Added a staged roadmap to implement the small changes and refactors identified by the audit

be composed per report type

.woodpecker/release.yml

@@ -0,0 +1,50 @@
+when:
+  - event: tag
+
+steps:
+  - name: build-release-assets
+    image: golang:1.25
+    commands:
+      - |
+        set -eu
+
+        version="$CI_COMMIT_TAG"
+        dist="dist"
+        pkg="gitea.maximumdirect.net/eric/weatherreporter/cmd/weatherreporter"
+
+        rm -rf "$dist"
+        mkdir -p "$dist"
+
+        build_binary() {
+          goos="$1"
+          goarch="$2"
+          suffix="$3"
+          output="$dist/weatherreporter-$version-$goos-$goarch$suffix"
+
+          CGO_ENABLED=0 GOOS="$goos" GOARCH="$goarch" \
+            go build -trimpath -ldflags "-s -w -X gitea.maximumdirect.net/eric/weatherreporter/internal/buildinfo.Version=$version" \
+            -o "$output" "$pkg"
+        }
+
+        build_binary linux amd64 ""
+        build_binary linux arm64 ""
+        build_binary darwin amd64 ""
+        build_binary darwin arm64 ""
+        build_binary windows amd64 ".exe"
+        build_binary windows arm64 ".exe"
+
+  - name: publish-release
+    image: woodpeckerci/plugin-release
+    depends_on:
+      - build-release-assets
+    settings:
+      api_key:
+        from_secret: GITEA_RELEASE_TOKEN
+      files:
+        - dist/weatherreporter-*
+      checksum: sha256
+      checksum-file: SHA256SUMS
+      checksum-flatten: true
+      file-exists: skip
+      overwrite: false
+      prerelease: false

README.md

@@ -1,14 +1,15 @@
 # weatherreporter
 
 `weatherreporter` is a Go application for preparing human-facing weather
-reports from normalized forecast data. It builds structured briefing packages,
+reports from normalized forecast data. It builds JSON module snapshots, passes
-runs them through `scriptorium`, and keeps inspectable artifacts under a local
+YAML prompt data packages to `scriptorium`, and keeps inspectable artifacts
-workspace.
+under a local workspace. It can also upload successfully generated managed
+Markdown reports to a configured `distributor` HTTP upload endpoint.
 
 ## Quickstart
 
 ```sh
-weatherreporter generate daily --date 2026-05-29 --out ./daily.md
+weatherreporter generate today --out ./today.md
 ```
 
 ## Documentation

docs/cli.md

@@ -1,24 +1,29 @@
 # Weatherreporter CLI
 
 `weatherreporter` generates Markdown weather reports, runs scheduled report
-batches, and inspects previously generated artifacts.
+batches, and inspects stored artifacts.
 
 ## Shortest Useful Command
 
 ```sh
-weatherreporter generate daily --date 2026-05-29 --out ./daily.md
+weatherreporter generate today --out ./today.md
 ```
 
 This loads configuration, fetches weather data, writes managed workspace
-artifacts, runs `scriptorium render` as a preflight check, runs
+artifacts, runs `scriptorium render` as a preflight check, runs structured
-`scriptorium run`, and writes an extra Markdown copy to `./daily.md`.
+`scriptorium run`, validates generated text, renders the embedded Today
+template, and writes an extra Markdown copy to `./today.md`. If distributor
+notification is enabled in configuration, the command also uploads the managed
+Markdown report after final metadata is saved.
 
 ## Commands
 
 ```text
 weatherreporter --help
-weatherreporter generate daily [--config PATH] [--units VALUE] [--tz NAME] [--out PATH] [--date YYYY-MM-DD]
+weatherreporter generate daily --date YYYY-MM-DD [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
+weatherreporter generate today [--config PATH] [--units VALUE] [--tz NAME] [--out PATH] [--date YYYY-MM-DD]
 weatherreporter generate tomorrow [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
+weatherreporter generate hourly [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
 weatherreporter generate three-day [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
 weatherreporter generate weekend [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
 weatherreporter generate storm [--config PATH] [--units VALUE] [--tz NAME] [--out PATH] --start TIME --end TIME
@@ -26,21 +31,37 @@ weatherreporter run morning [--config PATH] [--units VALUE] [--tz NAME] [--out-d
 weatherreporter run evening [--config PATH] [--units VALUE] [--tz NAME] [--out-dir PATH]
 weatherreporter inspect reports [--config PATH] [--limit N]
 weatherreporter inspect metadata [--config PATH] RUN_ID
-weatherreporter inspect briefing [--config PATH] RUN_ID
+weatherreporter inspect modules [--config PATH] RUN_ID
 weatherreporter inspect data-package [--config PATH] RUN_ID
 weatherreporter inspect prior [--config PATH] RUN_ID
 weatherreporter inspect sources [--config PATH] RUN_ID
 ```
 
-`generate` commands write briefing, data package, preflight, report, and
+Implemented `generate` commands write a JSON module snapshot, YAML data package,
-metadata artifacts under the configured workspace. `generate storm` requires
+preflight artifact, managed Markdown report, and metadata under the configured
-explicit event-window bounds with `--start` and `--end`.
+workspace. `--out` writes an extra Markdown copy for the operator; distributor
+notification uses the managed report path, not the extra copy. `generate daily`,
+`generate today`, `generate tomorrow`, and `generate hourly` write managed
+generated-text artifacts, validate structured text from Scriptorium, and render
+the managed Markdown report from embedded templates. `generate daily` requires
+`--date YYYY-MM-DD` for the selected local civil day; omitting `--date` is a
+command error and stops before weather data is fetched. `generate hourly`
+covers the next six hours in the effective report timezone and does not accept
+date or event window flags. `generate storm` requires explicit event-window
+bounds with `--start` and `--end`.
 
-`run morning` generates Daily Today and the 3-Day Outlook, plus Weekend Outlook
+`run morning` generates Today Report and the 3-Day Outlook, plus Weekend Outlook
-except on Sunday. `run evening` generates the Tomorrow Planning Brief. Batch
+except on Sunday. `run evening` generates the Tomorrow Report. Batch
 runs continue independent reports after a failure, print a JSON summary to
 stdout, write compact status lines to stderr, and return nonzero when any report
-failed.
+failed. `--out-dir` writes extra Markdown copies for the operator; distributor
+notification uses each managed report path, not the extra copies. When
+notification is enabled, batch summaries and status lines include notification
+status, accepted distributor run ID, or notification error fields for each
+attempted report.
+
+Hourly Report is explicit only; it is not included in `run morning` or `run
+evening`.
 
 `inspect` commands read existing workspace artifacts and emit JSON to stdout.
 They do not fetch weather data or invoke `scriptorium`.
@@ -51,9 +72,9 @@ They do not fetch weather data or invoke `scriptorium`.
 - `--config PATH`: load configuration from `PATH` instead of `/usr/local/etc/weatherreporter/config.yml`.
 - `--units VALUE`: override configured Weather API units for `generate` and `run`.
 - `--tz NAME`: override configured Weather API timezone for `generate` and `run`.
-- `--out PATH`: write an extra Markdown report copy for `generate` commands.
+- `--out PATH`: write an extra Markdown report copy where supported by the `generate` command.
 - `--out-dir PATH`: write extra Markdown report copies for `run morning` and `run evening`.
-- `--date YYYY-MM-DD`: optional date for `generate daily`; defaults to the current local date in the configured timezone.
+- `--date YYYY-MM-DD`: required date for `generate daily`; optional date for `generate today`, defaulting to the current local date in the configured timezone.
 - `--start TIME`: required start time for `generate storm`.
 - `--end TIME`: required end time for `generate storm`.
 - `--limit N`: maximum records for `inspect reports`; defaults to `20`, and `0` means no limit.
@@ -61,10 +82,16 @@ They do not fetch weather data or invoke `scriptorium`.
 Storm times accept `YYYY-MM-DDTHH:MM` in the configured timezone or RFC3339
 timestamps with explicit offsets.
 
+Distributor notification is configured only through `notify.distributor`; there
+are no distributor-specific CLI flags.
+
 ## Common Workflows
 
 ```sh
+weatherreporter generate today --out ./today.md
+weatherreporter generate daily --date 2026-05-29 --out ./daily.md
 weatherreporter generate tomorrow --out ./tomorrow.md
+weatherreporter generate hourly
 weatherreporter generate three-day --out ./three-day.md
 weatherreporter generate weekend --out ./weekend.md
 weatherreporter generate storm --start 2026-05-29T18:00 --end 2026-05-30T06:00 --out ./storm.md
@@ -76,15 +103,17 @@ weatherreporter run evening --out-dir ./reports
 
 ```sh
 weatherreporter inspect reports --limit 10
-weatherreporter inspect metadata 20260529T100000.000000000Z_daily_today
+weatherreporter inspect metadata 20260529T100000.000000000Z_today
-weatherreporter inspect briefing 20260529T100000.000000000Z_daily_today
+weatherreporter inspect modules 20260529T100000.000000000Z_today
-weatherreporter inspect data-package 20260529T100000.000000000Z_daily_today
+weatherreporter inspect data-package 20260529T100000.000000000Z_today
-weatherreporter inspect prior 20260529T100000.000000000Z_daily_today
+weatherreporter inspect prior 20260529T100000.000000000Z_today
-weatherreporter inspect sources 20260529T100000.000000000Z_daily_today
+weatherreporter inspect sources 20260529T100000.000000000Z_today
+weatherreporter inspect metadata 20260529T100000.000000000Z_daily
 ```
 
 `inspect reports` lists recent generated runs with artifact paths and source
-warning counts. The other inspect commands require a RunID. `inspect prior`
+warning counts. The other inspect commands require a RunID. `inspect modules`
+returns the persisted ordered module snapshot for a run. `inspect prior`
 returns the prior comparable snapshot metadata selected from stored metadata, or
 `null` when none exists. `inspect sources` shows source provenance and source
 warnings without dumping full weather payloads.

docs/config.md

@@ -16,9 +16,9 @@ Precedence is:
 2. configuration file
 3. built-in defaults
 
-The implemented configuration overrides are `--units` and `--tz`. Output flags
+The CLI configuration overrides are `--units` and `--tz`. Output flags control
-control report copies for the current command but do not change configuration
+report copies for the current command but do not change configuration files.
-files. Environment-variable configuration is not implemented.
+Environment variables do not override configuration fields.
 
 ## Minimal Config
 
@@ -53,7 +53,7 @@ Timezone values may be IANA names, configured aliases such as `Chicago` and
 
 ### `location`
 
-`location` is descriptive prompt context included in briefing metadata and
+`location` is descriptive prompt context included in module metadata and
 Scriptorium data packages. It does not select a Weather API endpoint or enable
 multiple configured forecast locations.
 
@@ -64,13 +64,75 @@ multiple configured forecast locations.
 The prompt-facing location object also includes `timezone`, derived from the
 effective `weather_api.timezone` after CLI overrides such as `--tz`.
 
+### `secrets`
+
+- `directory`: optional directory of file-backed environment secrets. Default:
+  empty, which disables secret loading.
+
+When configured, each regular file directly under `secrets.directory` is loaded
+after config file parsing and CLI overrides. The file basename must be a valid
+environment variable name matching `[A-Za-z_][A-Za-z0-9_]*`; the file contents
+become the environment variable value and overwrite any existing value. One
+trailing LF or CRLF is stripped. Subdirectories, symlinks, invalid filenames,
+missing directories, and unreadable files fail config loading.
+
+### `notify`
+
+`notify.distributor` controls distributor notification after successful report
+generation. It is disabled by default and does not add CLI flags. When enabled,
+weatherreporter uploads one distributor bundle per generated report after
+report rendering succeeds and final metadata is saved.
+
+- `enabled`: whether distributor notification config is active. Default:
+  `false`.
+- `endpoint`: absolute distributor endpoint URL. Required when enabled.
+  Default: `https://distributor.example.com`.
+- `token_env`: environment variable name that will contain the distributor
+  upload token. Required when enabled. Default: `DISTRIBUTOR_UPLOAD_TOKEN`.
+- `timeout`: distributor operation timeout. Must be greater than zero when
+  enabled. Default: `30s`.
+- `failure_policy`: must be `error` when enabled. Default: `error`.
+- `pipeline_id_template`: template for the distributor pipeline ID. Required
+  when enabled. Default: empty.
+- `bundle_id_template`: template for distributor bundle IDs. Default:
+  `weatherreporter.{location_id}.{report_id}`.
+- `idempotency_key_template`: template for distributor idempotency keys.
+  Default: `{bundle_id}.{run_id}`.
+- `report_path_templates`: ordered list of templates for Markdown report paths
+  inside the distributor bundle. Each rendered path maps to the same managed
+  Markdown report source. Default:
+  ```yaml
+  - "{valid_start_date}/{artifact_group}/{valid_start_date}-{artifact_group}-{run_id}.md"
+  ```
+
+Supported template variables are `location_id`, `report_id`, `run_id`,
+`artifact_group`, `batch_output_name`, `valid_start_date`, `valid_end_date`,
+`valid_start_time`, `valid_end_time`, `valid_start_stamp`, and
+`valid_end_stamp`. Date values use `YYYY-MM-DD`, time values use `HHMM`, and
+stamp values use `YYYY-MM-DDTHHMM` in the effective report timezone.
+`pipeline_id_template` and `idempotency_key_template` may also use `bundle_id`.
+
+The rendered pipeline ID selects the configured distributor `http_upload`
+workflow. The rendered bundle ID is the stable logical source identity for the
+report stream. The rendered idempotency key is the per-run retry identity.
+
+Rendered report paths must be unique relative paths with `/` separators. They
+must not contain backslashes, empty path segments, `.`, `..`, `manifest.json`,
+or `.distributor.json`.
+
+The upload token is read from the environment variable named by `token_env`
+after config loading and `secrets.directory` processing. Config files should
+name the variable only; they should not contain the token value.
+
 ### `missing_source`
 
 - `default`: missing-source behavior for optional sources. One of `error`, `warn`, or `none`. Default: `warn`.
 - `sources`: optional map of source-specific overrides, using the same policy values.
 
-Hourly forecast data is required for generated reports. Optional sources and
+Hourly forecast data is required for generated reports. Optional sources use
-stub source slots use the missing-source policy.
+the missing-source policy. Source override keys include `observations`,
+`current`, `narrative`, `alerts`, `discussion`, `weather_story`, and
+`spc_convective_outlooks`.
 
 ### `scriptorium`
 
@@ -83,10 +145,11 @@ stub source slots use the missing-source policy.
 ### `workspace`
 
 - `root`: workspace root for managed artifacts. Default: `workspace`.
-- `snapshots_dir`: briefing and metadata directory under `workspace.root`. Default: `snapshots`.
+- `snapshots_dir`: module snapshot and metadata directory under `workspace.root`. Default: `snapshots`.
 - `reports_dir`: managed Markdown report directory under `workspace.root`. Default: `reports`.
 - `data_packages_dir`: prompt input package directory under `workspace.root`. Default: `data-packages`.
 - `preflight_dir`: Scriptorium render output directory under `workspace.root`. Default: `preflight`.
+- `notifications_dir`: distributor notification debug artifact directory under `workspace.root`. Default: `notifications`.
 
 Workspace subdirectories must be relative paths that stay inside
 `workspace.root`.
@@ -110,19 +173,104 @@ midday, afternoon, and evening.
 - `wind_gust_miles_per_hour`: wind gust change threshold. Default: `10`.
 - `precip_timing_shift_minutes`: precipitation timing shift threshold. Default: `120`.
 
-Recent Changes are added to prompt input when a prior comparable briefing
+Recent Changes are added to prompt input when a prior comparable module
 snapshot exists and a threshold is crossed.
 
+### `reports`
+
+`reports` optionally overrides the ordered deterministic modules declared by
+report definitions. Omit a report entry to use its default module order.
+
+Supported report keys are `daily`, `today`, `tomorrow`, `hourly`,
+`three_day`, `weekend`, and `storm`. Canonical report IDs and accepted aliases
+are also valid, including `three_day_outlook`, `weekend_outlook`, and
+`storm_report`. Hyphens and underscores are treated equivalently in report
+keys. Retired report keys are not supported.
+
+`reports.today` applies only to the Today Report. `reports.daily` applies only
+to the dated Daily Report.
+
+Each report entry supports:
+
+- `deterministic_modules`: ordered module list. Entries may be string module
+  IDs or objects with `id` and optional `options`.
+
+Example:
+
+```yaml
+reports:
+  daily:
+    deterministic_modules:
+      - metadata
+      - current_conditions
+      - narrative_forecast
+      - alert_digest
+      - spc_convective_outlooks
+      - id: area_forecast_discussion
+        options:
+          sections:
+            - short_term
+      - spc_convective_discussion
+      - daily_planning
+      - hourly_forecast
+  today:
+    deterministic_modules:
+      - metadata
+      - current_conditions
+      - narrative_forecast
+      - derived_daily_summary
+      - derived_daypart_summaries
+      - precip_timing
+      - alert_digest
+      - spc_convective_outlooks
+      - area_forecast_discussion
+      - spc_convective_discussion
+      - weather_story
+      - outdoor_windows
+      - hourly_forecast
+      - today_planning
+  hourly:
+    deterministic_modules:
+      - metadata
+      - current_conditions
+      - hourly_forecast
+      - precip_timing
+      - alert_digest
+      - spc_convective_outlooks
+      - id: area_forecast_discussion
+        options:
+          sections:
+            - key_messages
+            - short_term
+      - spc_convective_discussion
+      - weather_story
+```
+
+Unknown reports, unknown modules, duplicate modules, incompatible report/module
+combinations, duplicate stanza names, and invalid options fail config loading.
+`area_forecast_discussion.options.sections` may contain `product`,
+`key_messages`, `short_term`, and `long_term`. Empty or omitted `sections`
+includes all available AFD sections.
+
+The module registry accepts all module IDs documented in
+[Module Contract Internals](internal/module.md). Unknown or unimplemented
+module IDs fail validation instead of being skipped.
+
 ## Secrets
 
-Configuration files should not contain secrets. The current Weather API and
+Configuration files should not contain raw secrets. Use `secrets.directory` to
-Scriptorium integration settings do not require secret fields.
+load secret values from files into environment variables for integrations that
+read credentials from the environment. Secret file names become environment
+variable names, and secret file contents become values. For distributor
+notification, this allows a file such as
+`<secrets.directory>/DISTRIBUTOR_UPLOAD_TOKEN` to supply the token referenced by
+`notify.distributor.token_env`.
 
 ## Maintained Examples
 
 - [examples/minimal-config.yml](../examples/minimal-config.yml): smallest
   useful config for generation and fetching.
 - [examples/config.yml](../examples/config.yml): production-oriented config
-  covering implemented fields.
+  covering maintained fields.
 
 Both example files are loaded by the config test suite.

docs/integrations/distributor/api.md

@@ -0,0 +1,136 @@
+# Upstream Producer Integration
+
+Audience: developers and LLM coding agents adding `distributor` support to an upstream Go producer application.
+
+This document is the copyable implementation guide for submitting producer outputs to a `distributor` pipeline whose source backend is `http_upload`.
+
+## Required Inputs
+
+The upstream application needs these values from deployment or operator configuration:
+
+- distributor endpoint: the HTTP server base URL, such as `https://distributor.example.com`;
+- upload token: bearer token that authenticates the producer;
+- pipeline id: configured `http_upload` pipeline that should process this upload;
+- generated files: regular local files to include in the source bundle;
+- bundle id: stable identifier for the logical report stream or artifact;
+- idempotency key: unique key for one producer run, reused only when retrying that same run.
+
+Do not put destination routing, public URLs, transform settings, or credentials in the source manifest. Those belong in the `distributor` pipeline configuration.
+
+The token, pipeline id, bundle id, and idempotency key have different jobs. The token authenticates the producer. The pipeline id selects the configured distributor workflow, including destinations and publishing policy. The bundle id tells `distributor` whether a new upload is a newer version of the same source; keep it stable across runs that should replace the same managed destination artifact. The idempotency key tells `distributor` whether an upload request is a retry; change it for each distinct producer run so new content is enqueued.
+
+## Recommended Workflow
+
+Use `gitea.maximumdirect.net/eric/distributor/pkg/upload`.
+
+For most producers, use `UploadFiles`. It accepts producer-generated files, builds a temporary valid source bundle with `pkg/bundle`, uploads a gzip-compressed tar archive, and removes temporary files when the call returns.
+
+Use `UploadBundle` only when the producer already assembled a complete bundle directory containing `manifest.json`.
+
+Add the dependency from the upstream application:
+
+```sh
+go get gitea.maximumdirect.net/eric/distributor
+```
+
+## Minimal Go Example
+
+```go
+package reports
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os"
+	"time"
+
+	"gitea.maximumdirect.net/eric/distributor/pkg/bundle"
+	"gitea.maximumdirect.net/eric/distributor/pkg/upload"
+)
+
+func SubmitReport(reportPath, summaryPath string) error {
+	endpoint := os.Getenv("DISTRIBUTOR_UPLOAD_ENDPOINT")
+	token := os.Getenv("DISTRIBUTOR_UPLOAD_TOKEN")
+	if endpoint == "" || token == "" {
+		return fmt.Errorf("distributor endpoint and token are required")
+	}
+
+	pipelineID := "weather-hourly"
+	reportID := "weather.hourly.brentwood"
+	runID := time.Now().UTC().Format("20060102T150405.000000000Z")
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	client, err := upload.NewClient(upload.ClientOptions{
+		Endpoint: endpoint,
+		Token:    token,
+	})
+	if err != nil {
+		return err
+	}
+
+	result, err := client.UploadFiles(ctx, upload.UploadFilesOptions{
+		PipelineID:     pipelineID,
+		ID:             reportID,
+		IdempotencyKey: reportID + "." + runID,
+		Files: []bundle.BundleFile{
+			{SourcePath: reportPath, Path: "report.md"},
+			{SourcePath: summaryPath, Path: "summary.txt"},
+		},
+	})
+	if err != nil {
+		var conflict *upload.IdempotencyConflictError
+		if errors.As(err, &conflict) {
+			return fmt.Errorf("idempotency key was reused for different bundle content: %w", err)
+		}
+		return err
+	}
+
+	fmt.Printf("distributor accepted run %s\n", result.RunID)
+	return nil
+}
+```
+
+## Producer Responsibilities
+
+- Use a stable bundle id for the logical producer output that should replace the same destination artifact, such as `weather.hourly.brentwood`.
+- Set `PipelineID` to the configured upload pipeline that should process the bundle.
+- Do not include per-run timestamps, random values, or job ids in the bundle id unless each run should be treated as a different source.
+- Use an idempotency key that changes for every distinct producer run, such as `<bundle-id>.<run-id>`.
+- Reuse the same idempotency key only when retrying the exact same producer run with the same source manifest.
+- Map each generated file to a clean slash-separated bundle path, such as `report.md` or `assets/chart.png`.
+- Include only regular files. Symlinks, directories as files, devices, FIFOs, and sockets are rejected.
+- Keep file contents stable after upload inputs are selected. Bundle digests are calculated from file bytes.
+- Treat upload success as admission only. `UploadFiles` and `UploadBundle` return after the server accepts and validates the upload, not after all destinations publish.
+
+Valid bundle paths are relative slash paths. They must not be empty, absolute, contain backslashes, contain `.` or `..` path segments, contain empty path segments, or use reserved basenames `manifest.json` or `.distributor.json`.
+
+## Idempotency And Status
+
+`pkg/upload` sends `Idempotency-Key` on every upload. If the caller omits one, the package generates a random key for that call and reuses it for in-process retries. That is enough for transient network retry within one process, but it does not give cross-process retry identity.
+
+For producer jobs that may retry after process restart, supply a key derived from the producer run, such as `<bundle-id>.<run-id>`. Reusing the same key with the same token, pipeline id, and normalized source manifest returns the original accepted run. Reusing the same key with different source content in that scope returns a conflict. Reusing one key across multiple distinct report generations prevents those generations from being treated as new uploads.
+
+`Status` polls `/runs/<run-id>` while the distributor server retains the in-memory status record. Status values are `accepted`, `queued`, `running`, `succeeded`, and `failed`. Completed records expire according to the server's `server.http.retention` setting, and server restart clears status and idempotency records.
+
+Optional status check:
+
+```go
+status, err := client.Status(ctx, result.RunID)
+if err != nil {
+	return err
+}
+if status.Status == "failed" {
+	return fmt.Errorf("distributor run failed: %s", status.Error)
+}
+```
+
+## References
+
+In the `distributor` source tree:
+
+- `docs/consumers/pkg-upload.md`: Go upload package workflow.
+- `docs/consumers/pkg-bundle.md`: Go bundle package workflow.
+- `docs/integrations/http-upload.md`: canonical HTTP upload wire contract.
+- `docs/integrations/source-bundle.md`: canonical source bundle file-format contract.

docs/integrations/distributor/pkg-bundle.md

@@ -0,0 +1,90 @@
+# `pkg/bundle`
+
+Audience: upstream Go producer developers and LLM coding agents using `distributor` source bundle helpers.
+
+Import path:
+
+```go
+import "gitea.maximumdirect.net/eric/distributor/pkg/bundle"
+```
+
+`pkg/bundle` builds, writes, parses, and validates local source bundles. Use it directly when a producer writes bundles for `distributor` to discover, or when a producer wants to assemble and validate a bundle before using another transport.
+
+The canonical source bundle file-format contract is [Source Bundle Contract](../integrations/source-bundle.md).
+
+## Preferred Complete-Bundle Workflow
+
+Use `WriteBundle` when producer-generated files live outside the final bundle root.
+
+```go
+manifest, err := bundle.WriteBundle(bundle.WriteBundleOptions{
+	Root: "/var/spool/distributor/weather/hourly-2026-06-07T15",
+	ID:   "weather.hourly.brentwood",
+	Files: []bundle.BundleFile{
+		{SourcePath: "/tmp/weather/report.md", Path: "report.md"},
+		{SourcePath: "/tmp/weather/summary.txt", Path: "summary.txt"},
+	},
+})
+if err != nil {
+	return err
+}
+_ = manifest
+```
+
+`WriteBundle` copies each source file into a staged bundle root, writes `manifest.json`, validates the staged bundle, and promotes it into place. Set `Overwrite: true` only when the producer intentionally replaces an existing bundle root.
+
+## Existing Bundle Root Workflow
+
+Use `BuildManifest` and `WriteManifest` when files are already staged under the final bundle root.
+
+```go
+root := "/var/spool/distributor/weather/hourly-2026-06-07T15"
+manifest, err := bundle.BuildManifest(bundle.BuildOptions{
+	Root:  root,
+	ID:    "weather.hourly.brentwood",
+	Files: []string{"report.md", "summary.txt"},
+})
+if err != nil {
+	return err
+}
+if err := bundle.WriteManifest(root, manifest, bundle.WriteManifestOptions{}); err != nil {
+	return err
+}
+if err := bundle.ValidateBundle(root, manifest); err != nil {
+	return err
+}
+```
+
+Use `Scan: true` instead of `Files` only when every valid regular file under the root should be included. Scan mode includes dotfiles, skips reserved metadata files, rejects symlinks, and sorts paths lexically.
+
+## Paths And Ordering
+
+Bundle paths are slash-separated paths relative to the bundle root.
+
+Invalid paths include:
+
+- empty paths;
+- absolute paths;
+- paths containing backslashes;
+- `.` or `..` path segments;
+- empty path segments;
+- any basename of `manifest.json` or `.distributor.json`.
+
+Explicit file lists preserve caller order. File order is part of the bundle digest, so producers should choose it deliberately and keep it stable.
+
+The manifest `ID` is the logical source identity used by `distributor` destination comparison. Keep it stable for runs that should replace the same managed destination artifact. If every run uses a different manifest `ID`, `distributor` treats those runs as different sources and may report a destination conflict instead of replacing older output.
+
+## Validation And Digest Helpers
+
+Use `ValidateBundle` before handing an existing local bundle to another process. It verifies manifest semantics, file existence, regular-file type, file size, per-file SHA-256 digests, and bundle digest.
+
+Useful helpers:
+
+- `LoadManifest`: read `manifest.json` from a bundle root.
+- `ParseManifest` and `MarshalManifest`: parse or write manifest bytes.
+- `ValidateManifest`: validate manifest-only semantics.
+- `FileDigest`, `BundleDigest`, and `ValidateDigest`: digest helpers for diagnostics and tests.
+
+## Boundaries
+
+`pkg/bundle` does not upload bundles, publish destinations, transform Markdown, select pipelines, configure credentials, or write destination state. Those concerns belong to `pkg/upload` or the `distributor` application.

docs/integrations/distributor/pkg-upload.md

@@ -0,0 +1,122 @@
+# `pkg/upload`
+
+Audience: upstream Go producer developers and LLM coding agents submitting bundles to `distributor serve`.
+
+Import path:
+
+```go
+import "gitea.maximumdirect.net/eric/distributor/pkg/upload"
+```
+
+`pkg/upload` is the producer-facing HTTP upload client. It builds on `pkg/bundle`, packages valid source bundles as gzip-compressed tar archives, sends bearer authentication, routes uploads to a configured pipeline, includes idempotency keys, and exposes a status polling helper.
+
+`UploadFiles` examples also use:
+
+```go
+import "gitea.maximumdirect.net/eric/distributor/pkg/bundle"
+```
+
+The canonical HTTP wire contract is [HTTP Upload API Contract](../integrations/http-upload.md).
+
+## Client Construction
+
+```go
+client, err := upload.NewClient(upload.ClientOptions{
+	Endpoint: "https://distributor.example.com",
+	Token:    token,
+})
+if err != nil {
+	return err
+}
+```
+
+`Endpoint` is the distributor server base URL. The client derives `/v1/pipelines/<pipeline-id>/upload` and `/runs/<run-id>`. `Token` is required and is sent as `Authorization: Bearer <token>`. Token values are redacted from client errors.
+
+`HTTPClient` and `Retry` are optional. Defaults use a 30 second HTTP timeout and safe retry settings.
+
+## Upload Producer Files
+
+Use `UploadFiles` when the producer has generated output files but has not assembled a bundle directory.
+
+```go
+result, err := client.UploadFiles(ctx, upload.UploadFilesOptions{
+	PipelineID:     "weather-hourly",
+	ID:             "weather.hourly.brentwood",
+	IdempotencyKey: "weather.hourly.brentwood.20260607T150000Z",
+	Files: []bundle.BundleFile{
+		{SourcePath: "/tmp/weather/report.md", Path: "report.md"},
+		{SourcePath: "/tmp/weather/summary.txt", Path: "summary.txt"},
+	},
+})
+if err != nil {
+	return err
+}
+_ = result.RunID
+```
+
+`PipelineID` is required and selects the configured distributor workflow for this upload. `ID` is the source manifest id and identifies the logical artifact inside that workflow. `UploadFiles` creates a temporary bundle, writes and validates a manifest, uploads the archive, and removes temporary files when the call returns. It does not write into producer source directories.
+
+## Upload An Existing Bundle
+
+Use `UploadBundle` when the producer already has a complete local bundle root containing `manifest.json`.
+
+```go
+result, err := client.UploadBundle(ctx, upload.UploadBundleOptions{
+	PipelineID:     "weather-hourly",
+	Root:           "/var/spool/weather/hourly-2026-06-07T15",
+	IdempotencyKey: "weather.hourly.brentwood.20260607T150000Z",
+})
+if err != nil {
+	return err
+}
+_ = result.RunID
+```
+
+`PipelineID` is required for existing bundles too. `UploadBundle` validates the local bundle by default and uploads only `manifest.json` plus manifest-listed files. Unlisted files are not uploaded.
+
+## Result And Status
+
+Upload success means the server returned `202 Accepted` after staging and validating the upload. It does not mean all configured destinations have published.
+
+Poll status while the server retains the in-memory run record:
+
+```go
+status, err := client.Status(ctx, result.RunID)
+if err != nil {
+	return err
+}
+if status.Status == "failed" {
+	return fmt.Errorf("distributor run failed: %s", status.Error)
+}
+```
+
+Status values are `accepted`, `queued`, `running`, `succeeded`, and `failed`. Completed records expire according to `server.http.retention`; server restart clears run status and idempotency records.
+
+## Idempotency And Retry
+
+Every upload request includes `Idempotency-Key`.
+
+If `IdempotencyKey` is omitted, the client generates a random 128-bit lowercase hexadecimal key for that upload operation and reuses it for retries within the same call. For cross-process retry safety, producers should pass a key derived from the producer run, such as `<bundle-id>.<run-id>`.
+
+Do not reuse the same idempotency key for multiple distinct report generations. Reuse it only when retrying the exact same run with the same token, pipeline id, and source manifest. A repeated key with the same manifest in that scope returns the original accepted run instead of enqueueing another run; a repeated key with different content returns an idempotency conflict.
+
+The client retries only safe cases:
+
+- `503 Service Unavailable`;
+- temporary network errors;
+- ambiguous mid-upload failures.
+
+It does not retry after `202 Accepted` and does not retry `400`, `401`, `403`, `404`, `409`, `413`, or `415`.
+
+Detect conflicting key reuse with `errors.As`:
+
+```go
+var conflict *upload.IdempotencyConflictError
+if errors.As(err, &conflict) {
+	return fmt.Errorf("idempotency key was reused for different bundle content: %w", err)
+}
+```
+
+## Boundaries
+
+`pkg/upload` does not configure server pipelines, choose destinations, wait for publication completion automatically, persist client queues, provide durable idempotency across server restarts, or expose destination state. It submits complete source bundles to the configured HTTP upload API.

docs/integrations/scriptorium.md

@@ -6,7 +6,7 @@ This document describes the external Scriptorium CLI contract used by
 ## Purpose
 
 `weatherreporter` invokes Scriptorium as a subprocess to preflight prompt input
-and generate Markdown reports. This page documents the CLI surface the adapter
+and generate report artifacts. This page documents the CLI surface the adapter
 uses, not the full Scriptorium product.
 
 ## Commands Used
@@ -29,9 +29,24 @@ scriptorium run \
   --out <artifact_path>
 ```
 
+Structured generated-text report generation uses the same command shape:
+
+```bash
+scriptorium run \
+  --prompt <prompt_id> \
+  --input data_package=<path> \
+  --out <generated_text_raw_path>
+```
+
 `weatherreporter` always passes prompt input as
-`--input data_package=<path>`. The data package is structured JSON created by
+`--input data_package=<path>`. The data package is structured YAML created by
-`internal/promptinput`.
+`internal/promptinput`; module snapshots remain separate JSON artifacts for
+inspection and Recent Changes.
+
+For generated-text reports, Scriptorium selects the structured output schema
+from the prompt configuration associated with the prompt ID. `weatherreporter`
+does not pass `--format`, schema path, or JSON Schema flags for structured
+generation.
 
 ## Configured Arguments
 
@@ -67,11 +82,17 @@ Render results include:
 - exit code
 - truncation flags when applicable
 
-Run results include the same fields plus the requested output path.
+Run results include the same fields plus the requested output path. Structured
+generated-text run results use the same captured fields and output-path
+recording, with the output path pointing at the raw generated-text JSON
+artifact.
 
 `weatherreporter` persists render preflight JSON when orchestration reaches the
-preflight save point. The final Markdown artifact is written by Scriptorium to
+preflight save point. For direct Markdown reports, Scriptorium writes the
-the `--out` path.
+managed Markdown artifact to the `--out` path. For generated-text-template
+reports, Scriptorium writes raw JSON to the `--out` path; later
+weatherreporter workflow steps validate those bytes and render Markdown from an
+embedded template.
 
 ## Failure Behavior
 
@@ -79,7 +100,7 @@ The adapter validates required request fields before starting Scriptorium:
 
 - prompt ID
 - data package path
-- output path for `run`
+- output path for `run` and structured generated-text `run`
 
 Nonzero exits return both the captured result and an error containing the exit
 code and stderr. A `run` exit code such as `2` is still treated as an error by

docs/integrations/weatherapi.md

@@ -6,7 +6,7 @@ This document describes the external Weather API contract used by
 ## Purpose
 
 `weatherreporter` uses a configured Weather API base URL to fetch normalized
-weather source data and assemble a `forecast.Bundle`. This is an integration
+weather source data and assemble a `weatherdata.Bundle`. This is an integration
 contract for the project adapter, not a complete public API reference for the
 upstream service.
 
@@ -37,6 +37,10 @@ generation.
 means the endpoint was checked and there are no current active alerts. The
 adapter records a non-missing alerts source and an empty alert run.
 
+For `/outlooks/convective`, `data: null` means no latest run is available and
+follows missing-source policy. A non-null run with empty `outlooks` and
+`discussions` arrays is checked empty data, not a missing source.
+
 Malformed JSON envelopes, non-2xx statuses, and response read failures include
 endpoint context in returned errors. Decode errors include source context when
 they fail the fetch; optional malformed sources follow the missing-source policy.
@@ -45,15 +49,70 @@ they fail the fetch; optional malformed sources follow the missing-source policy
 
 The adapter sends these query parameters:
 
-- `format`: from `weather_api.format`; the implemented configuration requires
+- `format`: from `weather_api.format`; configuration validation requires `json`
-  `json`
 - `units`: from `weather_api.units`
 - `precision`: from `weather_api.precision` on observations, current
   conditions, hourly forecast, and narrative forecast requests
-- `tz`: from `weather_api.timezone` on hourly forecast, narrative forecast, and
+- `tz`: from `weather_api.timezone` on hourly forecast, narrative forecast,
-  discussion requests
+  discussion, and SPC convective outlook requests
 
-Alerts do not receive `precision` or `tz`.
+Alerts do not receive `precision` or `tz`. Weather story requests receive only
+`format=json`. SPC convective outlook requests receive only `format=json` and
+`tz`; they do not receive `units` or `precision`.
+
+## SPC Convective Outlooks
+
+The adapter fetches SPC convective outlook data from:
+
+```text
+GET /outlooks/convective?format=json&tz=<weather_api.timezone>
+```
+
+The response uses the standard `data` envelope. `data: null` means no latest
+run is available and follows missing-source policy. A non-null object with
+empty `outlooks` and `discussions` arrays is accepted as checked empty data.
+
+Run fields consumed by weatherreporter:
+
+- `locationId`
+- `locationName`
+- `asOf`
+- `issuedAt`
+- `updatedAt`
+- `product`
+- `outlooks`
+- `discussions`
+
+Outlook fields consumed:
+
+- `id`
+- `provider`
+- `product`
+- `day`
+- `outlookType`
+- `label`
+- `labelText`
+- `forecaster`
+- `severityRank`
+- `validFrom`
+- `validTo`
+- `issuedAt`
+- `expiresAt`
+- `sourceUrl`
+- `imageUrl`
+- `containsLocation`
+- `geometry`
+
+Discussion fields consumed:
+
+- `day`
+- `headline`
+- `summary`
+- `discussion`
+- `updatedAt`
+
+GeoJSON `geometry` is decoded into collected weather facts and persisted in
+bundle/debug artifacts, but prompt-facing SPC module output omits geometry.
 
 ## Endpoints Used
 
@@ -65,6 +124,8 @@ The adapter fetches these endpoints once per bundle:
 - `/forecast/narrative`
 - `/alerts/active`
 - `/discussion`
+- `/weatherstories/latest`
+- `/outlooks/convective`
 
 `weatherreporter` does not call day-slice forecast endpoints or discussion
 subsection endpoints. Report-period selection and daypart summarization happen
@@ -86,10 +147,8 @@ source-specific `missing_source.sources` policy:
 - `narrative` for `/forecast/narrative`
 - `alerts` for `/alerts/active`
 - `discussion` for `/discussion`
-
+- `weather_story` for `/weatherstories/latest`
-The adapter also creates missing stub source records for `daily` and
+- `spc_convective_outlooks` for `/outlooks/convective`
-`weather_story` because those source slots exist in the internal bundle but are
-not fetched from the Weather API.
 
 Policy behavior:
 
@@ -101,6 +160,9 @@ For `/alerts/active`, an HTTP error or missing `data` field still fails or
 follows the relevant error path, but explicit `data: null` is not a
 missing-source condition.
 
+For `/outlooks/convective`, a non-null data object with empty outlook and
+discussion arrays is accepted as checked empty data.
+
 ## Source Identity
 
 For source payloads accepted into the bundle, including the explicit `null`
@@ -118,14 +180,18 @@ warnings list.
 
 ## Compatibility Assumptions
 
-The adapter expects payload fields compatible with the internal forecast bundle
+The adapter expects payload fields compatible with the internal weather data
-types in `internal/forecast/bundle.go`, including:
+bundle types in `internal/weatherdata/bundle.go`, including:
 
 - observation timestamps and observation values
 - current condition values
 - forecast run metadata and `periods`
 - active alert run data
 - discussion metadata, key messages, and short/long-term section text
+- latest weather story title, description, timing, priority, order, alt text,
+  and download URL
+- SPC convective outlook run metadata, outlooks, discussions, and GeoJSON
+  geometry
 
 The adapter intentionally keeps upstream transport and envelope details inside
 `internal/adapters/weatherapi`; downstream packages consume the normalized

docs/internal/app-orchestration.md

@@ -1,14 +1,15 @@
 # App Orchestration Internals
 
-This document describes the implemented workflow coordinator in `internal/app`.
+This document describes the workflow coordinator in `internal/app`.
 
 ## Purpose
 
 `internal/app` coordinates the top-level use cases after CLI parsing and config
 loading are complete. It resolves report definitions, fetches weather data,
-builds briefing and prompt-input artifacts, invokes Scriptorium through the
+builds collected and derived facts, builds module snapshots and prompt-input
-adapter boundary, persists managed state, runs batches, and reads existing
+artifacts, invokes Scriptorium through the adapter boundary, optionally
-artifacts for inspection.
+notifies distributor through an app-owned notifier boundary, persists managed
+state, runs batches, and reads existing artifacts for inspection.
 
 ## Inputs And Outputs
 
@@ -17,76 +18,133 @@ Inputs:
 - `GenerateRequest` for one report command
 - `BatchRequest` for morning or evening batch commands
 - `FetchBundleRequest` for explicit bundle fetch and save workflows
-- `BriefingRequest` and `ReportRequest` for package-level orchestration tests
+- `ReportRequest` for single-report generation
-  and internal composition
 - resolved report definitions from `internal/report`
-- forecast bundles from `internal/adapters/weatherapi`
+- weather data bundles from `internal/adapters/weatherapi`
 - prior snapshots loaded from `internal/state`
-- optional renderer and state-store fakes for tests
+- optional renderer, notifier, and state-store fakes for tests
 
 Outputs:
 
-- generated report results with briefing, data package, preflight, report,
+- generated report results with JSON module snapshot, YAML data package,
-  metadata, prior snapshot, Recent Changes, and Scriptorium result details
+  preflight, report, metadata, prior snapshot, Recent Changes, Scriptorium
-- batch summaries with per-report status, artifact paths, and error text
+  result details, generated-text artifact paths when applicable, and
+  notification result when attempted
+- batch summaries with per-report status, artifact paths, error text, and
+  notification outcome when attempted
 - saved Weather API bundle JSON for fetch workflows
-- inspection JSON values for reports, metadata, briefings, data packages, prior
+- inspection JSON values for reports, metadata, module snapshots, data
-  snapshots, and source provenance
+  packages, prior snapshots, and source provenance
 
 ## Boundaries
 
 `internal/app` owns workflow order and request composition. It does not parse
-CLI flags, load YAML files directly, implement HTTP transport, derive forecast
+CLI flags, load YAML files directly, implement HTTP transport, own fact
-facts, define report periods, compare rendered Markdown, or construct
+derivation algorithms, define report periods, compare rendered Markdown, or
-Scriptorium argv.
+construct Scriptorium argv.
 
 Report selection and report identity policy come from `internal/report`.
+Collected and derived fact contracts come from `internal/facts`.
 Weather API transport stays in `internal/adapters/weatherapi`. Scriptorium
-subprocess behavior stays in `internal/adapters/scriptorium`. Filesystem layout
+subprocess behavior stays in `internal/adapters/scriptorium`. Distributor
-and persisted metadata stay in `internal/state`.
+upload behavior stays in `internal/adapters/distributor`. Filesystem layout and
+persisted metadata stay in `internal/state`.
+
+## Data Flow Terms
+
+- `CollectedFacts` are normalized source facts fetched once from Weather API
+  and made available to derivation and module builders.
+- `DerivedFacts` are deterministic calculations over collected facts, the
+  resolved valid period, daypart configuration, and report-specific windows.
+- `module.Output` values are ordered deterministic stanzas built from collected
+  and derived facts for prompt input and inspection.
+- `GeneratedText` is structured prose returned by Scriptorium for
+  generated-text-template reports and validated by `internal/generatedtext`.
+- `RenderContext` is the typed template input built from report metadata,
+  module outputs, and validated generated text before Markdown rendering.
 
 ## Config Fields Used
 
-- `weather_api.*` for Weather API client construction and briefing metadata
+- `weather_api.*` for Weather API client construction and module metadata
 - `scriptorium.*` for renderer construction
 - `workspace.*` for filesystem state
 - `dayparts` for daily and outlook summarization
 - `recent_change.*` for structured Recent Changes thresholds
+- `notify.distributor.*` for optional notification after report generation
 
 Output copy flags are command request fields. They are not configuration
 defaults.
 
 ## Generation Workflow
 
-Single-report generation follows this order:
+Single-report generation shares this setup:
 
 1. Resolve the command report to a `report.Resolved` value.
 2. Create or use a filesystem store.
 3. Locate any prior compatible snapshot through `internal/state`.
 4. Fetch a Weather API bundle.
-5. Build a report-specific briefing package.
+5. Build collected and derived facts once.
-6. Save the briefing snapshot.
+6. Execute configured modules and save the module snapshot.
-7. Compute Recent Changes from structured prior and current briefings.
+7. Compute Recent Changes from structured prior and current module snapshots.
-8. Build and save the Scriptorium `data_package`.
+8. Build and save the YAML Scriptorium `data_package`.
 9. Run Scriptorium render preflight.
 10. Save preflight JSON when a render result is available.
 11. Save metadata for inspection.
-12. Run Scriptorium report generation to the managed report path.
+
-13. Copy the managed report to the requested `--out` path when provided.
+For `scriptorium_markdown` reports, generation then:
-14. Save metadata with the managed report path.
+
+12. Runs Scriptorium report generation to the managed report path.
+
+For `generated_text_template` reports, generation then:
+
+12. Looks up the generated-text catalog entry for the report schema/template
+    IDs.
+13. Runs structured Scriptorium generation to the raw generated-text JSON path.
+14. Saves the structured Scriptorium run result.
+15. Validates and saves normalized generated text.
+16. Builds and saves a typed render context.
+17. Renders Markdown from the embedded template to the managed report path.
+
+After either mode has produced a managed Markdown report, shared finalization:
+
+1. Copies the managed report to the requested `--out` or `--out-dir` path when
+   provided.
+2. Saves final metadata with the managed report path and any generated-text
+   artifact paths already produced.
+3. If distributor notification is enabled, notifies using the managed report
+   path as the source file.
+4. Saves a distributor notification debug artifact and updates metadata with
+   its path.
 
 If render preflight returns both a result and an error, preflight JSON and
 metadata are persisted before the error is returned. If Scriptorium report
 generation returns an error after writing output, the managed report and
-metadata remain inspectable.
+metadata remain inspectable. Notification is not attempted after Weather API,
+module snapshot, prompt input, render, Scriptorium run, or metadata-save
+failures.
+Generated-text report failures are returned with report ID, RunID, and the
+failed operation. When available, the app preserves the latest generated-text
+artifacts already reached by the workflow: preflight output, structured run
+result, raw generated text, validated generated text, and render context.
+When notification is attempted, the debug artifact records request identity,
+including rendered pipeline ID, bundle paths, accepted upload fields,
+distributor status fields, raw status report JSON when available, and redacted
+failure context.
+`--out` copies are never used as notification source files.
 
 ## Batch Workflow
 
-`run morning` resolves Daily Today, 3-Day Outlook, and Weekend Outlook except
+`run morning` resolves Today Report, 3-Day Outlook, and Weekend Outlook except
-on Sunday. `run evening` resolves Daily Tomorrow. Batch output copy names come
+on Sunday. `run evening` resolves Tomorrow Report. Daily Report is generated
-from report definitions. Batch generation continues independent reports after a
+only through `generate daily --date YYYY-MM-DD`; it is not part of scheduled
-failure, records each result, writes compact status lines to stderr, emits a
+batches. Batch output copy names come from report definitions. Batch generation
-JSON summary to stdout, and returns an aggregate error when any report failed.
+continues independent reports after a failure, records each result, writes
+compact status lines to stderr, emits a JSON summary to stdout, and returns an
+aggregate error when any report failed. When notification is enabled, each
+successfully generated report is notified independently. Notification failure
+marks that report failed, records notification fields in the batch result, and
+does not stop later reports. `--out-dir` copies are never used as notification
+source files.
 
 ## Inspection Workflow
 
@@ -98,9 +156,14 @@ inspection view.
 ## Failure Behavior
 
 - Resolve errors stop the requested workflow before fetching weather data.
-- Weather API and briefing errors stop that report before Scriptorium runs.
+- Weather API and module execution errors stop that report before Scriptorium
+  runs.
 - Prompt input validation fails before render preflight.
 - Render and run errors preserve Scriptorium stderr and exit-code context.
+- Generated-text report errors preserve available intermediate artifacts and do
+  not create extra output copies.
+- Notification errors are wrapped with report ID, RunID, and managed report path
+  context and are recorded separately in batch results.
 - Metadata and artifact path errors include filesystem context.
 - Batch failures are recorded per report and surfaced through an aggregate
   batch error.
@@ -119,5 +182,9 @@ Inspect:
 - Generated reports use the same app request and result types regardless of
   report ID.
 - Render preflight precedes Scriptorium report generation.
-- Recent Changes are computed from structured briefing snapshots.
+- Generated-text reports render Markdown from a curated render context, not from
+  a raw data package.
+- Recent Changes are computed from structured module snapshots.
 - Metadata links artifacts produced for a run.
+- Distributor notification maps the managed Markdown report path to configured
+  bundle paths; extra output copies are not upload sources.

docs/internal/briefing.md

@@ -1,45 +1,112 @@
-# Briefing Internals
+# Module Builder Internals
 
-This document describes the implemented briefing package boundary.
+This document describes module builder behavior in `internal/briefing`.
 
 ## Purpose
 
-`internal/briefing` builds structured report-specific briefing packages from
+`internal/briefing` turns report metadata, collected weather data, and derived
-resolved report metadata, forecast bundles, and derived forecast summaries.
+forecast facts into prompt-facing module outputs. The package also owns the
-Briefings are curated inputs for prompt data packages, not rendered report
+module registry used to validate report composition and config overrides.
-prose.
+
+Module outputs are structured prompt inputs. They are not rendered report prose
+and they are not persisted by this package.
 
 ## Inputs And Outputs
 
 Inputs:
 
 - resolved report definition, generation time, timezone, and valid period
-- forecast bundle with source provenance and warnings
+- collected facts built from `weatherdata.Bundle`
-- derived daily or period summaries where required
+- derived daily, daypart, precipitation, alert, and storm-window facts where
+  required
 - configured units, timezone, and descriptive location context
+- typed module options from report defaults or config overrides
 
 Outputs:
 
-- `briefing.Package` with common metadata and one report-specific content
+- `ModuleDefinition` values with module ID, stanza name, option type,
-  object for Daily, 3-Day, Weekend, or Storm Report
+  supported reports, fact requirements, missing-data behavior, and builder
-- optional `currentConditions` prompt context from normalized
+- `module.Output` values for source-oriented stanzas:
-  `/conditions/current` data when available
+  `metadata`, `current_conditions`, `narrative_forecast`, `hourly_forecast`,
-- optional JSON file written by `briefing.Save`
+  `alert_digest`, `spc_convective_outlooks`,
+  `area_forecast_discussion`, `spc_convective_discussion`, and
+  `weather_story`
+- `module.Output` values for derived stanzas:
+  `derived_daily_summary`, `derived_daypart_summaries`, `precip_timing`,
+  `outdoor_windows`, `today_planning`, `tomorrow_planning`, and
+  `daily_planning`
+
+Every registered composition entry has a builder. Unknown or unimplemented
+module IDs fail validation instead of being skipped.
+
+Daily Report supports the Daily-style civil-day modules plus `daily_planning`
+and `hourly_forecast`; those outputs feed the dated Daily GeneratedText prompt
+package and embedded Markdown template.
+
+Tomorrow Report supports the Daily-style civil-day modules plus
+`tomorrow_planning` and `hourly_forecast`; those outputs feed the Tomorrow
+GeneratedText prompt package and embedded Markdown template.
+
+Today Report supports the Daily-style civil-day modules plus `today_planning`
+and `hourly_forecast`; those outputs feed the Today GeneratedText prompt
+package and embedded Markdown template.
+
+`today_planning` is a Today-specific deterministic planning stanza with
+morning readiness, commute/school/workday concerns, outdoor planning, and
+late-day change-watch fields. It is compatible with `report.Today` only.
+
+`daily_planning` is a dated Daily deterministic planning stanza with morning
+readiness, commute/school/workday concerns, and overnight change-watch fields.
+It is compatible only with the `daily` report ID value. The default Daily
+Report composition includes it.
+
+Hourly Report supports source and valid-period modules that operate over its
+rolling six-hour period: `metadata`, `current_conditions`, `hourly_forecast`,
+`precip_timing`, `alert_digest`, `spc_convective_outlooks`,
+`area_forecast_discussion`, `spc_convective_discussion`, and `weather_story`.
+It does not support daily/daypart-only modules such as
+`derived_daily_summary`, `derived_daypart_summaries`, `outdoor_windows`,
+`today_planning`, `tomorrow_planning`, or `daily_planning`.
+
+Prompt-facing module values use local, human-readable date and time labels
+where the LLM is expected to reason about report content. Canonical timestamps
+remain in report metadata, source provenance, and integration artifacts.
 
 ## Boundaries
 
-- This package selects and shapes weather facts for prompts.
+- This package selects and shapes already-collected weather facts for prompts.
-- It does not fetch weather data, compare prior snapshots, build
+- It validates module composition against report compatibility and option
-  `data_package` files, invoke Scriptorium, or write workflow metadata.
+  types.
+- It does not fetch weather data, compare prior snapshots, write module
+  snapshots, build YAML data packages, invoke Scriptorium, or write workflow
+  metadata.
 
 ## Config Fields Used
 
-The package receives configured units and timezone from the app layer. Daypart
+The app layer passes effective units, timezone, and location context into the
-configuration is consumed by `internal/forecast` before briefing builders run.
+module context. `internal/facts` consumes daypart configuration before module
-Configured `location` values are prompt context only; Weather API
+builders run. Configured `location` values are prompt context only; Weather API
 `sourceLocationId` and `sourceLocation` remain source provenance.
-Current conditions are copied from the normalized `/conditions/current` bundle
+
-source only; observation station and timestamp fields remain provenance.
+`area_forecast_discussion` uses optional `sections` configuration to include a
+subset of discussion fields. Hourly Report defaults this module to
+`key_messages` and `short_term`.
+
+`spc_convective_outlooks` uses collected SPC run metadata and derived
+report-period outlooks. It emits `checked: true` for a successfully fetched
+empty run, reports `outlook_count`, and includes prompt-facing outlook fields
+such as risk label, `period_begins`, `period_ends`, image URL, and whether the
+outlook contains the configured location. It does not emit GeoJSON geometry,
+source URL, expiration time, or severity rank.
+
+Prompt-facing module intervals use friendly local `period_begins` and
+`period_ends` labels. Canonical report metadata, source provenance,
+`issued_at`, `updated_at`, and point-in-time fields remain separate.
+
+`spc_convective_discussion` uses the same derived report-period outlooks and
+discussion records. It is omitted unless at least one retained categorical
+outlook for the same SPC day has severity rank `3` or higher and matching
+discussion text exists.
 
 ## External Adapters Used
 
@@ -47,39 +114,45 @@ None directly.
 
 ## State Or Manifest Behavior
 
-`briefing.Save` writes briefing JSON atomically. Managed workspace placement is
+None. `internal/app` collects module outputs into a `module.Snapshot`, and
-owned by `internal/state`.
+`internal/state` persists that snapshot.
 
 ## Skip And Resume Behavior
 
-None. Builders either return a complete briefing package or an error.
+None. Builders either emit a module output, omit optional unavailable data, or
+return an error for invalid required inputs.
 
 ## Failure Behavior
 
-- Daily briefing construction requires a Daily report definition and derived
+- Required derived modules return errors when their dependent facts are not
-  daily summary.
+  available.
-- 3-Day briefing construction requires a 3-Day report definition and at least
+- Module registry construction rejects duplicate module IDs and duplicate
-  one derived summary.
+  stanza names.
-- Weekend briefing construction requires a Weekend report definition and at
+- Composition validation rejects unknown modules, duplicate modules,
-  least one derived summary.
+  incompatible report/module combinations, duplicate stanza names, and invalid
-- Storm briefing construction requires a Storm Report definition and forecast
+  option shapes.
-  bundle.
+- Source-oriented module builders omit missing optional current conditions,
-- Save failures include path and operation context.
+  forecast discussion, and weather story stanzas.
+- Alert digest output distinguishes checked empty alert data from missing alert
+  source data.
+- SPC convective outlook output distinguishes checked empty outlook data from
+  missing outlook source data and omits GeoJSON geometry from prompt-facing
+  fields.
+- SPC convective discussion output is omitted unless a retained outlook has
+  severity rank `3` or higher and matching discussion text is available.
 
 ## Tests
 
 Inspect:
 
-- `internal/briefing/daily_test.go`
+- `internal/briefing/base_modules_test.go`
-- `internal/briefing/three_day_test.go`
+- `internal/briefing/derived_modules_test.go`
-- `internal/briefing/weekend_test.go`
+- `internal/briefing/modules_test.go`
-- `internal/briefing/storm_test.go`
 - `internal/app/app_test.go`
 
 ## Invariants
 
-- Briefings contain structured weather facts and source context.
+- Module outputs contain structured weather facts and source context.
 - Common metadata includes RunID, report ID, prompt ID, valid period, source
   provenance, source hashes, source warnings, and configured prompt location.
-- LLM prompt input packaging and Scriptorium execution remain outside this
+- Prompt input packaging and Scriptorium execution remain outside this package.
-  boundary.

docs/internal/changes.md

@@ -4,15 +4,15 @@ This document describes structured Recent Changes comparison.
 
 ## Purpose
 
-`internal/changes` compares current and prior briefing packages and emits
+`internal/changes` compares current and prior module snapshots and emits
 compact change records for prompt input data packages.
 
 ## Inputs And Outputs
 
 Inputs:
 
-- prior briefing package
+- prior module snapshot
-- current briefing package
+- current module snapshot
 - comparison thresholds from configuration
 
 Outputs:
@@ -22,7 +22,7 @@ Outputs:
 
 ## Boundaries
 
-- This package compares structured briefing data only.
+- This package compares structured module snapshot data only.
 - It does not read filesystem state, find prior snapshots, render Markdown,
   invoke Scriptorium, or compare generated report text.
 
@@ -41,7 +41,7 @@ None.
 
 ## State Or Manifest Behavior
 
-None directly. The app loads prior briefing snapshots through `internal/state`
+None directly. The app loads prior module snapshots through `internal/state`
 before calling comparison functions.
 
 ## Skip And Resume Behavior
@@ -51,11 +51,12 @@ empty Recent Changes list without calling a comparison function.
 
 ## Failure Behavior
 
-- Daily comparison requires both inputs to contain Daily briefing content.
+- Daily comparison requires `derived_daily_summary` and
-- 3-Day comparison requires both inputs to contain 3-Day briefing content.
+  `derived_daypart_summaries` stanzas. It also uses `alert_digest` and
-- Weekend comparison requires both inputs to contain Weekend briefing content.
+  `precip_timing` when present.
-- Storm Report currently has no comparison implementation, so the app leaves
+- 3-Day comparison requires `derived_daypart_summaries`.
-  Recent Changes empty for Storm reports.
+- Weekend comparison requires `derived_daypart_summaries`.
+- Storm Report comparison returns no changes.
 
 ## Tests
 

docs/internal/distributor-adapter.md

@@ -0,0 +1,123 @@
+# Distributor Adapter Internals
+
+This document describes the distributor upload adapter in
+`internal/adapters/distributor`.
+
+## Purpose
+
+The adapter submits generated weatherreporter Markdown reports to a configured
+distributor HTTP upload endpoint. It isolates distributor package types,
+token-env lookup, upload client construction, source-bundle file mapping,
+timeout handling, status polling, and upload error wrapping from app
+orchestration.
+
+## Inputs And Outputs
+
+Inputs:
+
+- distributor endpoint URL
+- token environment variable name
+- upload timeout
+- pipeline ID
+- bundle ID
+- idempotency key
+- source Markdown report path and bundle-relative path mappings
+- bundle created timestamp
+- context for cancellation
+
+Outputs:
+
+- accepted distributor run ID
+- accepted distributor upload status
+- distributor run status, status polling error, and raw run report JSON when available
+- weatherreporter-owned idempotency conflict error when applicable
+
+## Boundaries
+
+`internal/adapters/distributor` is the only weatherreporter package that imports
+`gitea.maximumdirect.net/eric/distributor/pkg/upload` or
+`gitea.maximumdirect.net/eric/distributor/pkg/bundle`.
+
+The app layer passes weatherreporter-owned request values to the adapter. The
+adapter does not choose report types, render templates, select output copies,
+configure destinations, wait for downstream publication, transform Markdown, or
+persist notification state.
+
+Full upstream distributor package and HTTP contract details stay under
+`docs/integrations/distributor/`.
+
+## Config Fields Used
+
+The adapter is built from `notify.distributor` config:
+
+- `endpoint`
+- `token_env`
+- `timeout`
+
+The app layer renders pipeline ID, bundle ID, idempotency key, and bundle paths
+from:
+
+- `pipeline_id_template`
+- `bundle_id_template`
+- `idempotency_key_template`
+- `report_path_templates`
+
+The token value is read from the environment variable named by `token_env`
+after config loading and `secrets.directory` processing.
+
+## Upload Behavior
+
+The adapter calls distributor `UploadFiles` with one or more file mappings:
+
+- pipeline ID: the rendered distributor workflow selector
+- source path: the managed Markdown report path selected by app orchestration
+- bundle paths: rendered bundle-relative report paths
+- created: the report generation timestamp
+
+The adapter creates a distributor upload client with the configured endpoint,
+bearer token, and timeout-backed HTTP client. It also wraps the upload context
+with the configured timeout when the timeout is greater than zero.
+
+After upload acceptance, the adapter polls distributor `Status` for the accepted
+run ID until the run reaches `succeeded` or `failed`, or until the configured
+timeout expires. It returns the latest status, error text, and raw report JSON in
+weatherreporter-owned types so app orchestration can persist them in the
+notification debug artifact. Status lookup failures or timeout before a terminal
+state are kept as debug status errors on an otherwise accepted upload. A
+terminal distributor run status of `failed` is returned as a notification failure
+with the status report preserved.
+
+## Failure Behavior
+
+The adapter validates required endpoint, token env name, token value, pipeline
+ID, bundle ID, idempotency key, upload files, source paths, bundle paths, and
+upload client inputs before uploading.
+
+Upload failures include endpoint, pipeline ID, bundle ID, idempotency key,
+source paths, and bundle paths context. Token values are redacted from adapter
+errors.
+
+Distributor idempotency conflicts are exposed as a weatherreporter-owned
+`IdempotencyConflictError`, so callers do not depend on upstream distributor
+types.
+
+## Tests
+
+Inspect:
+
+- `internal/adapters/distributor/client_test.go`
+- `internal/app/app_test.go`
+- `internal/cli/root_test.go`
+
+Adapter tests use a fake upload client factory and do not require a live
+distributor service.
+
+## Invariants
+
+- Distributor package types do not leak outside the adapter.
+- Only the managed Markdown report is uploaded.
+- The adapter never scans the workspace.
+- Token values are not included in errors, CLI output, metadata, docs, or
+  examples.
+- Destination routing and Markdown-to-HTML transformation belong to
+  distributor, not weatherreporter.

docs/internal/facts.md

@@ -0,0 +1,94 @@
+# Fact Contracts Internals
+
+This document describes the fact contract boundary.
+
+## Purpose
+
+`internal/facts` separates normalized upstream facts collected for a report run
+from conservative report-scoped facts derived from them. The package gives app
+orchestration one place to build reusable facts before module execution.
+
+## Inputs And Outputs
+
+Inputs:
+
+- `weatherdata.Bundle` from the Weather API adapter
+- resolved report definition and valid period
+- report timezone
+- configured daypart definitions
+
+Outputs:
+
+- `facts.CollectedFacts` with normalized source facts plus separate source
+  provenance and warnings. SPC convective outlook source data is carried
+  through when present in the bundle, including upstream geometry and source
+  provenance.
+- `facts.DerivedFacts` with valid-period forecast slices, alert overlaps,
+  report-period SPC convective outlooks and discussions, daily summaries,
+  daypart summaries, and Storm Report window summary
+
+Hourly Report uses the generic valid-period hourly and narrative selection
+for its rolling six-hour window. Its derived facts include precipitation timing
+from the selected hourly periods, alert overlaps for the six-hour period, and
+SPC outlooks/discussions overlapping that period. It does not build daily
+summaries, daypart summaries, or a storm-window summary.
+
+## Boundaries
+
+- This package owns fact assembly and reusable deterministic derivation for a
+  report run.
+- SPC convective outlook derivation selects already-collected outlooks whose
+  half-open valid intervals overlap the resolved report period and retains
+  discussions for represented outlook days.
+- Derived SPC outlook records preserve the collected outlook fields, including
+  geometry, for downstream components that need source-level facts. Prompt
+  modules decide which fields are exposed to Scriptorium.
+- It does not fetch upstream data, build prompt wording, compare prior
+  snapshots, write workflow state, invoke Scriptorium, or define modules.
+
+## Config Fields Used
+
+- `dayparts[].name`
+- `dayparts[].start`
+- `dayparts[].end`
+- `weather_api.timezone`
+
+## External Adapters Used
+
+None directly. Collected facts are built from `weatherdata.Bundle`.
+
+## State Or Manifest Behavior
+
+None. Source provenance and warnings remain data fields for downstream metadata
+and inspection.
+
+## Failure Behavior
+
+- Invalid or missing report valid periods return an error.
+- Invalid timezone names return an error.
+- Missing required hourly forecast data returns the underlying forecast
+  derivation error for reports that require daily summaries.
+- Hourly Report can derive its default module facts without daily or
+  daypart summaries.
+- Missing optional narrative, alert, discussion, daily, or weather story data
+  produces empty or nil derived fields.
+- Missing optional SPC convective outlook data produces a nil collected field.
+- A present SPC convective outlook source with no report-period matches
+  produces non-nil empty derived outlook and discussion slices.
+
+## Tests
+
+Inspect:
+
+- `internal/facts/facts_test.go`
+- `internal/app/app_test.go`
+
+## Invariants
+
+- Collected facts are built once from a fetched bundle.
+- Derived facts are scoped to one resolved report.
+- SPC convective outlook selection uses the resolved report period and the
+  already-collected outlook run.
+- Source provenance and warnings stay separate from ordinary fact fields.
+- Prompt-specific wording and one-off presentation decisions stay outside this
+  package.

docs/internal/forecast-derivation.md

@@ -5,14 +5,14 @@ This document describes deterministic forecast summarization in
 
 ## Purpose
 
-`internal/forecast` converts normalized bundle data into daily and period
+`internal/forecast` converts normalized weather data into daily and period
-summaries used by briefing builders.
+summaries used by fact builders and module builders.
 
 ## Inputs And Outputs
 
 Inputs:
 
-- `forecast.Bundle`
+- `weatherdata.Bundle`
 - local date or resolved report period
 - timezone
 - configured daypart definitions
@@ -43,12 +43,12 @@ configuration.
 
 ## External Adapters Used
 
-None directly. Forecast data arrives through `forecast.Bundle`.
+None directly. Forecast data arrives through `weatherdata.Bundle`.
 
 ## State Or Manifest Behavior
 
 None. Source warnings and provenance from the bundle are carried into summaries
-for later metadata and briefing output.
+for later metadata and module output.
 
 ## Skip And Resume Behavior
 

docs/internal/generatedtext.md

@@ -0,0 +1,140 @@
+# Generated Text Internals
+
+This document describes structured generated-text handling in
+`internal/generatedtext`.
+
+## Purpose
+
+`internal/generatedtext` validates structured text returned for
+generated-text-template reports and builds curated render contexts for
+templates. It also owns the generated-text catalog that connects report
+definitions to validators, render-context builders, schema assets, and template
+assets. The implemented contracts are Daily render context, Today Report,
+Tomorrow Report, and Hourly Report.
+
+## Inputs And Outputs
+
+Inputs:
+
+- raw GeneratedText JSON for Daily, Today, Tomorrow Report, or Hourly Report
+- report metadata from `internal/briefing`
+- a module snapshot from `internal/module`
+- validated generated text
+
+Outputs:
+
+- typed `Daily` generated text
+- typed `Today` generated text
+- typed `Tomorrow` generated text
+- typed `Hourly` generated text
+- normalized stable JSON for validated generated text
+- typed `DailyRenderContext` values for `internal/reporttemplate`
+- typed `TodayRenderContext` values for `internal/reporttemplate`
+- typed `TomorrowRenderContext` values for `internal/reporttemplate`
+- typed `HourlyRenderContext` values for `internal/reporttemplate`
+- generated-text catalog handlers for report definitions that use
+  `generated_text_template`
+
+The Daily generated text JSON accepts the same public fields and validation
+rules as Tomorrow. Its catalog entry is selected through schema ID `daily` and
+template ID `daily`, with prompt ID `weather.daily_generated_text`.
+
+```json
+{
+  "summary": "string",
+  "forecast_discussion": ["string"],
+  "precipitation_timing": "string",
+  "confidence": "string"
+}
+```
+
+The hourly generated text JSON accepts:
+
+```json
+{
+  "summary": "string",
+  "forecast_discussion": "string",
+  "precipitation_timing": "string",
+  "confidence": "string"
+}
+```
+
+`summary` and `forecast_discussion` are required after trimming whitespace.
+`precipitation_timing` and `confidence` are optional and omitted from normalized
+JSON when blank.
+
+The Today generated text JSON accepts the same public fields and validation
+rules as Tomorrow. It is selected by the active Today report definition through
+schema ID `today`, template ID `today`, and prompt ID
+`weather.today_generated_text`:
+
+```json
+{
+  "summary": "string",
+  "forecast_discussion": ["string"],
+  "precipitation_timing": "string",
+  "confidence": "string"
+}
+```
+
+The Tomorrow generated text JSON accepts:
+
+```json
+{
+  "summary": "string",
+  "forecast_discussion": ["string"],
+  "precipitation_timing": "string",
+  "confidence": "string"
+}
+```
+
+`summary` is required after trimming whitespace. `forecast_discussion` must
+contain at least one nonblank paragraph after trimming blank items.
+`precipitation_timing` and `confidence` are optional and omitted from normalized
+JSON when blank.
+
+## Boundaries
+
+- This package owns typed generated-text validation and render-context shaping.
+- It owns generated-text catalog lookup for schema/template combinations.
+- It uses typed module snapshot decoding through `module.StanzaValue`.
+- It does not invoke Scriptorium, write state artifacts, choose report
+  definitions, compare snapshots, or own embedded template/schema files.
+- It renders through `internal/reporttemplate`; embedded asset lookup remains
+  in `internal/reporttemplate`.
+- It does not use a Go JSON Schema dependency; schema enforcement in Go is
+  limited to typed JSON decoding, unknown-field rejection, and required-field
+  checks.
+
+## Failure Behavior
+
+- Malformed generated-text JSON fails with decode context.
+- Unknown generated-text JSON fields fail during decoding.
+- Empty required fields fail after trimming whitespace.
+- Daily, Today, and Tomorrow forecast discussion fails when no nonblank
+  paragraphs remain.
+- Missing optional render-context stanzas become nil module pointers.
+- Invalid render metadata, including missing timezone, missing generated time,
+  or invalid valid period, fails before template rendering.
+- Unsupported generated-text schema IDs, template IDs, or schema/template
+  combinations fail during catalog lookup with report ID context.
+
+## Tests
+
+Inspect:
+
+- `internal/generatedtext/hourly_test.go`
+- `internal/generatedtext/daily_test.go`
+- `internal/generatedtext/today_test.go`
+- `internal/generatedtext/tomorrow_test.go`
+- `internal/generatedtext/catalog_test.go`
+- `internal/generatedtext/render_context_test.go`
+
+## Invariants
+
+- Render contexts are curated structs, not raw prompt-input packages.
+- Required generated text is normalized before downstream artifact storage.
+- Generated-text-template reports must have one catalog entry matching their
+  report definition schema and template IDs.
+- Missing optional weather narrative stanzas produce empty or fallback render
+  context fields rather than forcing raw module data into templates.

docs/internal/module.md

@@ -0,0 +1,280 @@
+# Module Contract Internals
+
+This document describes the module contract in `internal/module`.
+
+## Purpose
+
+`internal/module` defines the shared identifiers and data envelopes used for
+report modules. Report definitions use module IDs for composition, module
+builders produce rich outputs with stanza names, prompt input packages consume
+runtime prompt export values, and Recent Changes compares snapshot stanzas.
+
+## Inputs And Outputs
+
+Inputs:
+
+- ordered `module.ConfigItem` values from report definitions or config
+  overrides
+- `module.Output` values produced by module builders
+
+Outputs:
+
+- stable `module.ID` constants
+- typed option structs for registered modules
+- `module.Snapshot` with schema version `weatherreporter.modules.v1`
+- ordered snapshot outputs with module ID, stanza name, and typed value
+- runtime-only prompt export values on module outputs
+- `module.Output.DataPackageValue`, which selects the prompt export value and
+  falls back to the rich value for hand-built or loaded snapshots
+- typed stanza lookup through `module.StanzaValue`
+
+## Rich Values And Prompt Exports
+
+Each `module.Output` has two value surfaces:
+
+- `Value`: the rich module value used by templates, module snapshots,
+  inspection, Recent Changes, and render contexts.
+- `PromptValue`: the runtime-only prompt export used when building Scriptorium
+  data packages.
+
+`PromptValue` is deliberately excluded from module snapshot JSON. Persisted
+module snapshots keep only the rich `value` field so inspection and
+render-context reconstruction keep the full deterministic template surface.
+
+The `internal/briefing` module registry attaches prompt export values when it
+builds module outputs. Modules without a custom exporter use default
+pass-through behavior, so their prompt value is the same as their rich value.
+Modules that need cleanup own typed prompt export structs near the module
+builder. Current custom prompt exports are:
+
+- `current_conditions`
+- `hourly_forecast`
+- `derived_daypart_summaries`
+
+Custom exporters remove template-only helpers or confusing duplicates from the
+data package without shrinking the rich module structs used by templates.
+Exporter failures include module ID and stanza context.
+
+## Registered Module IDs
+
+The registry recognizes these IDs:
+
+- `metadata`
+- `current_conditions`
+- `narrative_forecast`
+- `hourly_forecast`
+- `derived_daily_summary`
+- `derived_daypart_summaries`
+- `precip_timing`
+- `alert_digest`
+- `spc_convective_outlooks`
+- `area_forecast_discussion`
+- `spc_convective_discussion`
+- `weather_story`
+- `outdoor_windows`
+- `today_planning`
+- `tomorrow_planning`
+- `daily_planning`
+
+Every registered module has a builder. Report composition entries that refer to
+unknown or unimplemented module IDs fail validation instead of being skipped.
+
+## Daily Composition
+
+The default Daily Report module order is:
+
+1. `metadata`
+2. `current_conditions`
+3. `narrative_forecast`
+4. `derived_daily_summary`
+5. `derived_daypart_summaries`
+6. `precip_timing`
+7. `alert_digest`
+8. `spc_convective_outlooks`
+9. `area_forecast_discussion`
+10. `spc_convective_discussion`
+11. `weather_story`
+12. `outdoor_windows`
+13. `daily_planning`
+14. `hourly_forecast`
+
+The embedded Daily template uses selected deterministic fields from these
+module outputs after GeneratedText validation.
+
+## Today Composition
+
+The default Today Report module order is:
+
+1. `metadata`
+2. `current_conditions`
+3. `narrative_forecast`
+4. `derived_daily_summary`
+5. `derived_daypart_summaries`
+6. `precip_timing`
+7. `alert_digest`
+8. `spc_convective_outlooks`
+9. `area_forecast_discussion`
+10. `spc_convective_discussion`
+11. `weather_story`
+12. `outdoor_windows`
+13. `hourly_forecast`
+14. `today_planning`
+
+The embedded Today template uses selected deterministic fields from these
+module outputs after GeneratedText validation.
+
+## Tomorrow Composition
+
+The default Tomorrow Report module order is:
+
+1. `metadata`
+2. `current_conditions`
+3. `narrative_forecast`
+4. `derived_daily_summary`
+5. `derived_daypart_summaries`
+6. `precip_timing`
+7. `alert_digest`
+8. `spc_convective_outlooks`
+9. `area_forecast_discussion`
+10. `spc_convective_discussion`
+11. `weather_story`
+12. `outdoor_windows`
+13. `tomorrow_planning`
+14. `hourly_forecast`
+
+The embedded Tomorrow template uses selected deterministic fields from these
+module outputs after GeneratedText validation.
+
+## Daily Planning
+
+`daily_planning` emits dated daily planning facts for the `daily` report ID.
+Its output stanza is also named `daily_planning`. The module is supported only
+by that report ID and depends on daily summaries for the selected local civil
+day. The default Daily Report composition includes it.
+
+The output uses this shape:
+
+- `morning_readiness`
+- `commute_school_workday_concerns`
+- `overnight_change_watch`
+
+The type is `briefing.DailyPlanningModule`; it is independent from
+`briefing.TomorrowPlanningModule`.
+
+## Today Planning
+
+`today_planning` emits current-day planning facts for Today Report. Its output
+stanza is also named `today_planning`. The module is supported only by Today
+Report and depends on daily and daypart summaries for the current local civil
+day.
+
+The output uses this shape:
+
+- `morning_readiness`
+- `commute_school_workday_concerns`
+- `outdoor_planning`
+- `late_day_change_watch`
+
+The type is `briefing.TodayPlanningModule`; it is independent from
+`briefing.TomorrowPlanningModule`.
+
+## Hourly Composition
+
+The default Hourly Report module order is:
+
+1. `metadata`
+2. `current_conditions`
+3. `hourly_forecast`
+4. `precip_timing`
+5. `alert_digest`
+6. `spc_convective_outlooks`
+7. `area_forecast_discussion`
+8. `spc_convective_discussion`
+9. `weather_story`
+
+Hourly Report does not include daily or daypart summary modules by default.
+Its `area_forecast_discussion` item is configured to include only
+`key_messages` and `short_term`.
+
+## Options
+
+Most modules use an empty options struct, including
+`spc_convective_outlooks` and `spc_convective_discussion`.
+`area_forecast_discussion` accepts:
+
+```yaml
+sections:
+  - product
+  - key_messages
+  - short_term
+  - long_term
+```
+
+An omitted or empty `sections` list includes all available discussion sections.
+Invalid option shapes fail during config normalization or composition
+validation.
+
+## SPC Convective Module Outputs
+
+`spc_convective_outlooks` emits a risk-product stanza with:
+
+- `checked`
+- `as_of`
+- `issued_at`
+- `location_id`
+- `location_name`
+- `outlook_count`
+- `outlooks`
+
+Each outlook entry may include `day`, `outlook_type`, `label`, `label_text`,
+`period_begins`, `period_ends`, `issued_at`, `contains_location`, and
+`image_url`. It omits GeoJSON geometry, source URL, expiration time, and
+severity rank.
+
+`spc_convective_discussion` emits a narrative stanza only when a retained
+report-period categorical outlook has severity rank `3` or higher and matching
+discussion text is available. Its output includes `included_because` and
+`discussions`; each discussion may include `day`, `period_begins`,
+`period_ends`, `headline`, `summary`, `discussion`, and `updated_at`.
+Discussions are included only for SPC days whose retained categorical outlooks
+meet the severity threshold.
+
+## Boundaries
+
+- This package owns module identifiers, config item envelopes, output
+  envelopes, snapshot validation, and typed stanza lookup.
+- It does not define report IDs, execute builders, fetch weather data, derive
+  forecast facts, write state, or invoke Scriptorium.
+
+## State Or Manifest Behavior
+
+`module.Snapshot` values are persisted by `internal/state` as JSON. Snapshot
+validation rejects missing schema version, missing module IDs, missing stanza
+names, duplicate module outputs, and duplicate stanza names while preserving
+output order. Snapshot JSON contains rich module values only; runtime prompt
+export values are not persisted.
+
+## Failure Behavior
+
+- Snapshot construction fails for duplicate module outputs or duplicate stanza
+  names.
+- Typed stanza lookup returns `found=false` for missing stanzas.
+- Typed stanza lookup wraps JSON marshal/decode failures with stanza context.
+
+## Tests
+
+Inspect:
+
+- `internal/module/module_test.go`
+- `internal/briefing/modules_test.go`
+- `internal/report/period_test.go`
+
+## Invariants
+
+- `internal/module` does not import `internal/report`.
+- Module IDs are stable strings.
+- Each emitted module output has exactly one stanza name and one rich typed
+  value.
+- Built module outputs have a data-package value, either from a custom prompt
+  exporter or from default pass-through behavior.
+- Snapshot output order is caller-owned and preserved.

docs/internal/prompt-input.md

@@ -1,40 +1,142 @@
 # Prompt Input Internals
 
-This document describes prompt input data package construction.
+This document describes YAML prompt data package construction in
+`internal/promptinput`.
 
 ## Purpose
 
-`internal/promptinput` converts a structured briefing package and optional
+`internal/promptinput` converts report metadata, ordered module outputs, Recent
-Recent Changes into the `data_package` JSON passed to Scriptorium prompts.
+Changes, and source warnings into the `data_package` file passed to
+Scriptorium.
+
+The persisted data package is YAML with schema version
+`weatherreporter.data_package.v3`. It is separate from the JSON module snapshot
+used for inspection and comparison. Data packages serialize each module
+output's prompt export value, not necessarily the full rich module value saved
+in the module snapshot.
 
 ## Inputs And Outputs
 
 Inputs:
 
-- `briefing.Package`
+- report metadata from app/state orchestration
+- `module.Snapshot`
 - optional `[]changes.Change`
 
 Outputs:
 
-- `promptinput.Package` containing schema version, RunID, report metadata,
+- `promptinput.Package` with schema version, RunID, report metadata, named
-  briefing content, Recent Changes, and source warnings. Briefing content
+  module stanzas grouped for prompt presentation, Recent Changes, and source
-  includes configured location context, current conditions when available,
+  warnings
-  discussion key messages, and short/long-term AFD narratives when the Weather
+- YAML bytes from `promptinput.MarshalYAML`
-  API provides them.
+- YAML file written atomically by `promptinput.Save`
-- report metadata includes `currentLocalDate`, the generation date formatted as
+
-  `YYYY-MM-DD` in the effective report timezone.
+The YAML shape includes:
-- optional JSON file written by `promptinput.Save`
+
+```yaml
+schema_version: weatherreporter.data_package.v3
+run_id: <run_id>
+report:
+  id: <report_id>
+  prompt_id: <prompt_id>
+briefing:
+  metadata: {}
+  applicable_risk_products:
+    alert_digest: {}
+    spc_convective_outlooks: {}
+  derived_summaries:
+    derived_daily_summary: {}
+    derived_daypart_summaries: {}
+    precip_timing: {}
+    outdoor_windows: {}
+  narrative_products:
+    narrative_forecast: {}
+    area_forecast_discussion: {}
+    spc_convective_discussion: {}
+    weather_story: {}
+  raw_data:
+    current_conditions: {}
+    hourly_forecast: {}
+recent_changes:
+  items: []
+```
+
+The `briefing` mapping keeps `metadata` directly under `briefing` and groups
+weather module stanzas under prompt-facing categories. This grouping is a YAML
+presentation concern only: module snapshots remain flat, and loaded
+`promptinput.Package` values expose flat stanza names in `Briefing.Values`.
+Within each category, stanza order follows the module snapshot output order.
+Prompt-facing module intervals use local `period_begins` and `period_ends`
+labels; canonical report metadata and source timestamps remain structured
+timestamps where applicable.
+
+## Module Export Boundary
+
+Data packages are curated prompt inputs. They are not full template render
+contexts and should not be treated as a dump of every field available to Go
+templates.
+
+When module outputs are built by `internal/briefing`, the registry attaches a
+runtime prompt export value. `internal/promptinput` serializes
+`output.DataPackageValue()` for each stanza. That helper prefers the runtime
+prompt export and falls back to the rich `Value` when no prompt export is set,
+which keeps loaded snapshots and hand-built tests usable.
+
+Modules without custom export policy use pass-through behavior. Modules with
+custom exports currently include:
+
+- `current_conditions`: omits lower-case condition text and duplicate
+  wind-direction text.
+- `hourly_forecast`: omits hour labels, lower-case description text, and the
+  template precipitation-mention helper while keeping forecast facts.
+- `derived_daypart_summaries`: omits deterministic sentence-construction
+  helpers while keeping daypart period, condition, temperature trend,
+  precipitation, wind, notable-condition, hazard, and alert-relevance facts.
+
+The rich module snapshot and generated-template render context still contain
+the helper fields used by deterministic Markdown templates.
+
+Daily Report, Today Report, Tomorrow Report, and Hourly Report module snapshots
+use the same package schema and categories when converted into prompt input.
+The default hourly module list places
+`precip_timing` under `derived_summaries`, alert and SPC outlooks under
+`applicable_risk_products`, AFD/SPC discussion/weather story under
+`narrative_products`, and current/hourly data under `raw_data`. It does not
+include civil-day summary stanzas. Generated-text and render context artifacts
+are produced later in app orchestration and are not part of the YAML data
+package.
+
+The default Daily, Today, and Tomorrow module lists include civil-day summary
+stanzas, planning stanzas, and `hourly_forecast` in the data package before
+structured GeneratedText is requested from Scriptorium. Daily uses
+`daily_planning`, Today uses `today_planning`, and Tomorrow uses
+`tomorrow_planning`.
+
+Current categories are:
+
+- `applicable_risk_products`: location-applicable alerts, warnings, outlooks,
+  and similar risk products. Current stanzas include `alert_digest` and
+  `spc_convective_outlooks`.
+- `derived_summaries`: deterministic summaries and calculated report facts.
+- `narrative_products`: official narrative text products and forecast stories.
+  Current stanzas include `narrative_forecast`,
+  `area_forecast_discussion`, `spc_convective_discussion`, and
+  `weather_story`.
+- `raw_data`: minimally transformed underlying weather data.
 
 ## Boundaries
 
-- This package owns the prompt input schema and validation.
+- This package owns prompt package schema, YAML marshaling, YAML loading, and
-- It does not fetch weather data, derive forecast summaries, find prior
+  validation.
-  snapshots, compare changes, or invoke Scriptorium.
+- It does not fetch weather data, derive forecast summaries, execute modules,
+  choose module prompt export shapes, find prior snapshots, compare changes,
+  choose artifact paths, or invoke Scriptorium.
 
 ## Config Fields Used
 
-None directly. Config-derived values, including timezone and prompt location
+None directly. Config-derived values such as timezone, units, and prompt
-context, are already present in briefing metadata before this package runs.
+location are already present in report metadata and module stanzas before this
+package runs.
 
 ## External Adapters Used
 
@@ -42,7 +144,7 @@ None.
 
 ## State Or Manifest Behavior
 
-`promptinput.Save` writes JSON atomically. Managed workspace paths are owned by
+`promptinput.Save` writes YAML atomically. Managed workspace paths are owned by
 `internal/state`.
 
 ## Skip And Resume Behavior
@@ -51,9 +153,10 @@ None. Recent Changes is always present as an `items` list and may be empty.
 
 ## Failure Behavior
 
-Validation fails before render preflight when required top-level or briefing
+Validation fails before render preflight when required top-level fields are
-metadata fields are missing or inconsistent, or when no report content is
+missing or inconsistent, when the valid period is invalid, or when no module
-present. Save failures include filesystem operation and path context.
+stanzas are present. Save failures include filesystem operation and path
+context.
 
 ## Tests
 
@@ -64,6 +167,11 @@ Inspect:
 
 ## Invariants
 
-- Scriptorium receives structured `data_package` JSON.
+- Scriptorium receives structured YAML through `--input data_package=<path>`.
-- Briefing metadata and top-level report metadata must agree.
+- Module stanza order is deterministic within each prompt-facing category.
-- Recent Changes are not inferred from rendered report text.
+- Every non-metadata module stanza has exactly one prompt-input category.
+- Data-package stanzas use curated module prompt exports when present and rich
+  values only as pass-through or fallback values.
+- Data packages are narrower than generated-template render contexts.
+- Recent Changes are provided by `internal/changes`; this package does not
+  infer changes from rendered report text.

docs/internal/report-registry.md

@@ -6,9 +6,10 @@ membership, output naming, artifact grouping, and comparison declarations in
 
 ## Purpose
 
-`internal/report` is the canonical source for report definitions. App, state,
+`internal/report` is the canonical source for report definitions, public
-briefing, and CLI wiring consume resolved definitions instead of owning report
+command names, config-key aliases, and batch command names. App, config, state,
-identity policy themselves.
+module building, and CLI wiring consume report-owned helpers and resolved
+definitions instead of owning report identity policy themselves.
 
 ## Definition Fields
 
@@ -16,6 +17,7 @@ Each report definition declares:
 
 - report ID and display name
 - Scriptorium prompt ID
+- generation mode
 - valid-period resolver
 - comparison strategy
 - managed artifact group
@@ -23,24 +25,48 @@ Each report definition declares:
 - generated-report eligibility
 - prior-report compatibility list
 - morning or evening batch membership
+- default ordered module composition
 
-## Implemented Reports
+Report-owned helpers map public command names and config keys to report IDs.
+The generate command names are `daily`, `today`, `tomorrow`, `hourly`,
+`three-day`, `weekend`, and `storm`. Config keys also accept selected
+underscore and descriptive aliases such as `three_day_outlook`,
+`weekend_outlook`, and `storm_report`.
 
-| Report | ID | Prompt | Artifact group | Batch copy | Prior compatibility |
+`daily` resolves to the dated Daily Report ID `daily`. `today` resolves to the
-| --- | --- | --- | --- | --- | --- |
+independent Today report ID `today`. `reports.today` is not an alias for
-| Daily Today | `daily_today` | `weather.daily_report` | `daily` | `daily.md` | Daily Today, Daily Tomorrow |
+`reports.daily`, and retired report keys are not supported.
-| Daily Tomorrow | `daily_tomorrow` | `weather.daily_report` | `daily` | `tomorrow.md` | Daily Today, Daily Tomorrow |
-| 3-Day Outlook | `three_day` | `weather.three_day_outlook` | `three-day` | `three-day.md` | 3-Day Outlook |
-| Weekend Outlook | `weekend` | `weather.weekend_outlook` | `weekend` | `weekend.md` | Weekend Outlook |
-| Storm Report | `storm` | `weather.storm_report` | `storm` | `storm.md` | Storm Report |
 
-All implemented report definitions are eligible for generation.
+Markdown report definitions use the `scriptorium_markdown` generation mode.
+Their template and structured-text schema identifiers are empty. Daily Report,
+Today Report, Tomorrow Report, and Hourly Report declare
+`generated_text_template`; the app uses their template and schema identifiers
+to validate generated text and render embedded Markdown templates.
+
+## Reports
+
+| Report | ID | Prompt | Generation mode | Artifact group | Batch copy | Prior compatibility |
+| --- | --- | --- | --- | --- | --- | --- |
+| Daily Report | `daily` | `weather.daily_generated_text` | `generated_text_template` | `daily` | `daily.md` | Daily Report |
+| Today Report | `today` | `weather.today_generated_text` | `generated_text_template` | `today` | `today.md` | Today Report |
+| Tomorrow Report | `tomorrow` | `weather.tomorrow_generated_text` | `generated_text_template` | `tomorrow` | `tomorrow.md` | Tomorrow Report |
+| Hourly Report | `hourly` | `weather.hourly_generated_text` | `generated_text_template` | `hourly` | `hourly.md` | Hourly Report |
+| 3-Day Outlook | `three_day` | `weather.three_day_outlook` | `scriptorium_markdown` | `three-day` | `three-day.md` | 3-Day Outlook |
+| Weekend Outlook | `weekend` | `weather.weekend_outlook` | `scriptorium_markdown` | `weekend` | `weekend.md` | Weekend Outlook |
+| Storm Report | `storm` | `weather.storm_report` | `scriptorium_markdown` | `storm` | `storm.md` | Storm Report |
+
+All report definitions are eligible for generation.
 
 ## Valid Periods
 
-- Daily Today covers the selected local civil day, or the current local civil
+- Daily Report covers the selected local civil day and requires an explicit
+  date.
+- Today Report covers the selected local civil day, or the current local civil
   day when no date override is supplied.
-- Daily Tomorrow covers the next local civil day from generation time.
+- Tomorrow Report covers the next local civil day from generation time.
+- Hourly Report covers the half-open six-hour period from generation time in
+  the effective report timezone. The duration is an internal report constant,
+  not a configuration field.
 - 3-Day Outlook covers the interval from generation time through local midnight
   three days later.
 - Weekend Outlook covers the upcoming weekend window and is not scheduled for
@@ -53,23 +79,33 @@ must be after start time.
 
 ## Boundaries
 
-`internal/report` defines report metadata and time coverage. It does not fetch
+`internal/report` defines report metadata, public report names, batch command
-weather data, build briefings, compare briefing contents, write state, parse CLI
+names, and time coverage. It does not fetch weather data, build module values,
-flags, or invoke Scriptorium.
+compare snapshot contents, write state, parse CLI flags, or invoke Scriptorium.
 
-The CLI owns public command names. The app maps those command names to report
+The CLI parses flags and command structure, then uses report-owned helpers for
-IDs, then uses the registry for report policy.
+report and batch command names. Config loading uses report-owned helpers for
+report override keys.
 
 ## Config Fields Used
 
 The app supplies `weather_api.timezone` as a loaded `time.Location`. Batch
-output path copying uses batch output names from report definitions.
+output path copying uses batch output names from report definitions. Report
+module overrides can use short keys such as `daily`, `today`, `tomorrow`, and
+`hourly`, or descriptive names such as `three_day_outlook`.
+
+## Batch Membership
+
+Morning batches include Today Report, 3-Day Outlook, and Weekend Outlook
+except on Sunday. Evening batches include Tomorrow Report. Daily Report and
+Hourly Report are not part of a scheduled batch.
 
 ## State And App Usage
 
 - State paths use `ArtifactGroup`.
 - Batch output copies use `BatchOutputName`.
 - Generation checks `Generated`.
+- Module composition defaults use `Modules`.
 - Prior lookup checks `CompatiblePriorIDs` and the comparison strategy.
 - RunIDs include the resolved report ID.
 
@@ -90,8 +126,12 @@ Inspect:
 ## Invariants
 
 - Report selection goes through the registry.
-- Daily Today and Daily Tomorrow both use `weather.daily_report`.
+- Public command names, config-key aliases, and batch command names are owned
+  by `internal/report`.
+- Direct Markdown reports have empty template and generated-text schema IDs.
+- Generated-text-template reports declare prompt, template, and schema IDs in
+  their report definition.
 - Valid periods are half-open intervals independent of rendered report text.
 - Artifact grouping, batch output filenames, generated-report eligibility,
-  comparison compatibility, and comparison strategy are declared by report
+  default module composition, comparison compatibility, and comparison strategy
-  definition.
+  are declared by report definition.

docs/internal/reporttemplate.md

@@ -0,0 +1,113 @@
+# Report Template Internals
+
+This document describes embedded Markdown templates and GeneratedText schemas
+in `internal/reporttemplate`.
+
+## Purpose
+
+`internal/reporttemplate` owns repository-native report templates and companion
+GeneratedText JSON schemas. The implemented template assets are Daily, Today,
+Tomorrow, and Hourly.
+
+The package embeds assets from:
+
+- `internal/reporttemplate/templates/*.md.tmpl`
+- `internal/reporttemplate/schemas/*.schema.json`
+
+Generated-text prompt source files live under
+`internal/reporttemplate/prompts/`. They are repository assets for prompt
+registration, not embedded lookup APIs.
+
+## Inputs And Outputs
+
+Inputs:
+
+- template ID from a report definition
+- typed render context built by `internal/generatedtext`
+
+Outputs:
+
+- template source for inspection and tests
+- GeneratedText schema bytes for prompt/schema configuration
+- rendered Markdown bytes for app orchestration to persist
+
+The implemented template IDs are `daily`, `today`, `tomorrow`, and `hourly`.
+The implemented schema IDs are also `daily`, `today`, `tomorrow`, and
+`hourly`, backed by matching `*.generated_text.schema.json` files.
+
+Generated-text prompt sources are maintained under
+`internal/reporttemplate/prompts/`, including Daily's
+`daily.generated_text.md` source for prompt ID `weather.daily_generated_text`.
+
+## Boundaries
+
+This package owns embedded asset lookup, Go template parsing, and Markdown
+template execution. It does not fetch weather data, build module outputs,
+validate GeneratedText, construct render contexts, choose report definitions,
+write artifacts, invoke Scriptorium, or notify distributor.
+
+GeneratedText validation is owned by `internal/generatedtext`. App
+orchestration uses `internal/generatedtext` catalog lookup to connect
+`internal/report` definition schema/template IDs to the matching validator,
+render-context builder, and embedded assets.
+
+## Template Contracts
+
+Daily, Today, Tomorrow, and Hourly rendering use typed render contexts with:
+
+- report metadata labels such as title, location, valid period, and generation
+  time
+- validated GeneratedText prose slots
+- deterministic labels derived from module outputs, including current
+  conditions, hourly forecast rows, precipitation timing, alerts, SPC outlooks,
+  forecast discussion, SPC discussion, and weather story
+
+Daily, Today, and Tomorrow additionally expose forecast-date labels, ordered
+daypart forecast rows, daily/daypart summaries, planning facts, and a
+multi-paragraph forecast discussion generated-text slot. The ordered daypart
+slice is built in Go so templates do not range over maps.
+
+The Daily template asset uses the same Markdown structure as Tomorrow's
+template and renders from `generatedtext.DailyRenderContext`.
+
+Templates use `text/template` with `missingkey=error`, so missing context fields
+fail rendering instead of producing incomplete Markdown.
+
+## Schema Contract
+
+The GeneratedText schemas describe the structured prose Scriptorium is expected
+to write for each generated-text prompt. Hourly requires:
+
+- `summary`
+- `forecast_discussion`
+
+Daily, Today, and Tomorrow require `summary` and a nonempty
+`forecast_discussion` array. All generated-text schemas allow optional
+`precipitation_timing` and `confidence`, and reject additional properties.
+Weather truth remains in module outputs; GeneratedText is limited to prose
+slots consumed by the template.
+
+## Failure Behavior
+
+- Unknown template IDs return actionable lookup errors.
+- Unknown schema IDs return actionable lookup errors.
+- Template parse errors include the template ID.
+- Template execution errors include the template ID and usually identify the
+  missing context field.
+
+## Tests
+
+Inspect:
+
+- `internal/reporttemplate/reporttemplate_test.go`
+- `internal/generatedtext/render_context_test.go`
+- `internal/app/app_test.go`
+- `internal/cli/root_test.go`
+
+## Invariants
+
+- Embedded templates and schemas live as separate files, not inline Go strings.
+- Report definitions select templates by ID.
+- Templates render from curated render contexts, not raw data packages.
+- GeneratedText schemas describe LLM prose slots, not deterministic weather
+  facts.

docs/internal/scriptorium-adapter.md

@@ -6,17 +6,18 @@ This document describes the subprocess adapter in
 ## Purpose
 
 The adapter runs `scriptorium render` for prompt preflight and `scriptorium run`
-for Markdown report generation. It isolates subprocess execution, argv
+for Markdown report generation or structured generated-text output. It isolates
-construction, timeout handling, output capture, and exit-code interpretation
+subprocess execution, argv construction, timeout handling, output capture, and
-from app and domain packages.
+exit-code interpretation from app and domain packages.
 
 ## Inputs And Outputs
 
 Inputs:
 
 - prompt ID
-- prompt input data package path
+- YAML prompt input data package path
 - report output path for `run`
+- raw generated-text output path for structured `run`
 - configured binary, config path, profile, timeout, and extra arguments
 - context for cancellation
 
@@ -27,6 +28,7 @@ Outputs:
 - truncation flags for captured output
 - exit code
 - report output path for `run`
+- raw generated-text output path for structured `run`
 
 ## Boundaries
 
@@ -34,9 +36,9 @@ Outputs:
 subprocess execution. It does not choose report types, build prompt input,
 fetch weather data, decide workflow order, or persist workflow metadata.
 
-The adapter exposes request and result structs for render and run operations.
+The adapter exposes request and result structs for render, Markdown run, and
-State persistence uses a state-owned preflight artifact shape; app
+structured generated-text run operations. State persistence uses state-owned
-orchestration converts render results before saving.
+artifact shapes; app orchestration converts adapter results before saving.
 
 ## Config Fields Used
 
@@ -60,6 +62,12 @@ Report generation argv starts with:
 scriptorium run --prompt <prompt_id> --input data_package=<path> --out <path>
 ```
 
+Structured generated-text argv uses the same `scriptorium run` form, with the
+`--out` value set to the raw generated-text JSON artifact path. The adapter
+does not add `--format`, schema path, or JSON Schema flags for structured
+generation; Scriptorium selects the structured output schema from prompt
+configuration.
+
 Configured `--config` and `--profile` flags are inserted after the subcommand
 and before prompt-specific arguments. Extra arguments are appended after the
 built-in arguments.
@@ -67,8 +75,8 @@ built-in arguments.
 ## Execution Behavior
 
 The adapter runs commands without shell interpolation. The same private
-execution path is used by render and run after command-specific request
+execution path is used by render, Markdown run, and structured run after
-validation and argv construction.
+command-specific request validation and argv construction.
 
 When `scriptorium.timeout` is greater than zero, each subprocess call uses a
 context with that timeout. Stdout and stderr are captured separately, capped at
@@ -81,8 +89,8 @@ context with that timeout. Stdout and stderr are captured separately, capped at
 - Missing run output path returns an error before subprocess execution.
 - Subprocess start errors, context cancellation, and timeouts are wrapped with
   operation context by the caller-facing method.
-- Nonzero render and run exits return the captured result plus an error
+- Nonzero render, Markdown run, and structured run exits return the captured
-  containing the exit code and stderr.
+  result plus an error containing the exit code and stderr.
 
 ## Tests
 
@@ -96,5 +104,7 @@ Inspect:
 
 - No shell interpolation is used.
 - The Scriptorium input name is `data_package`.
-- Render and run preserve command-specific result structs.
+- The file at the data package path is YAML produced by `internal/promptinput`.
+- Render, Markdown run, and structured run preserve command-specific result
+  structs.
 - Scriptorium-specific flags stay inside adapter and config boundaries.

docs/internal/state.md

@@ -13,28 +13,34 @@ Inputs:
 
 - workspace configuration
 - resolved report definition and valid period
-- briefing package
+- module snapshot
 - prompt input data package
 - preflight artifact
+- generated-text raw, run-result, validated text, and render-context artifacts
 - rendered report path preparation request
 - RunID for inspection lookups
 
 Outputs:
 
-- briefing snapshot JSON path
+- module snapshot JSON path
-- prompt input data package JSON path
+- prompt input data package YAML path
 - render preflight JSON path
+- generated-text raw JSON path
+- generated-text run-result JSON path
+- validated generated-text JSON path
+- render context JSON path
 - managed Markdown report path
 - metadata JSON path
 - prior comparable snapshot metadata
-- loaded briefing or data package
+- loaded module snapshot, data package, generated text, generated-text run
+  result, or render context
 - recent report records for inspection
 
 ## Boundaries
 
 `internal/state` owns local filesystem layout, path validation, durable writes,
 metadata reads, prior lookup, and report listing. It does not fetch weather
-data, derive forecasts, build prompt input content, compare briefing contents,
+data, derive forecasts, build prompt input content, compare module contents,
 invoke Scriptorium, import adapter result types, or parse CLI flags.
 
 Preflight persistence uses the state-owned `PreflightArtifact` shape. The app
@@ -47,6 +53,7 @@ converts adapter render results into that shape before saving.
 - `workspace.reports_dir`
 - `workspace.data_packages_dir`
 - `workspace.preflight_dir`
+- `workspace.notifications_dir`
 
 Workspace subdirectories must be relative paths that stay under
 `workspace.root`.
@@ -54,20 +61,29 @@ Workspace subdirectories must be relative paths that stay under
 ## Managed Layout
 
 Paths are derived from the resolved report definition's artifact group, the
-valid-period start date for JSON artifacts, and the RunID.
+valid-period start date for dated artifacts, and the RunID.
 
 ```text
 <workspace.root>/
-  snapshots/<artifact_group>/<YYYY-MM-DD>/<run_id>.briefing.json
+  snapshots/<artifact_group>/<YYYY-MM-DD>/<run_id>.modules.json
   snapshots/<artifact_group>/<YYYY-MM-DD>/<run_id>.metadata.json
-  data-packages/<artifact_group>/<YYYY-MM-DD>/<run_id>.data_package.json
+  snapshots/<artifact_group>/<YYYY-MM-DD>/<run_id>.generated_text.raw.json
+  snapshots/<artifact_group>/<YYYY-MM-DD>/<run_id>.generated_text.run.json
+  snapshots/<artifact_group>/<YYYY-MM-DD>/<run_id>.generated_text.json
+  snapshots/<artifact_group>/<YYYY-MM-DD>/<run_id>.render_context.json
+  data-packages/<artifact_group>/<YYYY-MM-DD>/<run_id>.data_package.yaml
   preflight/<artifact_group>/<YYYY-MM-DD>/<run_id>.render.json
+  notifications/<artifact_group>/<YYYY-MM-DD>/<run_id>.distributor.json
   reports/<artifact_group>/<run_id>.md
 ```
 
-Metadata is stored beside briefing snapshots and links the briefing, data
+Metadata is stored beside module snapshots and links the module snapshot, data
-package, preflight, report paths, and configured prompt location. Report
+package, preflight, report paths, notification path when attempted, and
-listing walks metadata files under the snapshots directory.
+configured prompt location. For generated-text-template reports, metadata also
+records the generated text schema ID and links the raw generated text,
+Scriptorium run result, validated generated text, and render context artifacts.
+Markdown-report metadata omits those generated-text fields. Report listing
+walks metadata files under the snapshots directory.
 
 ## Prior Lookup
 
@@ -75,24 +91,37 @@ Prior snapshot lookup reads stored metadata through the shared lookup path and
 selects the latest earlier snapshot whose report ID is compatible with the
 current report definition.
 
-- Daily Today and Daily Tomorrow are compatible with each other for the same
+- Daily Report compares with prior Daily Report snapshots for the same valid
+  local date.
+- Today Report compares with prior Today Report snapshots for the same valid
+  local date.
+- Tomorrow Report compares with prior Tomorrow Report snapshots for the same
   valid local date.
 - 3-Day Outlook compares with prior 3-Day snapshots for the same valid local
   date.
 - Weekend Outlook compares with prior Weekend snapshots for the same weekend
   window.
-- Storm Report currently has no prior lookup because explicit event-window
+- Hourly Report uses the rolling-window comparison strategy and currently
-  comparison is not searched by the filesystem store.
+  returns no prior snapshot from filesystem lookup.
+- Storm Report has no prior lookup because explicit event-window comparison is
+  not searched by the filesystem store.
 
 ## Writes And Inspection
 
-Durable JSON writes use shared atomic file helpers. Managed Markdown reports are
+Durable JSON writes use shared atomic file helpers. Generated-text raw and
-prepared by creating their parent directory; Scriptorium writes the report body
+validated JSON artifacts are written atomically as bytes; generated-text run
-to the prepared path. Extra Markdown copies are handled by app orchestration.
+result and render context artifacts are written atomically as JSON. Managed
+Markdown reports are prepared by creating their parent directory; Scriptorium
+writes the report body to the prepared path. Extra Markdown copies are handled
+by app orchestration. Distributor notification debug artifacts are written
+atomically when notification is attempted and include rendered distributor
+pipeline ID, bundle ID, idempotency key, bundle paths, upload status, latest
+run status, and redacted errors.
 
-Inspection helpers read existing metadata, briefing, and data package files.
+Inspection helpers read existing metadata, module snapshot, data package,
-Missing metadata directories return no inspection records or no prior snapshot
+generated text, generated-text run result, and render context files. Missing
-rather than creating state.
+metadata directories return no inspection records or no prior snapshot rather
+than creating state.
 
 ## Failure Behavior
 
@@ -114,4 +143,6 @@ Inspect:
 - Managed paths stay under the configured workspace root.
 - Artifact grouping comes from report definitions.
 - Metadata links artifacts produced for a run.
+- Generated-text artifacts live under the snapshots tree beside module
+  snapshots and metadata.
 - Prior lookup is based on structured metadata, not rendered report text.

docs/internal/weather-data.md

@@ -1,13 +1,13 @@
 # Weather Data Internals
 
-This document describes Weather API ingestion into `forecast.Bundle`.
+This document describes Weather API ingestion into `weatherdata.Bundle`.
 
 ## Purpose
 
-`internal/adapters/weatherapi` fetches normalized weather data from one
+`internal/adapters/weatherapi` fetches normalized weather data from the
-configured Weather API endpoint and assembles the bundle consumed by forecast
+configured Weather API and assembles the bundle consumed by forecast derivation
-derivation and briefing builders. Briefing builders expose normalized current
+and module builders. Module builders expose normalized current conditions and
-conditions as prompt context when `/conditions/current` is available.
+weather story context when those sources are available.
 
 ## Inputs And Outputs
 
@@ -19,17 +19,17 @@ Inputs:
 
 Outputs:
 
-- `forecast.Bundle` with observation, current conditions, hourly forecast,
+- `weatherdata.Bundle` with observation, current conditions, hourly forecast,
-  narrative forecast, active alerts, discussion, source records, and source
+  narrative forecast, active alerts, discussion, latest weather story, source
-  warnings
+  records, source warnings, and typed SPC convective outlook data when that
-- stub source records for daily forecast and weather story source slots
+  optional source is available
 - optional saved bundle JSON through app fetch helpers
 
 ## Boundaries
 
 - The adapter owns HTTP calls, response-envelope handling, source hashing, and
   decoding into internal bundle types.
-- It does not derive dayparts, resolve report periods, build briefings, compare
+- It does not derive dayparts, resolve report periods, build module values, compare
   snapshots, write report state, or invoke Scriptorium.
 
 ## Config Fields Used
@@ -55,9 +55,19 @@ contract used by this project.
 The adapter records source name, endpoint, query, fetch time, source timestamps
 when available, SHA-256 hash over compact raw `data` JSON, missing status, and
 source warnings. Successful `data: null` responses from `/alerts/active`
-represent a checked empty active-alert list, not a missing source.
+represent a checked empty active-alert list, not a missing source. Successful
+non-null `/outlooks/convective` responses with empty outlook and discussion
+arrays represent checked empty outlook data.
 `app.FetchAndSaveBundle` can write bundle JSON atomically for inspection.
 
+SPC convective outlook data is stored on
+`weatherdata.Bundle.SPCConvectiveOutlooks`. The collected run keeps upstream
+run metadata, location identifiers, ordered outlook records, discussion
+records, and each outlook's raw GeoJSON geometry. Source provenance for this
+payload uses the `spc_convective_outlooks` source name, endpoint
+`/outlooks/convective`, the query sent by the adapter, timestamps, and a hash
+of the raw `data` object.
+
 ## Skip And Resume Behavior
 
 No resume behavior. Optional missing or malformed sources may be omitted,
@@ -70,9 +80,11 @@ data is required and cannot be skipped.
 - HTTP errors, response read failures, and envelope decode failures include
   endpoint context.
 - Missing hourly data or hourly forecasts with no periods fail bundle fetch.
-- Optional and stub sources follow missing-source policy.
+- Optional sources follow missing-source policy.
 - Explicit `data: null` from `/alerts/active` produces an empty, non-missing
   alert run.
+- Explicit `data: null` from `/outlooks/convective` follows optional
+  missing-source policy.
 
 ## Tests
 

docs/operations.md

@@ -1,40 +1,61 @@
 # Weatherreporter Operations
 
 This guide covers normal operation, generated artifacts, inspection, recovery,
-and current operational caveats. For symptom-specific diagnosis, see
+and operational caveats. For symptom-specific diagnosis, see
 [Troubleshooting](troubleshooting.md).
 
 ## Normal Workflow
 
-Implemented generation commands:
+Generation commands:
 
 ```text
 weatherreporter generate daily --date 2026-05-29
+weatherreporter generate today
 weatherreporter generate tomorrow
+weatherreporter generate hourly
 weatherreporter generate three-day
 weatherreporter generate weekend
 weatherreporter generate storm --start 2026-05-29T18:00 --end 2026-05-30T06:00
 ```
 
-Each command resolves a report period, fetches a Weather API bundle, builds a
+Generation commands resolve a report period, fetch a Weather API bundle, build
-briefing, builds a prompt input data package, runs `scriptorium render`, runs
+a rich JSON module snapshot, build a curated YAML prompt input data package, run
-`scriptorium run`, and writes managed artifacts under the configured workspace.
+`scriptorium render`, and write managed artifacts under the configured
-`--out PATH` writes an extra Markdown copy for the current generated report.
+workspace. Markdown-path reports then run `scriptorium run` directly to the
+managed Markdown report path.
 
-Implemented batch commands:
+`generate daily`, `generate today`, `generate tomorrow`, and `generate hourly`
+use the generated-text-template workflow. They run structured `scriptorium run`
+to raw GeneratedText JSON, validate the structured text, save a render context,
+and render the managed Markdown report from embedded templates. `generate
+daily` requires `--date YYYY-MM-DD` for the selected local civil day.
+`generate today` covers the selected or current local civil day. `generate
+hourly` covers the six-hour rolling period from generation time in the
+effective report timezone and is not part of scheduled morning or evening
+batches.
+
+When distributor notification is enabled, weatherreporter uploads the managed
+Markdown report after report rendering succeeds and final metadata is saved.
+`--out PATH` writes an extra Markdown copy for generated reports; it is not used
+as the distributor upload source.
+
+Batch commands:
 
 ```text
 weatherreporter run morning
 weatherreporter run evening
 ```
 
-`run morning` generates Daily Today and the 3-Day Outlook, plus Weekend Outlook
+`run morning` generates Today Report and the 3-Day Outlook, plus Weekend Outlook
-except on Sunday. `run evening` generates the Tomorrow Planning Brief. Batch
+except on Sunday. `run evening` generates the Tomorrow Report. Batch
 commands print a JSON summary to stdout, write compact per-report status lines
 to stderr, continue independent reports after one report fails, and return
-nonzero when any report failed. `--out-dir PATH` writes extra Markdown copies
+nonzero when any report failed. When notification is configured, the summary and
-using report default filenames such as `daily.md`, `three-day.md`,
+status lines include notification status, accepted distributor run ID, or
-`weekend.md`, and `tomorrow.md`.
+notification error fields for each attempted report. `--out-dir PATH` writes
+extra Markdown copies using report default filenames such as `today.md`,
+`three-day.md`, `weekend.md`, and `tomorrow.md`; these copies are not used as
+distributor upload sources.
 
 ## Filesystem Layout
 
@@ -45,53 +66,127 @@ workspace/
   snapshots/
     daily/
       YYYY-MM-DD/
-        <run_id>.briefing.json
+        <run_id>.modules.json
         <run_id>.metadata.json
+        <run_id>.generated_text.raw.json
+        <run_id>.generated_text.run.json
+        <run_id>.generated_text.json
+        <run_id>.render_context.json
+    today/
+      YYYY-MM-DD/
+        <run_id>.modules.json
+        <run_id>.metadata.json
+        <run_id>.generated_text.raw.json
+        <run_id>.generated_text.run.json
+        <run_id>.generated_text.json
+        <run_id>.render_context.json
     three-day/
       YYYY-MM-DD/
-        <run_id>.briefing.json
+        <run_id>.modules.json
         <run_id>.metadata.json
     weekend/
       YYYY-MM-DD/
-        <run_id>.briefing.json
+        <run_id>.modules.json
         <run_id>.metadata.json
+    hourly/
+      YYYY-MM-DD/
+        <run_id>.modules.json
+        <run_id>.metadata.json
+        <run_id>.generated_text.raw.json
+        <run_id>.generated_text.run.json
+        <run_id>.generated_text.json
+        <run_id>.render_context.json
+    tomorrow/
+      YYYY-MM-DD/
+        <run_id>.modules.json
+        <run_id>.metadata.json
+        <run_id>.generated_text.raw.json
+        <run_id>.generated_text.run.json
+        <run_id>.generated_text.json
+        <run_id>.render_context.json
     storm/
       YYYY-MM-DD/
-        <run_id>.briefing.json
+        <run_id>.modules.json
         <run_id>.metadata.json
   data-packages/
     daily/
       YYYY-MM-DD/
-        <run_id>.data_package.json
+        <run_id>.data_package.yaml
+    today/
+      YYYY-MM-DD/
+        <run_id>.data_package.yaml
     three-day/
       YYYY-MM-DD/
-        <run_id>.data_package.json
+        <run_id>.data_package.yaml
     weekend/
       YYYY-MM-DD/
-        <run_id>.data_package.json
+        <run_id>.data_package.yaml
+    hourly/
+      YYYY-MM-DD/
+        <run_id>.data_package.yaml
+    tomorrow/
+      YYYY-MM-DD/
+        <run_id>.data_package.yaml
     storm/
       YYYY-MM-DD/
-        <run_id>.data_package.json
+        <run_id>.data_package.yaml
   preflight/
     daily/
       YYYY-MM-DD/
         <run_id>.render.json
+    today/
+      YYYY-MM-DD/
+        <run_id>.render.json
     three-day/
       YYYY-MM-DD/
         <run_id>.render.json
     weekend/
       YYYY-MM-DD/
         <run_id>.render.json
+    hourly/
+      YYYY-MM-DD/
+        <run_id>.render.json
+    tomorrow/
+      YYYY-MM-DD/
+        <run_id>.render.json
     storm/
       YYYY-MM-DD/
         <run_id>.render.json
+  notifications/
+    daily/
+      YYYY-MM-DD/
+        <run_id>.distributor.json
+    today/
+      YYYY-MM-DD/
+        <run_id>.distributor.json
+    three-day/
+      YYYY-MM-DD/
+        <run_id>.distributor.json
+    weekend/
+      YYYY-MM-DD/
+        <run_id>.distributor.json
+    hourly/
+      YYYY-MM-DD/
+        <run_id>.distributor.json
+    tomorrow/
+      YYYY-MM-DD/
+        <run_id>.distributor.json
+    storm/
+      YYYY-MM-DD/
+        <run_id>.distributor.json
   reports/
     daily/
       <run_id>.md
+    today/
+      <run_id>.md
     three-day/
       <run_id>.md
     weekend/
       <run_id>.md
+    hourly/
+      <run_id>.md
+    tomorrow/
+      <run_id>.md
     storm/
       <run_id>.md
 ```
@@ -104,7 +199,8 @@ period do not overwrite each other.
 RunIDs are based on generation time plus report ID:
 
 ```text
-20260529T100000.123456789Z_daily_today
+20260529T100000.123456789Z_daily
+20260529T100000.123456789Z_today
 ```
 
 Each generated report writes metadata that links:
@@ -112,13 +208,68 @@ Each generated report writes metadata that links:
 - RunID, report ID, variant, and prompt ID
 - generation time, timezone, and valid period
 - source location, source hashes, and source warnings
-- briefing snapshot path
+- module snapshot path
 - prompt input data package path
 - preflight output path
 - managed Markdown report path
+- generated text schema ID and generated-text artifact paths for
+  generated-text-template reports
+- distributor notification debug artifact path, when notification is attempted
 
-Batch summaries include report status, error text when applicable, valid
+Batch summaries include report status, error text when applicable, notification
-period, and known artifact paths for each attempted report.
+outcome when attempted, valid period, and known artifact paths for each
+attempted report. Notification fields are `notificationStatus`,
+`notificationRunId`, and `notificationError`.
+
+## Distributor Notification
+
+Distributor notification is configured with `notify.distributor` and is
+disabled by default. When enabled, weatherreporter uploads the managed Markdown
+report path recorded in the report result and metadata. That single source file
+can be mapped to one or more configured bundle paths. By default, it is mapped
+to one dated report path. Extra copies written by `--out` or `--out-dir` are
+operator conveniences only.
+
+The rendered pipeline ID selects the configured distributor `http_upload`
+workflow. The default bundle ID is a stable logical source identity derived from
+producer name, location ID, and report ID:
+
+```text
+weatherreporter.{location_id}.{report_id}
+```
+
+The default idempotency key appends RunID to the rendered bundle ID so each
+report generation has a distinct retry identity. The default bundle path uses
+the valid-period start date, artifact group, and RunID. Distributor owns
+destination merge, retention, and derived snapshot behavior such as `latest`.
+For Daily, the default report ID and artifact group values are both `daily`,
+and the default output filename value is `daily.md`.
+For Today, the default report ID and artifact group values are both `today`,
+and the batch output filename value is `today.md`.
+
+Notification happens after final metadata save for generated reports. Weather
+API, module snapshot, data-package, render preflight, Scriptorium run,
+generated-text validation, template rendering, and metadata-save failures do
+not trigger notification. A notification failure fails that report.
+In a batch, other reports continue, the failed report includes notification
+fields in the JSON summary, and the batch returns nonzero.
+
+Each notification attempt writes a debug artifact under `notifications/`. The
+artifact records the rendered pipeline ID, bundle ID, idempotency key, managed
+source path, bundle-relative paths, bundle created timestamp, accepted upload
+response, and the latest distributor run status response when available.
+Weatherreporter polls status until distributor reports `succeeded` or `failed`,
+or until the configured notification timeout expires. The run status includes
+the distributor status, error text, and raw run report JSON, which can show
+actions such as `replace_older`, `skip_same`, `skip_destination_newer`, or
+`failed`. Token values are not written.
+
+Weatherreporter is responsible for selecting the managed Markdown report,
+constructing a source bundle, and submitting it to the configured distributor
+HTTP endpoint. Distributor remains responsible for destination routing,
+publication, and any downstream Markdown-to-HTML transformation. Distributor
+leaves destination files alone when they are not tracked by a newly uploaded
+bundle, so existing uploaded dated report paths can remain available.
 
 ## Inspection
 
@@ -128,30 +279,33 @@ They do not fetch weather data or run `scriptorium`.
 ```text
 weatherreporter inspect reports --limit 10
 weatherreporter inspect metadata RUN_ID
-weatherreporter inspect briefing RUN_ID
+weatherreporter inspect modules RUN_ID
 weatherreporter inspect data-package RUN_ID
 weatherreporter inspect prior RUN_ID
 weatherreporter inspect sources RUN_ID
 ```
 
-Use `inspect reports` to find recent RunIDs and artifact paths. Use
+Use `inspect reports` to find RunIDs and artifact paths. Use
 `inspect metadata` to see the artifact links recorded for a run. Use
-`inspect briefing` and `inspect data-package` to review the exact structured
+`inspect modules` to review the persisted ordered module snapshot with rich
-inputs used for rendering. Use `inspect prior` to see the prior comparable
+template-facing values, and `inspect data-package` to review the curated prompt
+package passed to Scriptorium. Use `inspect prior` to see the prior comparable
 snapshot selected for Recent Changes, or `null` when none exists. Use
 `inspect sources` to review source provenance and warnings without dumping full
 weather payloads.
 
 ## Recent Changes
 
-Recent Changes are computed from structured briefing snapshots, not rendered
+Recent Changes are computed from structured module snapshots, not rendered
-Markdown text.
+Markdown or YAML text.
 
-Daily Today and Daily Tomorrow can compare with each other when they cover the
+Daily Report compares with prior Daily Report snapshots for the same valid
-same valid local date. 3-Day Outlook compares with prior compatible 3-Day
+local date. Today Report compares with prior Today Report snapshots for the
-snapshots for the same valid local date. Weekend Outlook compares with prior
+same valid local date. Tomorrow Report compares with prior Tomorrow Report
-compatible Weekend snapshots for the same weekend window. Storm Report currently
+snapshots for the same valid local date. 3-Day Outlook compares with prior
-leaves Recent Changes empty.
+compatible 3-Day snapshots for the same valid local date. Weekend Outlook
+compares with prior compatible Weekend snapshots for the same weekend window.
+Hourly Report and Storm Report leave Recent Changes empty.
 
 When no prior comparable snapshot exists, or no configured threshold is crossed,
 `recentChanges.items` is empty.
@@ -164,6 +318,12 @@ A failed generation run may still leave useful artifacts:
   preflight JSON and metadata are written for inspection.
 - If `scriptorium run` exits nonzero after writing a report, the managed report
   and metadata remain available.
+- Generated-text failures for Daily, Today, Tomorrow, and Hourly reports preserve
+  available intermediate artifacts, such as the structured run result, raw
+  generated-text JSON, validated generated text, and render context. Metadata
+  links those paths when it can be safely written.
+- If distributor notification fails, report artifacts and final metadata remain
+  available, but the report or batch command returns nonzero.
 - For batch commands, inspect the stdout JSON summary first, then inspect the
   artifact paths for each failed report.
 
@@ -172,7 +332,7 @@ For a bad report, start with:
 ```text
 weatherreporter inspect metadata RUN_ID
 weatherreporter inspect sources RUN_ID
-weatherreporter inspect briefing RUN_ID
+weatherreporter inspect modules RUN_ID
 weatherreporter inspect data-package RUN_ID
 weatherreporter inspect prior RUN_ID
 ```

docs/policy/architecture.md

@@ -3,16 +3,22 @@
 This document defines the development principles for this Go project. It is inward-facing: developers and LLM coding agents should use it to preserve the project’s shape, boundaries, and invariants as the code evolves.
 
 ## weatherreporter
-`weatherreporter` is a deterministic weather briefing and report-preparation application. It consumes normalized weather data from the internal weatherfeeder-backed API, derives report-specific briefing packages, compares those packages against prior snapshots, and invokes an external prompt runner to produce human-facing reports.
+`weatherreporter` is a deterministic weather briefing and report-preparation application. It consumes normalized weather data from the internal weatherfeeder-backed API, derives report-specific module snapshots and prompt packages, compares module snapshots against prior runs, and invokes an external prompt runner to produce human-facing reports.
 
-The application should keep meteorological data selection, daypart grouping, threshold detection, forecast-period resolution, and recent-change comparison inside Go domain packages. LLM prompts should receive curated briefing packages rather than raw unbounded source payloads wherever practical.
+The application should keep meteorological data selection, daypart grouping, threshold detection, forecast-period resolution, and recent-change comparison inside Go domain packages. LLM prompts should receive curated module-based prompt packages rather than raw unbounded source payloads wherever practical.
 
-Report types must be defined through a registry or equivalent mechanism. Each report definition should declare its report ID, prompt ID, valid-period resolver, briefing builder, comparison strategy, and output naming behavior. Avoid scattering report-type conditionals across CLI and orchestration code.
+Report types must be defined through a registry or equivalent mechanism. Each report definition should declare its report ID, prompt ID, valid-period resolver, module composition, comparison strategy, and output naming behavior. Avoid scattering report-type conditionals across CLI and orchestration code.
 
-Generated reports must be associated with explicit metadata, including report type, location, generation time, valid period, source product timestamps or hashes, briefing snapshot path, and output path. Recent Changes must be based on structured snapshot comparison rather than comparison of rendered Markdown report text.
+Generated reports must be associated with explicit metadata, including report type, location, generation time, valid period, source product timestamps or hashes, module snapshot path, and output path. Recent Changes must be based on structured snapshot comparison rather than comparison of rendered Markdown report text.
 
 `scriptorium` is an external adapter, not domain logic. Subprocess execution must be isolated under `internal/adapters/scriptorium`, use context-aware execution, avoid shell interpolation, capture actionable stderr, and keep scriptorium-specific flags from leaking into domain packages.
 
+`distributor` is also an external adapter. Upload behavior must be isolated
+under `internal/adapters/distributor`, dependency types from the distributor
+module must not leak outside that adapter, and the selected upload source must
+be the managed Markdown report rather than optional output copies or broad
+workspace scans.
+
 ## Project Shape
 
 Default to a small, explicit, dependency-light Go application. Keep the design modular enough to test and change safely, but do not add abstraction unless it protects a real boundary or enables a real extension point.
@@ -54,7 +60,7 @@ Configuration precedence is:
 
 Prefer YAML configuration unless the project has a strong reason to use another format. Config files should be discovered at `/usr/local/etc/<app_name>/config.yml`, with a CLI override via `--config`.
 
-Configuration files should not contain raw secrets unless the application is explicitly designed for that. Prefer environment variables or secret files for secrets.
+Configuration files should not contain raw secrets unless the application is explicitly designed for that. Prefer environment variables or secret files for secrets. File-backed secrets are loaded through `secrets.directory`; secret values must not be logged, persisted, or included in user-facing output.
 
 ## Adapters and External Integrations
 

docs/policy/development.md

@@ -13,13 +13,17 @@ Developers and LLM coding agents should use it with
 - `internal/config`: configuration structs, defaults, loading, overrides, and
   validation.
 - `internal/fileutil`: shared atomic filesystem write and copy helpers.
+- `internal/adapters/distributor`: Distributor upload adapter.
 - `internal/adapters/weatherapi`: Weather API HTTP adapter.
 - `internal/adapters/scriptorium`: Scriptorium subprocess adapter.
-- `internal/forecast`: normalized bundle types and deterministic forecast
+- `internal/weatherdata`: normalized weather source facts, source metadata, and
-  derivation.
+  source warnings.
+- `internal/forecast`: deterministic forecast derivation.
+- `internal/facts`: collected and derived report fact contracts.
+- `internal/module`: module IDs, config items, output envelopes, and snapshots.
 - `internal/report`: report definitions, valid periods, batches, output names,
   and comparison declarations.
-- `internal/briefing`: report-specific briefing package builders.
+- `internal/briefing`: prompt-facing module value builders and module registry.
 - `internal/changes`: structured Recent Changes comparison.
 - `internal/promptinput`: Scriptorium `data_package` construction and
   validation.
@@ -45,7 +49,7 @@ Useful focused checks:
 ```bash
 go test ./internal/cli ./internal/config
 go test ./internal/app ./internal/state
-go test ./internal/adapters/weatherapi ./internal/adapters/scriptorium
+go test ./internal/adapters/distributor ./internal/adapters/weatherapi ./internal/adapters/scriptorium
 go test ./internal/forecast ./internal/report ./internal/briefing ./internal/changes ./internal/promptinput
 ```
 
@@ -64,6 +68,8 @@ Run `gofmt -w` on changed Go files before committing.
 - Use atomic writes for durable JSON artifacts where practical.
 - Keep report selection and prompt IDs centralized in `internal/report`.
 - Keep Scriptorium argv construction inside `internal/adapters/scriptorium`.
+- Keep distributor package types and upload-client construction inside
+  `internal/adapters/distributor`.
 - Keep Weather API transport and envelope handling inside
   `internal/adapters/weatherapi`.
 
@@ -72,8 +78,10 @@ Run `gofmt -w` on changed Go files before committing.
 Prefer the Go standard library. Add dependencies only when they materially
 improve correctness, interoperability, security, or maintainability.
 
-Current external dependency:
+Current external dependencies:
 
+- `gitea.maximumdirect.net/eric/distributor` for distributor source bundle
+  construction and HTTP upload client behavior.
 - `gopkg.in/yaml.v3` for YAML configuration parsing.
 
 When adding a dependency:
@@ -145,12 +153,14 @@ When an external contract changes, update the matching file under
 
 ## Tests
 
-Core tests must not require live Weather API or Scriptorium services.
+Core tests must not require live Weather API, Scriptorium, or distributor
+services.
 
 Preferred test patterns:
 
 - fake command runners for subprocess behavior;
 - `httptest.Server` for Weather API behavior;
+- fake distributor upload clients for notification behavior;
 - filesystem temp directories for state behavior;
 - deterministic clocks for report periods and RunIDs;
 - table tests for config validation, CLI parsing, period resolution, and
@@ -187,7 +197,8 @@ Update:
   behavior;
 - `docs/troubleshooting.md` for recurring operator-facing failure modes;
 - `docs/internal/` for component contracts and invariants;
-- `docs/integrations/` for external Weather API or Scriptorium contract changes;
+- `docs/integrations/` for external Weather API, Scriptorium, or distributor
+  contract changes;
 - `docs/roadmap/` only for unimplemented or deferred work.
 
 Non-roadmap docs must describe implemented behavior only.

docs/roadmap/audit.md

@@ -0,0 +1,659 @@
+# Code Quality And Deduplication Audit
+
+## Executive summary
+
+Overall code quality is strong. The repository is modular, the important
+external boundaries are mostly contained behind adapters, state paths are
+centralized, durable writes use shared file helpers, and report/module identity
+policy is mostly registry-driven.
+
+The top three cleanup targets before the next major release are:
+
+1. Day-style generated-text report duplication across Daily, Today, and
+   Tomorrow.
+2. Duplicated report-module config normalization and validation logic.
+3. Repeated Scriptorium run and structured-run result plumbing.
+
+The codebase appears ready for a limited cleanup pass. I do not see a major
+architectural risk that would require a broad rewrite. The most useful cleanup
+work is narrow, behavior-preserving, and should keep public CLI syntax and
+managed artifact paths stable.
+
+## Repository map reviewed
+
+Reviewed documentation and examples:
+
+- `README.md`
+- `docs/policy/architecture.md`
+- `docs/policy/development.md`
+- `docs/policy/documentation.md`
+- `docs/config.md`
+- `docs/cli.md`
+- `docs/operations.md`
+- `docs/troubleshooting.md`
+- `docs/internal/*.md`
+- `docs/integrations/{weatherapi,scriptorium,distributor}`
+- `docs/roadmap/{daily,data-package-exports,future,implementation}.md`
+- `examples/config.yml`
+- `examples/minimal-config.yml`
+
+Reviewed code areas:
+
+- `cmd/weatherreporter`
+- `internal/cli`
+- `internal/config`
+- `internal/app`
+- `internal/report`
+- `internal/module`
+- `internal/briefing`
+- `internal/facts`
+- `internal/forecast`
+- `internal/generatedtext`
+- `internal/reporttemplate`
+- `internal/promptinput`
+- `internal/changes`
+- `internal/state`
+- `internal/fileutil`
+- `internal/adapters/{weatherapi,scriptorium,distributor}`
+- `internal/weatherdata`
+- package-level tests throughout `internal`
+
+Major execution paths reviewed:
+
+- `weatherreporter generate ...` parsing and orchestration.
+- `weatherreporter run morning/evening` batch orchestration and output.
+- `weatherreporter inspect ...` artifact inspection.
+- Weather API bundle fan-out and missing-source handling.
+- module snapshot and prompt-input construction.
+- generated-text-template workflow for `daily`, `today`, `tomorrow`, and
+  `hourly`.
+- Scriptorium render/run/structured-run calls.
+- distributor notification request construction, upload, status, and debug
+  artifact persistence.
+
+Areas not deeply inspected:
+
+- Historical files under `workspace/`; these are generated artifacts rather
+  than source of truth.
+- Full live integration behavior against Weather API, Scriptorium, or
+  distributor; tests and adapter code were inspected instead.
+
+## High-confidence deduplication opportunities
+
+### 1. Consolidate common Daily/Today/Tomorrow generated-text report plumbing
+
+Affected files/packages:
+
+- `internal/generatedtext/daily.go`
+- `internal/generatedtext/today.go`
+- `internal/generatedtext/tomorrow.go`
+- `internal/generatedtext/render_context.go`
+- `internal/reporttemplate/templates/daily.md.tmpl`
+- `internal/reporttemplate/templates/today.md.tmpl`
+- `internal/reporttemplate/templates/tomorrow.md.tmpl`
+- `internal/reporttemplate/schemas/*.generated_text.schema.json`
+
+Duplicated or near-duplicated behavior:
+
+- `Daily`, `Today`, and `Tomorrow` have the same GeneratedText JSON shape:
+  `summary`, array-valued `forecast_discussion`, optional
+  `precipitation_timing`, and optional `confidence`.
+- `ValidateDaily`, `ValidateToday`, and `ValidateTomorrow` perform the same
+  trim, required-field, normalize, and error-shaping steps with only the report
+  name changing.
+- `DailyReportContext`, `TodayReportContext`, and `TomorrowReportContext` have
+  the same fields.
+- `dailyTemplateModules`, `todayTemplateModules`, and
+  `tomorrowTemplateModules` repeat the same module-snapshot lookups for common
+  stanzas, then differ only in ordered daypart wrapper and planning module.
+- The Daily, Today, and Tomorrow Markdown templates repeat large daypart and
+  precipitation-timing blocks. For example, the Daypart Forecast logic appears
+  in all three templates, with small policy differences such as Today omitting
+  missing daypart lines while Daily/Tomorrow render `Forecast details are
+  limited`.
+
+Why it matters:
+
+- These reports are intentionally independent at the public/report-definition
+  layer, but their current internal GeneratedText and daypart template surfaces
+  are close enough that wording, validation, and render-context changes are
+  likely to require edits in multiple places.
+- Small drift in deterministic report wording is easy to introduce accidentally
+  because the duplicated template logic is dense and hard to compare.
+- New day-style reports would likely copy this pattern again.
+
+Recommended refactor:
+
+- Keep separate exported report-specific types and template files, because the
+  reports are intended to diverge.
+- Introduce a small shared day-style GeneratedText validation helper that takes
+  the report name and typed value, or introduce an unexported common
+  `dayGeneratedText` shape embedded by report-specific types if that keeps
+  JSON and schema behavior clear.
+- Add a shared `dayReportCommonModules` or equivalent helper that loads common
+  module stanzas once and lets Daily/Today/Tomorrow add only report-specific
+  planning fields and daypart wrapper types.
+- Consider named template partials or a small deterministic presentation struct
+  for shared daypart/precipitation line rendering. Do not collapse the separate
+  report template files; make the shared pieces explicit and opt-in.
+
+Suggested tests:
+
+- Keep existing `internal/generatedtext` validation tests for each public type.
+- Add a table test that Daily, Today, and Tomorrow validators share the same
+  required-field behavior and unknown-field rejection.
+- Add render-context tests proving common module fields are populated for all
+  three day-style reports and each report still exposes its own planning module.
+- Add template tests that pin the intended daypart behavior for all three
+  reports after shared rendering cleanup.
+
+Risk level: medium. The behavior is user-facing Markdown and prompt-schema
+related, but the cleanup can be done in small steps with existing tests.
+
+### 2. Centralize report-module config normalization and validation
+
+Affected files/packages:
+
+- `internal/config/reports.go`
+- `internal/config/config_test.go`
+
+Duplicated or near-duplicated behavior:
+
+- `normalizeReportModules` and `validateReportModules` both traverse
+  `cfg.Reports`, resolve config keys with `report.IDForConfigKey`, track
+  duplicate report aliases, initialize the default report and module
+  registries, normalize module options, and call
+  `ModuleRegistry.ValidateComposition`.
+- `Config.ReportModuleOverrides` performs another report-key and duplicate
+  alias traversal before returning normalized module items.
+
+Why it matters:
+
+- Report-module configuration is user-visible policy. Drift between load-time
+  normalization, validation, and app-time override extraction could cause a
+  config to pass one path and fail another, or produce different error wording.
+- Adding a new report key, module option type, or validation rule currently
+  requires touching and reasoning about multiple similar loops.
+
+Recommended refactor:
+
+- Introduce one unexported helper that resolves report config entries into a
+  canonical structure, for example `normalizedReportOverrides(cfg,
+  normalizeOptions bool)`.
+- Have `Load` call the helper in mutating mode and have `Validate` or
+  `ReportModuleOverrides` reuse the same canonical traversal. Preserve current
+  error prefixes such as `reports.<key>.deterministic_modules[...]`.
+- Keep config loading and validation in `internal/config`; do not move user
+  config parsing into `internal/app`.
+
+Suggested tests:
+
+- Existing config tests for unknown report keys, duplicate report aliases,
+  unknown modules, incompatible modules, duplicate modules, and invalid module
+  options should continue passing.
+- Add one regression test that a manually constructed `config.Config` with raw
+  module options fails or normalizes consistently through the same helper path.
+- Add table coverage that duplicate aliases produce identical error context from
+  `Load` and `ReportModuleOverrides`.
+
+Risk level: low to medium. This is internal config plumbing, but it protects a
+public configuration surface.
+
+### 3. Deduplicate Scriptorium run and structured-run execution plumbing
+
+Affected files/packages:
+
+- `internal/adapters/scriptorium/runner.go`
+- `internal/adapters/scriptorium/runner_test.go`
+- `internal/app/app.go`
+
+Duplicated or near-duplicated behavior:
+
+- `RunResult` and `StructuredRunResult` have the same fields.
+- `Runner.Run` and `Runner.StructuredRun` validate the same request fields,
+  call `execute`, build the same result shape, attach `OutputPath`, and check a
+  nonzero exit code. The only meaningful differences are request/result types
+  and error wording.
+- `structuredRunArgs` delegates to `runArgs`, so the argv behavior is already
+  shared.
+
+Why it matters:
+
+- `scriptorium run` is a critical external integration. Any future change to
+  stdout/stderr truncation, exit-code handling, or output-path recording should
+  not require repeated edits.
+- The duplication is small now, but it is exactly the kind of adapter behavior
+  that can drift invisibly.
+
+Recommended refactor:
+
+- Keep the public `RunResult` and `StructuredRunResult` types if callers benefit
+  from distinct names.
+- Add an unexported `executeRunLike` helper that validates prompt ID, data
+  package path, and output path, executes args, and returns a shared internal
+  result struct.
+- Convert the shared result into `RunResult` or `StructuredRunResult` at the
+  public method boundary so JSON artifact shapes remain unchanged.
+
+Suggested tests:
+
+- Existing Scriptorium runner tests should remain behavior-preserving.
+- Add or keep table coverage that `Run` and `StructuredRun` produce the same
+  argv, output-path field, truncation fields, and nonzero exit behavior.
+
+Risk level: low. Adapter boundary is already narrow and well tested.
+
+## Medium-confidence opportunities
+
+### 1. Reduce repeated state save boilerplate without hiding artifact semantics
+
+Affected files/packages:
+
+- `internal/state/filesystem.go`
+- `internal/state/filesystem_test.go`
+
+Duplicated or near-duplicated behavior:
+
+- Most save methods call `Paths`, select one path, write JSON or bytes
+  atomically, and return the selected path.
+- Examples include `SaveModuleSnapshot`, `SavePreflight`,
+  `SaveDistributorNotification`, `SaveGeneratedTextRaw`,
+  `SaveGeneratedTextResult`, `SaveGeneratedText`, and `SaveRenderContext`.
+
+Semantic differences that may be intentional:
+
+- Some methods validate payloads before writing.
+- `SaveDataPackage` delegates to `promptinput.Save`.
+- `SaveMetadata` intentionally writes to the explicit metadata path stored on
+  `state.Metadata`.
+
+Why it matters:
+
+- Adding a new artifact type requires repeating the same path/write pattern.
+- Error context could drift if some methods wrap paths and others do not.
+
+Recommended refactor:
+
+- Consider small private helpers such as `saveJSONArtifact(resolved, pathFn,
+  value)` and `saveBytesArtifact(resolved, pathFn, data)` only if a new artifact
+  type is added or the save methods change again.
+- Do not create a generic manifest or artifact framework in this cleanup pass.
+
+Suggested tests:
+
+- Keep path tests and artifact save/load tests.
+- If helpers are introduced, add one focused test that a representative JSON
+  artifact and byte artifact still write to the same managed paths.
+
+Risk level: low.
+
+### 2. Extract package-local CLI integration test fixture helpers
+
+Affected files/packages:
+
+- `internal/cli/root_test.go`
+- `internal/app/app_test.go`
+
+Duplicated or near-duplicated behavior:
+
+- CLI integration tests carry large fake Scriptorium shell scripts with repeated
+  prompt-specific JSON cases for today, tomorrow, daily, and hourly.
+- Config string construction and test Weather API setup are repeated across
+  groups of tests.
+
+Semantic differences that may be intentional:
+
+- Some fake scripts exercise markdown-output mode, some structured-output mode,
+  and some failure behavior.
+- These tests are integration-style and intentionally explicit.
+
+Why it matters:
+
+- As report types and prompt schemas grow, the shell fixture blocks become a
+  brittle place to update prompt IDs, generated text schema shape, and expected
+  report behavior.
+- The large test file makes failures harder to localize.
+
+Recommended refactor:
+
+- Add package-local helper builders for fake Scriptorium behavior, for example a
+  map from prompt ID to JSON response plus a failure map for specific prompts.
+- Keep helpers local to `internal/cli` and `internal/app`; do not introduce a
+  cross-package test framework.
+- Keep a few explicit end-to-end tests that prove real command wiring still
+  works.
+
+Suggested tests:
+
+- No new behavior tests are required before helper extraction.
+- After extraction, run `go test ./internal/cli ./internal/app` and compare key
+  assertions around generated-text artifacts, CLI output, and batch summaries.
+
+Risk level: low.
+
+### 3. Clarify config-to-briefing registry boundary
+
+Affected files/packages:
+
+- `internal/config/reports.go`
+- `internal/briefing/modules.go`
+- `internal/module/module.go`
+
+Duplicated or near-duplicated behavior:
+
+- Not primarily duplication. This is a boundary concern: `internal/config`
+  imports `internal/briefing` to initialize the default module registry and
+  validate report module composition.
+
+Semantic differences that may be intentional:
+
+- The briefing registry is currently the implemented source of module builders,
+  supported reports, options, missing-data behavior, and prompt exporters.
+- Config validation needs option schemas and composition rules, so using the
+  registry is pragmatic.
+
+Why it matters:
+
+- `internal/config` now depends on the module-builder package, not only on
+  stable module option metadata. That is workable today, but it makes the
+  config package pull in more of the report-building layer than it strictly
+  needs.
+- If modules become more numerous or more expensive to initialize, config
+  validation may become harder to keep side-effect free.
+
+Recommended refactor:
+
+- Do not split this immediately.
+- If module catalog complexity grows, consider separating build-free module
+  definition metadata from module builders. The metadata/catalog can validate
+  config options and composition; `internal/briefing` can attach builders and
+  prompt exporters.
+
+Suggested tests:
+
+- Keep config tests that prove report/module overrides fail during config load.
+- If a build-free catalog is introduced later, add tests proving config
+  validation and runtime module build registry accept the same module IDs,
+  options, supported reports, and missing-data policies.
+
+Risk level: medium if deferred too long, low today.
+
+### 4. Keep Weather API source fan-out explicit, but watch source metadata drift
+
+Affected files/packages:
+
+- `internal/adapters/weatherapi/client.go`
+- `internal/weatherdata/bundle.go`
+
+Duplicated or near-duplicated behavior:
+
+- Each source fetch follows the same rough pattern: declare target, call
+  `fetchDecodedSource`, attach source timestamps, assign bundle field, and add
+  source provenance.
+
+Semantic differences that may be intentional:
+
+- Alerts intentionally special-case `data:null`.
+- Hourly is required and validates non-empty periods.
+- Weather story omits units.
+- SPC outlooks use endpoint constants and different issued/updated rules.
+
+Why it matters:
+
+- The current code is readable and not over-abstracted. The risk is future
+  source additions repeating timestamp/hash/missing-policy decisions by hand.
+
+Recommended refactor:
+
+- Do not introduce a generic source ingestion framework now.
+- When the next source is added, consider adding small source-spec helpers for
+  only the shared provenance fields that have identical semantics.
+
+Suggested tests:
+
+- Maintain focused adapter tests for each source's endpoint, query parameters,
+  missing-source policy, and source metadata.
+
+Risk level: low.
+
+## Boundary and responsibility concerns
+
+- `internal/config` depending on `internal/briefing` for module registry
+  validation is the clearest boundary ambiguity. It is currently pragmatic, but
+  a future build-free module catalog would fit the architecture better if
+  module option/config complexity grows.
+- `internal/app` owns distributor notification request construction, including
+  template values derived from report metadata. That is acceptable because
+  orchestration owns the report result and managed report path, while
+  distributor package types remain inside `internal/adapters/distributor`.
+- `internal/generatedtext` currently owns render-context assembly from module
+  snapshots. That is a reasonable home, but the day-style report duplication
+  should be reduced inside that package rather than moved into templates,
+  `internal/app`, or `internal/reporttemplate`.
+- `internal/reporttemplate` correctly owns embedded template/schema lookup and
+  rendering only. It should not absorb generated-text validation or report
+  module policy.
+
+## Path, key, and naming construction review
+
+Local workspace paths are centralized in `internal/state.FilesystemStore.Paths`.
+This is a strong point: module snapshots, metadata, data packages, preflight
+artifacts, notification artifacts, generated-text artifacts, render contexts,
+and managed reports all derive from a single path function.
+
+Distributor bundle path rendering is centralized in `internal/config` through
+`RenderDistributorReportPaths` and related template renderers. `internal/app`
+only assembles template values and maps the managed report path to rendered
+bundle paths. This is appropriate.
+
+Report identity, artifact groups, batch output names, prompt IDs, template IDs,
+and schema IDs are declared in `internal/report` definitions. Current report
+definition files are now one report per file for active report types, which is
+easy to navigate.
+
+Areas needing cleanup:
+
+- The repeated state save methods can be lightly helperized later, but path
+  construction itself is centralized enough.
+- Day-style template paths/schema IDs are declared in both `internal/report`
+  definitions and `internal/generatedtext`/`internal/reporttemplate` catalogs.
+  This is acceptable because those packages own different parts of the
+  contract, but tests should continue asserting catalog compatibility.
+
+## Resolution and catalog review
+
+Report resolution is consistent:
+
+- CLI command names resolve through `internal/report.IDForCommandName`.
+- Config report keys resolve through `internal/report.IDForConfigKey`.
+- Batches resolve through `internal/report.BatchReports`.
+- Report definitions own valid-period resolvers and module composition.
+
+Module resolution is consistent:
+
+- Report definitions and config overrides use `module.ConfigItem`.
+- Config module options are normalized and composition is validated before app
+  use.
+- Runtime module execution uses `internal/briefing.ModuleRegistry`.
+- Prompt-input category mapping is centralized in `internal/promptinput`.
+
+Generated-text resolution is mostly consistent:
+
+- `internal/report` declares generation mode, template ID, and generated-text
+  schema ID.
+- `internal/generatedtext.LookupDefinition` checks schema/template support and
+  pairing.
+- `internal/reporttemplate` owns embedded asset lookup.
+
+Recommended centralization:
+
+- Consolidate day-style generated-text validation and common render-context
+  extraction inside `internal/generatedtext`.
+- Keep separate report-specific public IDs, schemas, prompt assets, and
+  template files.
+
+## Config and command-loading review
+
+Configuration loading is centralized in `internal/config.Load` with the
+documented precedence: CLI overrides, config file, built-in defaults.
+Environment secrets load through `secrets.directory` after config file parsing
+and CLI overrides, before validation completes. CLI commands consistently call
+`config.Load` rather than independently applying defaults.
+
+Intentional differences:
+
+- `generate` accepts `--out`; `run` accepts `--out-dir`; inspect commands do
+  not accept weather overrides.
+- `generate daily` requires `--date`; `generate today` accepts optional
+  `--date`; storm requires `--start`/`--end`.
+- Distributor has no CLI flags and is config-only.
+
+Likely accidental or cleanup-worthy differences:
+
+- Report-module config traversal is duplicated across normalization,
+  validation, and override extraction. This is the main config cleanup target.
+
+## State, manifest, or progress handling review
+
+The application has durable workspace state but no manifest/resume engine.
+That is appropriate for the current scope.
+
+State handling is consistent in the implemented flow:
+
+- managed paths are computed by `state.FilesystemStore.Paths`;
+- module snapshots, data packages, preflight output, generated-text artifacts,
+  render context, metadata, and notification debug artifacts are persisted
+  under managed paths;
+- metadata links the relevant artifact paths;
+- prior snapshot lookup uses stored metadata and report compatibility policy;
+- inspection reads metadata and linked artifacts rather than refetching data.
+
+Potential drift to watch:
+
+- Metadata is saved several times during generated-text-template reports as
+  artifacts become available. This is operationally useful for diagnosis, but
+  future artifact additions should preserve the same pattern deliberately.
+- There is no retry/resume manifest. Do not add one unless operational
+  requirements become concrete.
+
+## Refactors to avoid
+
+- Do not introduce a generic workflow engine for generation. The current
+  explicit app orchestration is readable and well covered.
+- Do not migrate to Cobra or redesign the CLI. The standard-library CLI remains
+  adequate.
+- Do not introduce a plugin architecture for reports, modules, or adapters.
+- Do not create per-module or per-report Go packages. Recent file-level
+  separation is sufficient.
+- Do not build a broad Weather API source ingestion framework yet. Keep source
+  fetches explicit until repeated source semantics become materially expensive.
+- Do not replace module snapshots with a manifest system in this cleanup pass.
+- Do not create a global test helper package. Use package-local helpers where
+  test setup is noisy.
+- Do not consolidate Daily, Today, and Tomorrow into one public report type.
+  Their public identities and templates are intentionally independent.
+
+## Recommended implementation sequence
+
+1. **GeneratedText day-report helper cleanup**
+   - Goal: reduce Daily/Today/Tomorrow validation and render-context
+     duplication while preserving separate public report types and template
+     files.
+   - Files: `internal/generatedtext/*.go`, generatedtext tests.
+   - Validation: `go test ./internal/generatedtext`.
+
+2. **Day-style template duplication cleanup**
+   - Goal: reduce repeated Daypart Forecast and Precipitation Timing template
+     logic without eliminating per-report templates.
+   - Files: `internal/reporttemplate/templates/*.md.tmpl`,
+     `internal/reporttemplate/reporttemplate.go` if named partial parsing is
+     used, template tests, `docs/templates.md`.
+   - Validation: `go test ./internal/reporttemplate ./internal/generatedtext`.
+
+3. **Report-module config traversal cleanup**
+   - Goal: use one canonical traversal for report override normalization,
+     validation, and extraction.
+   - Files: `internal/config/reports.go`, config tests.
+   - Validation: `go test ./internal/config ./internal/app`.
+
+4. **Scriptorium run-result helper cleanup**
+   - Goal: share run/structured-run execution result construction while keeping
+     exported result structs stable.
+   - Files: `internal/adapters/scriptorium/runner.go`,
+     `internal/adapters/scriptorium/runner_test.go`.
+   - Validation: `go test ./internal/adapters/scriptorium`.
+
+5. **Package-local CLI/app test fixture cleanup**
+   - Goal: reduce repeated fake Scriptorium/config setup.
+   - Files: `internal/cli/root_test.go`, optionally `internal/app/app_test.go`.
+   - Validation: `go test ./internal/cli ./internal/app`.
+
+6. **Optional state save helper cleanup**
+   - Goal: reduce repeated `Paths` plus atomic write boilerplate only if the
+     prior steps touch state tests or a new artifact type is being added.
+   - Files: `internal/state/filesystem.go`, `internal/state/filesystem_test.go`.
+   - Validation: `go test ./internal/state ./internal/app`.
+
+7. **Final documentation and validation**
+   - Goal: update implemented docs for any changed internal contracts, then run
+     full validation.
+   - Files: relevant `docs/internal/*`, `docs/templates.md`,
+     `docs/policy/development.md` only if workflow changes.
+   - Validation: `go test ./...`, `go run ./cmd/weatherreporter --help`,
+     `git diff --check`.
+
+## Test strategy
+
+Tests to add before or during cleanup:
+
+- `internal/generatedtext`: table tests proving Daily/Today/Tomorrow share the
+  same generated-text required-field and unknown-field behavior.
+- `internal/generatedtext`: tests proving common day-style module extraction
+  still returns report-specific planning modules.
+- `internal/reporttemplate`: tests for shared daypart and precipitation
+  rendering behavior after template cleanup.
+- `internal/config`: tests proving `Load`, `Validate`, and
+  `ReportModuleOverrides` share duplicate alias and invalid module behavior.
+- `internal/adapters/scriptorium`: tests proving `Run` and `StructuredRun`
+  preserve argv, output path, captured output, truncation flags, and nonzero
+  exit behavior.
+- `internal/cli` and `internal/app`: keep workflow tests for generated-text
+  artifacts, data-package output, notification behavior, and batch summaries.
+
+Validation commands for cleanup work:
+
+```sh
+go test ./internal/generatedtext ./internal/reporttemplate
+go test ./internal/config ./internal/app
+go test ./internal/adapters/scriptorium
+go test ./internal/cli ./internal/state
+go test ./...
+go run ./cmd/weatherreporter --help
+git diff --check
+```
+
+Lightweight audit validation performed for this report:
+
+```sh
+go list ./...
+```
+
+## Appendix: findings not worth acting on
+
+- **Weather API source fetch functions look similar but should remain explicit
+  for now.** Each source has different required/optional behavior, endpoint
+  query options, timestamp rules, and null-data semantics. A generic framework
+  would make the current adapter harder to read.
+- **Report definition files intentionally repeat field names.** Each report
+  definition should remain explicit about prompt ID, template ID, artifact
+  group, batch output name, compatibility, and modules.
+- **CLI flag parsing uses repeated `flag.FlagSet` setup.** The current parser is
+  small and clear. Additional abstraction would not reduce much risk beyond the
+  existing `addCommonFlags` helper.
+- **`internal/app.GenerateReport` is long but linear.** It is the main
+  orchestration function and currently reads in the same order as the workflow.
+  Splitting it aggressively would risk hiding stage ordering. Prefer extracting
+  only small repeated mechanics.
+- **Generated Markdown templates are necessarily editable assets.** Do not
+  replace template wording with Go string builders. Cleanup should preserve the
+  user's ability to edit report layout and prose structure in template files.

docs/roadmap/cleanup.md

@@ -0,0 +1,481 @@
+# Cleanup Roadmap
+
+## Purpose
+
+This roadmap defines the staged cleanup work recommended by
+`docs/roadmap/audit.md`. It is written for an LLM coding agent that will
+implement each stage in order.
+
+The cleanup sequence is intentionally narrow. It should reduce duplication and
+clarify package responsibilities before the next major release without changing
+public CLI syntax, user configuration, report identities, managed artifact
+paths, or generated report behavior.
+
+This file may describe planned work because it lives under `docs/roadmap/`.
+
+## Cleanup Principles
+
+- Preserve public behavior unless a stage explicitly says otherwise.
+- Prefer small behavior-preserving refactors over broad rewrites.
+- Keep domain policy in the package that owns the relevant contract.
+- Keep external system details behind adapter boundaries.
+- Keep report, module, template, schema, path, and artifact identity explicit.
+- Add tests before or during cleanup where they protect public behavior or
+  important internal invariants.
+- Update implemented documentation only after code behavior exists.
+- Do not use cleanup as an opportunity to introduce new features.
+
+## Locked Decisions
+
+- Daily, Today, and Tomorrow remain separate report IDs, prompt IDs, schemas,
+  templates, and public generated-text types.
+- Cleanup may reduce shared internal day-style plumbing, but must not merge the
+  public report types.
+- Daily, Today, and Tomorrow keep separate top-level template files.
+- Named template partials may be introduced for repeated Daypart Forecast and
+  Precipitation Timing blocks.
+- Configuration ownership remains in `internal/config`; config parsing and
+  validation should not move into `internal/app` or `internal/briefing`.
+- Scriptorium and distributor dependency details must remain behind their
+  adapter packages.
+- Existing public CLI syntax, config fields, report IDs, prompt IDs, template
+  IDs, schema IDs, workspace paths, distributor paths, and generated report
+  paths remain stable.
+- Do not introduce Cobra, a workflow engine, a plugin system,
+  manifest/resume/progress infrastructure, per-module packages, per-report
+  packages, or a global test helper package.
+
+## Stage 1: Day-Style GeneratedText Validation Helpers
+
+### Goal
+
+Remove duplicated Daily/Today/Tomorrow generated-text validation while
+preserving public types and JSON schema behavior.
+
+### Implementation Guidance
+
+- Add an unexported shared helper in `internal/generatedtext` for the common
+  day-style shape: `summary`, `forecast_discussion`, optional
+  `precipitation_timing`, and optional `confidence`.
+- Keep exported `Daily`, `Today`, and `Tomorrow` structs.
+- Keep exported `ValidateDaily`, `ValidateToday`, and `ValidateTomorrow`
+  functions.
+- Preserve normalized JSON output shape and unknown-field rejection.
+- Preserve current error messages except for the expected report-name
+  substitution.
+- Do not change embedded generated-text schemas in this stage except as needed
+  to keep tests aligned with existing behavior.
+
+### Acceptance Criteria
+
+- Daily, Today, and Tomorrow validation use one shared internal validation path
+  for common trim, required-field, optional-field, and normalization behavior.
+- Public generated-text structs and function names remain unchanged.
+- Existing callers do not need to change.
+- Existing schema behavior remains unchanged.
+
+### Tests
+
+- Add table coverage proving Daily, Today, and Tomorrow share:
+  - required `summary` behavior;
+  - required non-empty `forecast_discussion` behavior;
+  - trim behavior;
+  - optional-field omission behavior;
+  - normalized JSON output behavior;
+  - unknown-field rejection.
+- Run:
+
+```sh
+go test ./internal/generatedtext
+```
+
+### Prompt Size
+
+Small enough for one implementation prompt.
+
+## Stage 2: Day-Style Render Context And Template Shared Blocks
+
+### Goal
+
+Reduce repeated Daily/Today/Tomorrow render-context and Markdown template logic
+without merging the reports.
+
+### Implementation Guidance
+
+- Add shared unexported helpers for common day-style report context fields such
+  as forecast date, forecast date label, generated timestamp label, valid
+  period, timezone, collected facts, and derived facts.
+- Add a common module snapshot extraction helper for shared day-style modules.
+- Keep report-specific planning modules separate:
+  - Daily uses `DailyPlanning`;
+  - Today uses `TodayPlanning`;
+  - Tomorrow uses `TomorrowPlanning`.
+- Keep report-specific daypart wrapper types if tests or templates benefit from
+  explicit names.
+- Add named template partial support in `internal/reporttemplate` for repeated
+  Daypart Forecast and Precipitation Timing blocks.
+- Keep `daily.md.tmpl`, `today.md.tmpl`, and `tomorrow.md.tmpl` as separate
+  top-level templates that opt into shared partials.
+- Preserve current rendered Markdown behavior, including Today's omission of
+  elapsed or missing daypart lines.
+- Do not replace editable Markdown templates with Go string builders.
+
+### Acceptance Criteria
+
+- Common day-style render-context setup is shared internally.
+- Daily, Today, and Tomorrow still expose their own render context types.
+- Shared template partials reduce repeated daypart and precipitation template
+  logic.
+- Report templates remain separately editable.
+- Current rendered output remains stable except for whitespace changes that are
+  covered by updated tests and intentionally accepted.
+
+### Tests
+
+- Update render-context tests to prove:
+  - common module fields are populated for Daily, Today, and Tomorrow;
+  - each report still exposes its correct planning module;
+  - Today still omits missing/elapsed dayparts where current behavior expects
+    omission.
+- Update reporttemplate tests to prove Daily, Today, and Tomorrow output remains
+  behaviorally stable.
+- Run:
+
+```sh
+go test ./internal/generatedtext ./internal/reporttemplate
+```
+
+### Prompt Size
+
+Likely one implementation prompt. If template partial parsing changes and
+render-context helper extraction become difficult to review together, split
+this into:
+
+1. render-context helper cleanup;
+2. template partial cleanup.
+
+## Stage 3: Report Module Config Traversal Cleanup
+
+### Goal
+
+Make report-module config normalization, validation, and override extraction use
+one canonical traversal.
+
+### Implementation Guidance
+
+- Refactor `internal/config/reports.go` around one unexported helper that:
+  - resolves report config keys through `internal/report`;
+  - detects duplicate aliases;
+  - validates report IDs against the report registry;
+  - normalizes module options when requested;
+  - builds `module.ConfigItem` values;
+  - validates module composition through the module registry.
+- Reuse that helper from:
+  - `normalizeReportModules`;
+  - `validateReportModules`;
+  - `ReportModuleOverrides`.
+- Preserve current configuration precedence and YAML shape.
+- Preserve current option normalization behavior.
+- Preserve error context such as
+  `reports.<key>.deterministic_modules[...]`.
+- Keep `internal/config` as the owner of config loading, normalization, and
+  validation.
+
+### Acceptance Criteria
+
+- Report-module config traversal exists in one implementation path.
+- Load-time normalization, validation, and override extraction cannot drift on
+  report-key or module composition policy.
+- Existing config files continue to load unchanged.
+- Existing config error messages remain materially equivalent and actionable.
+
+### Tests
+
+- Keep or update tests for:
+  - unknown report keys;
+  - duplicate report aliases;
+  - unknown modules;
+  - duplicate modules;
+  - incompatible modules;
+  - invalid module options;
+  - valid module overrides.
+- Add coverage proving loaded config and manually constructed config fail
+  consistently for the same invalid report/module cases.
+- Run:
+
+```sh
+go test ./internal/config ./internal/app
+```
+
+### Prompt Size
+
+Small enough for one implementation prompt.
+
+## Stage 4: Scriptorium Run Plumbing Cleanup
+
+### Goal
+
+Share `Run` and `StructuredRun` execution mechanics while keeping the
+Scriptorium adapter API stable.
+
+### Implementation Guidance
+
+- Add an unexported run-like helper in `internal/adapters/scriptorium` that:
+  - validates prompt ID;
+  - validates data package path;
+  - validates output path;
+  - executes the resolved argv;
+  - captures stdout and stderr;
+  - records truncation flags;
+  - records output path;
+  - handles nonzero exit results.
+- Keep exported `RunRequest`, `StructuredRunRequest`, `RunResult`, and
+  `StructuredRunResult`.
+- Keep `StructuredRun` using the same argv shape as `Run`; do not add schema or
+  format flags.
+- Preserve argv order.
+- Preserve stdout/stderr capture and truncation fields.
+- Preserve output-path fields.
+- Preserve existing nonzero-exit error wording as closely as possible.
+
+### Acceptance Criteria
+
+- `Run` and `StructuredRun` share validation and result construction mechanics.
+- Public adapter request/result types remain stable.
+- Existing app-layer Scriptorium calls do not need behavior changes.
+- Existing Scriptorium tests still pass with minimal expected-output updates.
+
+### Tests
+
+- Add or update parity tests proving `Run` and `StructuredRun` preserve:
+  - argv construction;
+  - output path;
+  - captured stdout/stderr;
+  - truncation flags;
+  - nonzero exit result and error behavior.
+- Run:
+
+```sh
+go test ./internal/adapters/scriptorium
+```
+
+### Prompt Size
+
+Small enough for one implementation prompt.
+
+## Stage 5: CLI Test Fixture Cleanup
+
+### Goal
+
+Reduce noisy repeated CLI integration test setup without creating a
+cross-package test framework.
+
+### Implementation Guidance
+
+- Add package-local helpers in `internal/cli` tests for repeated:
+  - fake Scriptorium script setup;
+  - generated-text JSON responses;
+  - config file writing;
+  - Weather API test server setup;
+  - artifact path or glob assertions.
+- Keep a few explicit CLI workflow tests readable end-to-end.
+- Do not add `internal/testutil` or another global test helper package.
+- Do not weaken assertions while deduplicating setup.
+- Do not change production CLI behavior in this stage.
+
+### Acceptance Criteria
+
+- Test setup repetition is reduced in the largest CLI test file.
+- Test behavior and coverage remain equivalent.
+- Helpers are local to `internal/cli`.
+- No production code changes are required for this stage.
+
+### Tests
+
+- Run:
+
+```sh
+go test ./internal/cli
+```
+
+### Prompt Size
+
+Small enough for one implementation prompt.
+
+## Stage 6: App Test Fixture Cleanup
+
+### Goal
+
+Reduce noisy repeated app orchestration test setup without creating a
+cross-package test framework.
+
+### Implementation Guidance
+
+- Add package-local helpers in `internal/app` tests where repetition is high and
+  the helper improves readability.
+- Good candidates include repeated fake renderer setup, generated-text JSON
+  responses, config file writing, Weather API test server setup, distributor
+  notifier setup, recording store setup, and artifact assertions.
+- Keep key workflow tests readable end-to-end so generation ordering remains
+  clear.
+- Do not add `internal/testutil` or another global test helper package.
+- Do not weaken assertions while deduplicating setup.
+- Do not change production app behavior in this stage.
+
+### Acceptance Criteria
+
+- Test setup repetition is reduced in the largest app test file.
+- Test behavior and coverage remain equivalent.
+- Helpers are local to `internal/app`.
+- No production code changes are required for this stage.
+
+### Tests
+
+- Run:
+
+```sh
+go test ./internal/app
+```
+
+### Prompt Size
+
+Small enough for one implementation prompt.
+
+## Stage 7: State Artifact Save Helper Cleanup
+
+### Goal
+
+Reduce repeated filesystem artifact write boilerplate while keeping artifact
+semantics visible.
+
+### Implementation Guidance
+
+- Add small private helpers in `internal/state/filesystem.go` for resolved JSON
+  and byte artifact writes.
+- Keep artifact-specific validation in public save methods before calling any
+  helper.
+- Keep each public save method explicit about which artifact path it writes.
+- Leave `SaveDataPackage` with its current special behavior unless a helper
+  cleanly preserves `promptinput.Save`.
+- Leave `SaveMetadata` with its current explicit metadata-path validation and
+  write behavior unless a helper cleanly preserves it.
+- Do not introduce a manifest, artifact registry, resume system, or broad
+  artifact framework.
+
+### Acceptance Criteria
+
+- Repeated `Paths` plus atomic write mechanics are reduced where the semantics
+  are identical.
+- Artifact-specific validation and path choice remain easy to see.
+- Managed artifact paths do not change.
+- Metadata JSON shape does not change.
+
+### Tests
+
+- Keep or update state save tests and metadata round-trip tests.
+- Run:
+
+```sh
+go test ./internal/state ./internal/app
+```
+
+### Prompt Size
+
+Small enough for one implementation prompt.
+
+## Stage 8: Documentation And Final Validation
+
+### Goal
+
+Align implemented documentation only where cleanup changes internal contracts or
+template editing guidance.
+
+### Implementation Guidance
+
+- Update `docs/templates.md` if named template partial support changes how
+  report templates should be edited.
+- Update relevant `docs/internal/*` files only for implemented internal
+  contract changes.
+- Update `docs/policy/development.md` only if contributor workflow guidance
+  changes.
+- Keep unimplemented or deferred cleanup ideas only under `docs/roadmap/`.
+- Do not document future refactors as implemented behavior.
+
+### Acceptance Criteria
+
+- Non-roadmap docs describe only implemented behavior.
+- Template-editing guidance matches the final template partial structure, if
+  partials were added.
+- Internal docs remain accurate for generated text, templates, config, state,
+  and adapters touched by cleanup.
+
+### Validation
+
+Run:
+
+```sh
+go test ./internal/generatedtext ./internal/reporttemplate
+go test ./internal/config ./internal/app
+go test ./internal/adapters/scriptorium
+go test ./internal/cli ./internal/state
+go test ./...
+go run ./cmd/weatherreporter --help
+git diff --check
+```
+
+### Prompt Size
+
+Small enough for one implementation prompt.
+
+## Deferred Refactors
+
+The following refactors are out of scope for this cleanup sequence:
+
+- Generic workflow engine.
+- Cobra migration or CLI redesign.
+- Plugin architecture.
+- Per-module or per-report packages.
+- Broad Weather API source-ingestion framework.
+- Manifest, resume, or progress system.
+- Global test helper package.
+- Consolidating Daily, Today, and Tomorrow into one public report type.
+- Replacing editable Markdown templates with Go string builders.
+- Build-free module catalog split.
+
+The build-free module catalog split may be revisited later if
+config/module-boundary complexity grows enough to justify separating module
+metadata from module builders.
+
+## Global Validation Checklist
+
+Run these checks after completing the full cleanup sequence:
+
+```sh
+go test ./...
+go run ./cmd/weatherreporter --help
+git diff --check
+```
+
+Also run focused checks after the relevant stages:
+
+```sh
+go test ./internal/generatedtext
+go test ./internal/generatedtext ./internal/reporttemplate
+go test ./internal/config ./internal/app
+go test ./internal/adapters/scriptorium
+go test ./internal/cli
+go test ./internal/app
+go test ./internal/state ./internal/app
+```
+
+Manual review checklist:
+
+- Public CLI syntax is unchanged.
+- Public config fields and defaults are unchanged.
+- Report IDs, prompt IDs, template IDs, and schema IDs are unchanged.
+- Managed workspace artifact paths are unchanged.
+- Distributor bundle paths and notification behavior are unchanged.
+- Generated report Markdown behavior is unchanged except for intentional,
+  test-covered whitespace differences.
+- Scriptorium argv construction is unchanged.
+- Non-roadmap docs do not describe unimplemented cleanup work.

docs/roadmap/future.md

@@ -3,21 +3,24 @@
 This roadmap contains project work that is not implemented. Current behavior is
 documented outside `docs/roadmap/`.
 
-## Deferred: Automatic Storm Monitoring
+## Automatic Storm Monitoring
 
-Manual Storm Report generation is implemented through
+Manual Storm Report generation is available through:
-`weatherreporter generate storm --start TIME --end TIME`. Automatic storm-event
-evaluation remains deferred.
 
-Proposed direction:
+```sh
+weatherreporter generate storm --start TIME --end TIME
+```
 
-1. detect candidate events deterministically from alerts, forecast discussion,
+Automatic storm-event evaluation is not implemented.
-   weather story context when available, hourly thresholds, and material
+
-   forecast changes;
+Possible direction:
-2. evaluate candidates through Scriptorium or another narrow evaluator adapter;
+
-3. persist storm lifecycle state;
+1. Detect candidate storm events from alerts, forecast discussion, weather
-4. generate or update Storm Reports only when a meaningful event is present;
+   story context, hourly thresholds, and material forecast changes.
-5. suppress ordinary low-impact thunder or rain chances.
+2. Evaluate candidates through Scriptorium or another narrow evaluator adapter.
+3. Persist storm lifecycle state.
+4. Generate or update Storm Reports only when a meaningful event is present.
+5. Suppress ordinary low-impact thunder or rain chances.
 
 Possible lifecycle states:
 
@@ -28,59 +31,104 @@ Possible lifecycle states:
 - `deescalating`
 - `resolved`
 
-Acceptance criteria before implementation:
+Before implementation, the design must preserve scheduled report behavior,
+manual Storm Report generation, inspectable evaluator failures, and fixture
+coverage for deterministic candidate detection.
 
-- scheduled reports and manual Storm Reports remain stable;
+## Future Report Types
-- candidate detection has fixture coverage;
-- evaluator failures are inspectable and do not create noisy report output;
-- manual Storm Report generation remains available.
 
-## Deferred: Alternate Runtime Integrations
+Possible future report types:
 
-These ideas are not current behavior:
+- a short-fuse planning report distinct from the implemented Hourly Report, if
+  a separate product is needed
+- event-specific reports with stable event IDs
+- storm review or yesterday-style reports using historical observations
+- archive-focused report variants if generated report history becomes a
+  first-class product
 
-- native LLM client inside `weatherreporter`;
+New reports should keep report identity, prompt IDs, templates, valid-period
-- database-backed state;
+resolution, artifact grouping, batch output names, and comparison policy inside
-- public HTTP API;
+`internal/report`.
-- multi-location selection;
+
-- daemon mode;
+## Future Modules
-- multi-user authorization;
+
-- plugin system.
+Possible future modules:
+
+- `hourly_table` for compact valid-period hourly facts
+- `forecast_delta` if a separate stanza is useful beyond current Recent
+  Changes
+- `weekend_planning` if weekend-specific planning guidance needs a dedicated
+  deterministic stanza
+- `storm_window_summary` if manual or automatic Storm Reports need a dedicated
+  prompt-facing storm-window module
+- separate AFD section aliases, such as `afd_key_messages`,
+  `afd_short_term_text`, and `afd_long_term_text`, if separate stanzas prove
+  more useful than `area_forecast_discussion.options.sections`
+- SPC, radar, QPF, snow/rain total, or historical-observation modules once
+  upstream sources and report requirements exist
+
+QPF fields such as `measurable_qpf_total_in` and `max_hourly_qpf_in` should
+remain omitted until a real upstream quantitative precipitation source is
+represented in `CollectedFacts`.
+
+Future module work should preserve these boundaries:
+
+- collect upstream facts once per report run
+- keep upstream fetching out of modules
+- keep broad reusable calculations in `DerivedFacts`
+- keep prompt-facing field shape inside module builders
+- use typed options for configurable module behavior
+- keep module snapshots structured and deterministic for Recent Changes
+
+## Distributor Notification Enhancements
+
+Distributor notification uploads one managed Markdown report per successful
+generated report through the configured HTTP upload pipeline. The following
+enhancements are not implemented:
+
+- `failure_policy: warn`
+- uploading metadata, module snapshots, data packages, or preflight artifacts
+- durable upload retry queues
+- distributor-specific CLI flags
+- distributor workspace scanning
+- destination routing, Markdown-to-HTML transformation, public URLs, or nginx
+  layout inside weatherreporter
+
+Any distributor enhancement should preserve the adapter boundary:
+weatherreporter selects explicit generated files and submits source bundles,
+while distributor owns destination routing and publication behavior.
+
+## Alternate Runtime Integrations
+
+These ideas are not implemented:
+
+- native LLM client inside `weatherreporter`
+- database-backed state
+- public HTTP API
+- multi-location selection
+- daemon mode
+- multi-user authorization
+- plugin system
+- dynamic module loading
+- user-defined module code
+- YAML-defined module schemas
+- module-owned Weather API fetching
 
 Each item needs its own design note before implementation. Non-roadmap docs
 must not describe these as available behavior.
 
-## Deferred: Cleanup Refactors
+## Deferred Refactors
 
-The initial cleanup pass intentionally left these refactors out because the
+These refactors should remain deferred until new requirements or recurring
-current implementation does not yet make them worth the added abstraction.
+maintenance costs make the added abstraction worthwhile:
 
-Revisit these only when new source types, report types, operational
+- broad briefing weather-signal consolidation
-requirements, or recurring maintenance costs make the duplication materially
+- generic workflow engine
-more expensive:
+- Cobra migration
-
+- manifest, resume, or progress system
-- Weather API optional-source specification/helper refactor: consider when
+- global test helper package
-  additional Weather API sources make per-source fan-out, policy handling, and
+- logging subsystem
-  provenance wiring repetitive enough to obscure adapter behavior.
-- Broad briefing weather-signal consolidation: consider when multiple briefing
-  builders repeatedly derive the same weather signals and tests begin to need
-  coordinated fixture updates.
-- Generic workflow engine: defer unless generation, inspection, recovery, or
-  future background workflows gain enough shared step semantics to justify a
-  declared execution model.
-- Plugin architecture: defer until there is a concrete external extension
-  contract and at least one implemented extension point.
-- Cobra migration: defer while the standard-library CLI remains small,
-  explicit, and covered by parser tests.
-- Manifest, resume, or progress system: defer until operators need resumable
-  runs, checkpoint recovery, or richer audit trails than the current durable
-  artifacts and metadata provide.
-- Global test helper package: defer while package-local helpers keep tests
-  clear; revisit only if setup duplication starts to hide behavior.
-- Logging subsystem: defer until there are recurring operator diagnostics that
-  cannot be handled with current errors, metadata, inspection commands, and
-  artifact output.
 
 Any future implementation should preserve the existing public CLI, artifact
-paths, report identities, and adapter boundaries unless a separate roadmap
+paths, report identities, module boundaries, and adapter boundaries unless a
-explicitly changes them.
+separate roadmap explicitly changes them.

docs/templates.md

@@ -0,0 +1,405 @@
+# Report Templates
+
+## Purpose
+
+This guide describes the implemented Markdown report template surface for
+`weatherreporter`. It is for maintainers editing embedded report templates,
+especially generated-text-template reports.
+
+Templates are Go `text/template` files. The current implemented templates are:
+
+- `internal/reporttemplate/templates/daily.md.tmpl`
+- `internal/reporttemplate/templates/today.md.tmpl`
+- `internal/reporttemplate/templates/tomorrow.md.tmpl`
+- `internal/reporttemplate/templates/hourly.md.tmpl`
+
+Templates are rendered from structured contexts such as `DailyRenderContext`,
+`TodayRenderContext`, `TomorrowRenderContext`, and `HourlyRenderContext`.
+Weather data collection, derivation, module execution, generated text
+validation, and artifact paths are handled before template rendering.
+
+## Editing Rules
+
+- Use Go `text/template` syntax.
+- Keep templates focused on Markdown layout, headings, ordering, and simple
+  conditional display.
+- Do not put weather derivation, source selection, or path construction logic in
+  templates.
+- Missing template keys are errors. A misspelled variable will fail rendering.
+- No custom template functions are currently registered.
+- Optional module stanzas are pointers and should be guarded with
+  `{{ with .Modules.WeatherStory }}...{{ end }}`.
+- Slices can be rendered with `{{ range .Items }}...{{ else }}...{{ end }}`.
+
+## Hourly Context
+
+The hourly template receives five top-level values:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Report` | HourlyReportContext | Display metadata and friendly labels for the rendered report. |
+| `.GeneratedText` | Hourly | Structured text returned by Scriptorium. |
+| `.Modules` | HourlyTemplateModules | Preferred deterministic template surface, keyed by module purpose. |
+| `.Collected` | facts.CollectedFacts | Normalized upstream facts for advanced template use. |
+| `.Derived` | facts.DerivedFacts | Shared derived facts for advanced template use. |
+
+Prefer `.Modules` for normal template edits. `.Collected` and `.Derived` are
+available when a template needs lower-level facts, but templates should still
+avoid nontrivial derivation.
+
+## Report
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Report.Title` | string | Display title. Currently `Hourly Report`. |
+| `.Report.LocationName` | string | Prompt/report location label, such as `Brentwood, MO`. |
+| `.Report.GeneratedAt` | time.Time | Canonical generation timestamp. |
+| `.Report.GeneratedAtLabel` | string | Friendly local generation time label. |
+| `.Report.ValidPeriod` | timeutil.Period | Canonical valid period. |
+| `.Report.ValidPeriodLabel` | string | Friendly local valid period label, such as `2026-05-29 at 8:30 AM to 2026-05-29 at 2:30 PM`. |
+| `.Report.Timezone` | string | Effective report timezone. |
+
+## GeneratedText
+
+These fields are written by Scriptorium as structured JSON, validated by
+weatherreporter, and then inserted into the render context.
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.GeneratedText.Summary` | string | Required short prose summary. |
+| `.GeneratedText.ForecastDiscussion` | string | Required prose for the Forecast Discussion section. |
+| `.GeneratedText.PrecipitationTiming` | string | Optional prose rendered after deterministic precipitation windows. |
+| `.GeneratedText.Confidence` | string | Optional confidence or uncertainty note. Empty when omitted by the LLM; not rendered by the current hourly template. |
+
+Example:
+
+```gotemplate
+{{ .GeneratedText.Summary }}
+
+## Forecast Discussion
+
+{{ .GeneratedText.ForecastDiscussion }}
+```
+
+## Tomorrow Context
+
+The Tomorrow template receives five top-level values:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Report` | TomorrowReportContext | Display metadata and friendly labels for the rendered report. |
+| `.GeneratedText` | Tomorrow | Structured text returned by Scriptorium. |
+| `.Modules` | TomorrowTemplateModules | Preferred deterministic template surface, keyed by module purpose. |
+| `.Collected` | facts.CollectedFacts | Normalized upstream facts for advanced template use. |
+| `.Derived` | facts.DerivedFacts | Shared derived facts for advanced template use. |
+
+Tomorrow report metadata includes `.Report.Title`, `.Report.ForecastDate`,
+`.Report.ForecastDateLabel`, `.Report.ForecastDayName`,
+`.Report.GeneratedAt`, `.Report.GeneratedAtLabel`, `.Report.ValidPeriod`, and
+`.Report.Timezone`.
+
+Tomorrow generated text uses the same `.GeneratedText.Summary`,
+`.GeneratedText.PrecipitationTiming`, and `.GeneratedText.Confidence` fields as
+Hourly. `.GeneratedText.ForecastDiscussion` is a slice of paragraphs and should
+be rendered with `range`.
+
+Tomorrow modules include the Hourly module fields plus:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.DerivedDailySummary` | *briefing.DerivedDailySummaryModule | Daily summary facts for the forecast date. |
+| `.Modules.DerivedDaypartSummaries` | *map[string]briefing.DerivedDaypartSummaryModule | Raw daypart summary map, when direct keyed access is needed. |
+| `.Modules.Dayparts` | []generatedtext.TomorrowDaypartContext | Ordered daypart summaries for deterministic template rendering. |
+| `.Modules.TomorrowPlanning` | *briefing.TomorrowPlanningModule | Planning facts for the next local civil day. |
+
+Prefer `.Modules.Dayparts` over ranging through
+`.Modules.DerivedDaypartSummaries`; it follows configured daypart order and
+falls back to sorted keys for any unmatched entries.
+
+## Daily Context
+
+The Daily template receives the same five top-level values as Tomorrow, using
+`DailyReportContext`, `Daily`, and `DailyTemplateModules`.
+
+Daily report metadata includes `.Report.Title`, `.Report.ForecastDate`,
+`.Report.ForecastDateLabel`, `.Report.ForecastDayName`,
+`.Report.GeneratedAt`, `.Report.GeneratedAtLabel`, `.Report.ValidPeriod`, and
+`.Report.Timezone`.
+
+Daily generated text uses `.GeneratedText.Summary`,
+`.GeneratedText.ForecastDiscussion`, `.GeneratedText.PrecipitationTiming`, and
+`.GeneratedText.Confidence`. Forecast discussion is a slice of paragraphs and
+should be rendered with `range`.
+
+Daily uses template ID `daily`, generated-text schema ID `daily`, and prompt
+source `internal/reporttemplate/prompts/daily.generated_text.md`.
+
+Daily modules include the Hourly module fields plus:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.DerivedDailySummary` | *briefing.DerivedDailySummaryModule | Daily summary facts for the forecast date. |
+| `.Modules.DerivedDaypartSummaries` | *map[string]briefing.DerivedDaypartSummaryModule | Raw daypart summary map, when direct keyed access is needed. |
+| `.Modules.Dayparts` | []generatedtext.DailyDaypartContext | Ordered daypart summaries for deterministic template rendering. |
+| `.Modules.DailyPlanning` | *briefing.DailyPlanningModule | Planning facts for the selected local civil day. |
+
+Prefer `.Modules.Dayparts` over ranging through
+`.Modules.DerivedDaypartSummaries`; it follows configured daypart order and
+falls back to sorted keys for any unmatched entries.
+
+## Today Context
+
+The Today template receives the same five top-level values as Tomorrow, using
+`TodayReportContext`, `Today`, and `TodayTemplateModules`.
+
+Today report metadata includes `.Report.Title`, `.Report.ForecastDate`,
+`.Report.ForecastDateLabel`, `.Report.ForecastDayName`,
+`.Report.GeneratedAt`, `.Report.GeneratedAtLabel`, `.Report.ValidPeriod`, and
+`.Report.Timezone`.
+
+Today generated text uses `.GeneratedText.Summary`,
+`.GeneratedText.ForecastDiscussion`, `.GeneratedText.PrecipitationTiming`, and
+`.GeneratedText.Confidence`. Forecast discussion is a slice of paragraphs and
+should be rendered with `range`.
+
+Today uses template ID `today`, generated-text schema ID `today`, and prompt
+source `internal/reporttemplate/prompts/today.generated_text.md`.
+
+Today modules include the Hourly module fields plus:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.DerivedDailySummary` | *briefing.DerivedDailySummaryModule | Daily summary facts for the forecast date. |
+| `.Modules.DerivedDaypartSummaries` | *map[string]briefing.DerivedDaypartSummaryModule | Raw daypart summary map, when direct keyed access is needed. |
+| `.Modules.Dayparts` | []generatedtext.TodayDaypartContext | Ordered daypart summaries for deterministic template rendering. |
+| `.Modules.TodayPlanning` | *briefing.TodayPlanningModule | Planning facts for the current local civil day. |
+
+Prefer `.Modules.Dayparts` over ranging through
+`.Modules.DerivedDaypartSummaries`; it follows configured daypart order and
+falls back to sorted keys for any unmatched entries.
+
+## Modules
+
+`.Modules` exposes typed outputs from the same module pipeline used for the
+prompt data package. Module fields are pointers because missing-data policy may
+omit a stanza.
+
+Templates render from rich module values, not from the curated YAML data
+package. Some fields documented below are deterministic wording helpers for
+Markdown templates and are intentionally omitted from data packages passed to
+Scriptorium. The data package is a prompt input, while the render context is the
+template surface.
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.Metadata` | *briefing.MetadataModule | Report metadata module output, when present. |
+| `.Modules.CurrentConditions` | *briefing.CurrentConditionsModule | Current conditions from `/conditions/current`. |
+| `.Modules.HourlyForecast` | *briefing.HourlyForecastModule | Hourly forecast periods overlapping the report valid period. |
+| `.Modules.PrecipTiming` | *briefing.PrecipTimingModule | Derived precipitation timing facts and threshold windows. |
+| `.Modules.AlertDigest` | *briefing.AlertDigestModule | Active alert status and relevant alert overlaps. |
+| `.Modules.SPCConvectiveOutlooks` | *briefing.SPCConvectiveOutlooksModule | SPC outlooks that overlap the report valid period. |
+| `.Modules.AreaForecastDiscussion` | *briefing.AreaForecastDiscussionModule | AFD key messages and configured discussion sections. |
+| `.Modules.SPCConvectiveDiscussion` | *briefing.SPCConvectiveDiscussionModule | SPC discussions retained for qualifying overlapping categorical risk days. |
+| `.Modules.WeatherStory` | *briefing.WeatherStoryModule | Latest NWS weather story, when available. |
+
+### Current Conditions
+
+Common fields:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.CurrentConditions.ConditionText` | string | Current condition text. |
+| `.Modules.CurrentConditions.ConditionTextLower` | string | Lower-case current condition text for inline sentences. |
+| `.Modules.CurrentConditions.TemperatureF` | *int | Rounded current temperature. |
+| `.Modules.CurrentConditions.ApparentTemperatureF` | *int | Rounded apparent temperature. |
+| `.Modules.CurrentConditions.RelativeHumidityPercent` | *int | Rounded relative humidity. |
+| `.Modules.CurrentConditions.WindDirection` | string | 16-point compass wind direction. |
+| `.Modules.CurrentConditions.WindDirectionText` | string | Lower-case full wind direction text, such as `northwest`. |
+| `.Modules.CurrentConditions.WindSpeedMph` | *int | Rounded wind speed. |
+
+Example:
+
+```gotemplate
+{{ with .Modules.CurrentConditions }}
+{{ .ConditionText }}{{ with .TemperatureF }}; {{ . }} F{{ end }}{{ with .WindDirection }}; wind {{ . }}{{ end }}{{ with .WindSpeedMph }} {{ . }} mph{{ end }}
+{{ else }}
+No current conditions available.
+{{ end }}
+```
+
+### Hourly Forecast
+
+Common period fields:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.HourlyForecast.Periods` | []briefing.HourlyForecastPeriod | Ordered periods for the hourly report valid period. |
+| `.Modules.HourlyForecast.Periods[].HourLabel` | string | Friendly hour label such as `4:00 PM`. |
+| `.Modules.HourlyForecast.Periods[].PeriodBegins` | string | Friendly local period start label. |
+| `.Modules.HourlyForecast.Periods[].PeriodEnds` | string | Friendly local period end label. |
+| `.Modules.HourlyForecast.Periods[].Name` | string | Source period name. |
+| `.Modules.HourlyForecast.Periods[].TextDescription` | string | Hourly forecast text. |
+| `.Modules.HourlyForecast.Periods[].TextDescriptionLower` | string | Lower-case hourly forecast text for inline sentences. |
+| `.Modules.HourlyForecast.Periods[].TemperatureF` | *float64 | Forecast temperature. |
+| `.Modules.HourlyForecast.Periods[].ProbabilityOfPrecipitationPercent` | *float64 | Forecast precipitation probability. |
+| `.Modules.HourlyForecast.Periods[].MentionPrecipitation` | bool | True when precipitation probability meets the hourly mention threshold. |
+| `.Modules.HourlyForecast.Periods[].WindDirection` | string | 16-point compass wind direction. |
+| `.Modules.HourlyForecast.Periods[].WindSpeedMph` | *float64 | Wind speed. |
+| `.Modules.HourlyForecast.Periods[].WindGustMph` | *float64 | Wind gust. |
+
+Example:
+
+```gotemplate
+{{ with .Modules.HourlyForecast }}{{ range .Periods }}
+- **{{ .HourLabel }}:**{{ with .TemperatureF }} {{ . }}°F{{ end }} and {{ .TextDescriptionLower }}.{{ if .MentionPrecipitation }}{{ with .ProbabilityOfPrecipitationPercent }} Probability of precipitation is {{ . }}%.{{ end }}{{ end }}
+{{ else }}
+- No hourly forecast rows available.
+{{ end }}{{ end }}
+```
+
+### Precipitation Timing
+
+Common fields:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.PrecipTiming.MaxPopPercent` | *int | Highest hourly precipitation probability in the valid period. |
+| `.Modules.PrecipTiming.MaxPopTime` | string | Friendly local time for the highest hourly precipitation probability. |
+| `.Modules.PrecipTiming.ProbabilityThreshold` | float64 | Threshold used to define precipitation windows. |
+| `.Modules.PrecipTiming.PrecipitationWindows` | []briefing.PrecipitationWindowModule | One or more threshold precipitation windows. |
+| `.Modules.PrecipTiming.PrecipitationWindows[].PeriodBegins` | string | Friendly local window start. |
+| `.Modules.PrecipTiming.PrecipitationWindows[].PeriodBeginsHourLabel` | string | Friendly window start hour, such as `4:00 PM`. |
+| `.Modules.PrecipTiming.PrecipitationWindows[].PeriodEnds` | string | Friendly local window end; omitted for open windows. |
+| `.Modules.PrecipTiming.PrecipitationWindows[].PeriodEndsHourLabel` | string | Friendly window end hour; omitted for open windows. |
+| `.Modules.PrecipTiming.PrecipitationWindows[].MaxPopPercent` | *int | Highest precipitation probability inside the window. |
+| `.Modules.PrecipTiming.PrecipitationWindows[].MaxPopTime` | string | Friendly local time for the window maximum. |
+| `.Modules.PrecipTiming.PrecipitationWindows[].MaxPopHourLabel` | string | Friendly hour label for the window maximum. |
+| `.Modules.PrecipTiming.ThunderMentioned` | bool | Whether thunder is mentioned in the forecast text. |
+
+### Daypart Summaries
+
+Daily, Today, and Tomorrow templates should use `.Modules.Dayparts` for
+ordered daypart rendering. Each item has `Key` and `Summary`; `Summary` is a
+rich `briefing.DerivedDaypartSummaryModule`.
+
+Common rich daypart fields:
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.Dayparts[].Summary.DisplayName` | string | Human-readable daypart label. |
+| `.Modules.Dayparts[].Summary.PeriodBegins` | string | Friendly local daypart start. |
+| `.Modules.Dayparts[].Summary.PeriodEnds` | string | Friendly local daypart end. |
+| `.Modules.Dayparts[].Summary.TempRangeF` | string | Rounded temperature range or single temperature. |
+| `.Modules.Dayparts[].Summary.TemperaturePhraseF` | string | Temperature phrase used for steady template wording. |
+| `.Modules.Dayparts[].Summary.TemperatureTrend` | string | Trend category such as `rising`, `falling`, `peaking`, or `steady`. |
+| `.Modules.Dayparts[].Summary.TemperatureStartPhraseF` | string | Starting temperature phrase for rising/falling wording. |
+| `.Modules.Dayparts[].Summary.TemperatureEndPhraseF` | string | Ending temperature phrase for rising/falling wording. |
+| `.Modules.Dayparts[].Summary.TemperaturePeakPhraseF` | string | Peak temperature phrase for peaking wording. |
+| `.Modules.Dayparts[].Summary.TemperatureSteadyPhraseF` | string | Steady temperature phrase. |
+| `.Modules.Dayparts[].Summary.MaxPopPercent` | *int | Highest precipitation probability in the daypart. |
+| `.Modules.Dayparts[].Summary.MaxPopTime` | string | Friendly local time for the highest precipitation probability. |
+| `.Modules.Dayparts[].Summary.MaxPopTimeLabel` | string | Clock-style label for deterministic precipitation timing text. |
+| `.Modules.Dayparts[].Summary.MentionPrecipitation` | bool | True when precipitation probability should be mentioned by the template. |
+| `.Modules.Dayparts[].Summary.DominantCondition` | string | Dominant condition text. |
+| `.Modules.Dayparts[].Summary.DominantConditionLower` | string | Lower-case condition text for inline sentences. |
+| `.Modules.Dayparts[].Summary.DominantConditionDisplay` | string | Display-case condition text for bullet starts. |
+| `.Modules.Dayparts[].Summary.NotableConditions` | []string | Notable condition labels retained for the daypart. |
+
+Template-only daypart helpers such as `TemperaturePhraseF`,
+`DominantConditionLower`, `DominantConditionDisplay`, and `MaxPopTimeLabel`
+remain available here even though they are not serialized into data-package
+YAML.
+
+### Alert Digest
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.AlertDigest.Checked` | bool | Whether alert data was checked successfully. |
+| `.Modules.AlertDigest.ActiveCount` | int | Active alert count from the source. |
+| `.Modules.AlertDigest.RelevantCount` | int | Alert count overlapping the report period. |
+| `.Modules.AlertDigest.Missing` | bool | True when alert data is unavailable. |
+| `.Modules.AlertDigest.Relevant` | []briefing.AlertSummary | Relevant alert summaries. |
+| `.Modules.AlertDigest.Relevant[].Event` | string | Alert event name. |
+| `.Modules.AlertDigest.Relevant[].Headline` | string | Alert headline. |
+| `.Modules.AlertDigest.Relevant[].Severity` | string | Alert severity. |
+
+### SPC Outlooks And Discussion
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.SPCConvectiveOutlooks.Checked` | bool | Whether SPC outlook data was checked successfully. |
+| `.Modules.SPCConvectiveOutlooks.AsOf` | string | Friendly source as-of time. |
+| `.Modules.SPCConvectiveOutlooks.IssuedAt` | string | Friendly source issue time. |
+| `.Modules.SPCConvectiveOutlooks.Outlooks` | []briefing.SPCConvectiveOutlookRecord | Overlapping outlook records. |
+| `.Modules.SPCConvectiveOutlooks.Outlooks[].Day` | int | SPC day number. |
+| `.Modules.SPCConvectiveOutlooks.Outlooks[].OutlookType` | string | Outlook type, such as `categorical`. |
+| `.Modules.SPCConvectiveOutlooks.Outlooks[].Label` | string | Short outlook label. |
+| `.Modules.SPCConvectiveOutlooks.Outlooks[].LabelText` | string | Human-readable outlook label. |
+| `.Modules.SPCConvectiveOutlooks.Outlooks[].PeriodBegins` | string | Friendly outlook period start. |
+| `.Modules.SPCConvectiveOutlooks.Outlooks[].PeriodEnds` | string | Friendly outlook period end. |
+| `.Modules.SPCConvectiveOutlooks.Outlooks[].ImageURL` | string | Source image URL. |
+| `.Modules.SPCConvectiveDiscussion.IncludedBecause` | string | Criterion used to include discussions. |
+| `.Modules.SPCConvectiveDiscussion.Discussions` | []briefing.SPCConvectiveDiscussionRecord | Retained discussion records. |
+| `.Modules.SPCConvectiveDiscussion.Discussions[].Headline` | string | Discussion headline. |
+| `.Modules.SPCConvectiveDiscussion.Discussions[].Summary` | string | Discussion summary. |
+| `.Modules.SPCConvectiveDiscussion.Discussions[].Discussion` | string | Full discussion text. |
+
+### Area Forecast Discussion
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.AreaForecastDiscussion.Product` | string | Source product identifier. |
+| `.Modules.AreaForecastDiscussion.KeyMessages` | []string | AFD key messages. |
+| `.Modules.AreaForecastDiscussion.ShortTerm` | string | AFD short-term section text. |
+| `.Modules.AreaForecastDiscussion.LongTerm` | string | AFD long-term section text. |
+
+### Weather Story
+
+| Variable | Type | Description |
+| --- | --- | --- |
+| `.Modules.WeatherStory.Available` | bool | True when a story is available. |
+| `.Modules.WeatherStory.OfficeID` | string | Source office ID. |
+| `.Modules.WeatherStory.PeriodBegins` | string | Friendly story period start. |
+| `.Modules.WeatherStory.PeriodEnds` | string | Friendly story period end. |
+| `.Modules.WeatherStory.UpdatedAt` | *time.Time | Canonical update timestamp. |
+| `.Modules.WeatherStory.Title` | string | Story title. |
+| `.Modules.WeatherStory.Description` | string | Story description. |
+| `.Modules.WeatherStory.AltText` | string | Story image alt text. |
+| `.Modules.WeatherStory.Priority` | bool | Source priority flag. |
+| `.Modules.WeatherStory.Order` | int | Source order. |
+| `.Modules.WeatherStory.DownloadURL` | string | Source download URL. |
+
+## Collected And Derived Facts
+
+The template also receives the full `facts.CollectedFacts` and
+`facts.DerivedFacts` structs:
+
+- `.Collected` contains normalized source data and provenance from upstream
+  Weather API fetches.
+- `.Derived` contains shared slices and calculations used across modules, such
+  as valid-period hourly periods, precipitation timing, alert overlaps, and SPC
+  filtering inputs.
+
+These values are intentionally lower-level than `.Modules`. Use them when a
+template needs a specific field that is not exposed by a module, but keep
+calculation-heavy changes in Go.
+
+## Validation
+
+After editing a template, run:
+
+```bash
+go test ./internal/reporttemplate ./internal/generatedtext ./internal/app
+```
+
+For a full check, run:
+
+```bash
+go test ./...
+go run ./cmd/weatherreporter --help
+git diff --check
+```
+
+Template render tests exercise the Daily, Today, Tomorrow, and Hourly
+templates through `internal/generatedtext/render_context_test.go` and
+`internal/reporttemplate/reporttemplate_test.go`.

docs/troubleshooting.md

@@ -185,6 +185,52 @@ prompt, profile, model configuration, or validation issue.
 Relevant docs: [Operations guide](operations.md),
 [Scriptorium integration](integrations/scriptorium.md).
 
+## Generated Text Validation Fails
+
+Symptom: Daily, Today, Tomorrow, or Hourly generation fails with generated-text
+decode, unknown-field, required-field, or multiple-JSON-values context.
+
+Likely cause: Scriptorium wrote structured JSON that does not match the
+GeneratedText contract for the selected report.
+
+Diagnostic:
+
+```sh
+weatherreporter inspect metadata RUN_ID
+```
+
+Then inspect the generated-text raw path recorded in metadata, if present.
+
+Safe fix: update the Scriptorium prompt or schema configuration so the prompt
+writes the expected structured JSON for the report.
+
+Relevant docs: [Operations guide](operations.md),
+[Generated Text internals](internal/generatedtext.md),
+[Scriptorium integration](integrations/scriptorium.md).
+
+## Template Rendering Fails
+
+Symptom: Daily, Today, Tomorrow, or Hourly generation fails with report template
+parsing or execution context after generated text validation succeeds.
+
+Likely cause: an embedded template references a missing context field or
+receives a value shape that does not match its typed render context.
+
+Diagnostic:
+
+```sh
+weatherreporter inspect metadata RUN_ID
+```
+
+If metadata records generated-text and render-context paths, inspect those
+artifacts along with the template named by the report definition.
+
+Safe fix: update the embedded template or render-context builder so the
+template uses the implemented typed context.
+
+Relevant docs: [Report Templates](templates.md),
+[Report Template internals](internal/reporttemplate.md).
+
 ## Batch Command Returns Nonzero
 
 Symptom: `run morning` or `run evening` returns nonzero.
@@ -195,10 +241,115 @@ Diagnostic: inspect stdout for the JSON summary and stderr for compact status
 lines.
 
 Safe fix: use the failed report's artifact paths from the summary, then inspect
-metadata, sources, briefing, and data package for that RunID.
+metadata, sources, module snapshot, and data package for that RunID.
 
 Relevant docs: [CLI reference](cli.md), [Operations guide](operations.md).
 
+## Invalid Secrets Directory
+
+Symptom: config loading fails with `read secrets directory`, `secret file`, or
+environment variable name context.
+
+Likely cause: `secrets.directory` points to a missing directory or contains an
+invalid entry. Secret entries must be regular files directly under the
+configured directory, and file basenames must match
+`[A-Za-z_][A-Za-z0-9_]*`.
+
+Diagnostic: list the configured directory and inspect entry names and file
+types. Do not print secret file contents.
+
+Safe fix: create the directory, remove subdirectories or symlinks, fix invalid
+filenames, and ensure the weatherreporter process can read each secret file.
+
+Relevant docs: [Configuration reference](config.md).
+
+## Distributor Token Is Missing
+
+Symptom: notification fails with a message that the distributor token
+environment variable is not set.
+
+Likely cause: `notify.distributor.enabled` is true, but the environment
+variable named by `notify.distributor.token_env` was not populated directly or
+through `secrets.directory`.
+
+Diagnostic: check `notify.distributor.token_env`, then verify a matching secret
+file exists under `secrets.directory` or that the process environment includes
+the variable. Do not print the token value.
+
+Safe fix: create a readable secret file whose basename matches `token_env`, or
+set the environment variable through the service manager.
+
+Relevant docs: [Configuration reference](config.md),
+[Operations guide](operations.md).
+
+## Distributor Upload Conflict
+
+Symptom: notification fails with idempotency conflict context.
+
+Likely cause: the same idempotency key was reused for different bundle content
+within the same distributor token and pipeline. By default the bundle ID is a
+stable report-stream identity and the idempotency key appends RunID.
+
+Diagnostic: inspect the failed batch JSON or stderr line for pipeline, bundle,
+and idempotency context. Compare the configured templates with the report RunID
+and report path.
+
+Also inspect the notification artifact linked from metadata. It records the
+rendered pipeline ID, bundle ID, idempotency key, upload result, distributor run
+status, status error, and raw run report JSON when available.
+
+Safe fix: keep idempotency templates stable for retries of the same generated
+report, but do not reuse the same rendered key for different generated report
+content.
+
+Relevant docs: [Operations guide](operations.md),
+[Distributor adapter internals](internal/distributor-adapter.md).
+
+## Distributor Upload Rejected
+
+Symptom: notification fails with distributor upload rejection, HTTP status, or
+bundle validation context.
+
+Likely cause: the distributor endpoint rejected the token, pipeline ID, bundle
+ID, idempotency key, source file, or one of the rendered bundle paths.
+
+Diagnostic: inspect stdout JSON or stderr status lines for
+`notificationError`. Confirm `notify.distributor.endpoint`,
+`notify.distributor.pipeline_id_template`,
+`notify.distributor.report_path_templates`, and token configuration. Token
+values are redacted from weatherreporter errors.
+
+If the upload was accepted but destination output did not change, inspect the
+notification artifact's `runStatus.report`. Distributor actions such as
+`replace_older`, `skip_same`, `skip_destination_newer`, or `failed` explain how
+the destination handled the uploaded bundle.
+
+Safe fix: fix the endpoint, token, templates, or distributor-side upload
+configuration. The weatherreporter upload source is the managed Markdown report,
+not `--out` or `--out-dir` copies.
+
+Relevant docs: [Configuration reference](config.md),
+[Operations guide](operations.md),
+[Distributor adapter internals](internal/distributor-adapter.md).
+
+## Distributor Unavailable
+
+Symptom: notification fails with network, timeout, or service unavailable
+context.
+
+Likely cause: the configured distributor endpoint is unreachable, slow, or
+temporarily unavailable.
+
+Diagnostic: check network access from the weatherreporter host to
+`notify.distributor.endpoint`. For batch runs, inspect which reports have
+`notificationStatus: "failed"`.
+
+Safe fix: restore distributor service availability and rerun the affected
+report or batch. Stable idempotency keys make retrying the same generated report
+safe unless the distributor reports a conflict.
+
+Relevant docs: [Operations guide](operations.md).
+
 ## Unknown RunID
 
 Symptom: an inspect command fails with `metadata for run id ... was not found`.

examples/config.yml

@@ -11,6 +11,22 @@ location:
   name: Brentwood
   region: St. Louis Metro
 
+secrets:
+  directory: ""
+
+notify:
+  distributor:
+    enabled: false
+    endpoint: https://distributor.example.com
+    token_env: DISTRIBUTOR_UPLOAD_TOKEN
+    timeout: 30s
+    failure_policy: error
+    pipeline_id_template: "weatherreporter.{report_id}"
+    bundle_id_template: "weatherreporter.{location_id}.{report_id}"
+    idempotency_key_template: "{bundle_id}.{run_id}"
+    report_path_templates:
+      - "{valid_start_date}/{artifact_group}/{valid_start_date}-{artifact_group}-{run_id}.md"
+
 missing_source:
   default: warn
   sources:
@@ -26,6 +42,7 @@ workspace:
   reports_dir: reports
   data_packages_dir: data-packages
   preflight_dir: preflight
+  notifications_dir: notifications
 
 dayparts:
   - name: overnight
@@ -49,3 +66,64 @@ recent_change:
   precip_probability_points: 20
   wind_gust_miles_per_hour: 10
   precip_timing_shift_minutes: 120
+
+reports:
+  daily:
+    deterministic_modules:
+      - metadata
+      - current_conditions
+      - narrative_forecast
+      - derived_daily_summary
+      - derived_daypart_summaries
+      - precip_timing
+      - alert_digest
+      - spc_convective_outlooks
+      - id: area_forecast_discussion
+        options:
+          sections:
+            - product
+            - key_messages
+            - short_term
+            - long_term
+      - spc_convective_discussion
+      - weather_story
+      - outdoor_windows
+      - daily_planning
+      - hourly_forecast
+  today:
+    deterministic_modules:
+      - metadata
+      - current_conditions
+      - narrative_forecast
+      - derived_daily_summary
+      - derived_daypart_summaries
+      - precip_timing
+      - alert_digest
+      - spc_convective_outlooks
+      - id: area_forecast_discussion
+        options:
+          sections:
+            - product
+            - key_messages
+            - short_term
+            - long_term
+      - spc_convective_discussion
+      - weather_story
+      - outdoor_windows
+      - hourly_forecast
+      - today_planning
+  hourly:
+    deterministic_modules:
+      - metadata
+      - current_conditions
+      - hourly_forecast
+      - precip_timing
+      - alert_digest
+      - spc_convective_outlooks
+      - id: area_forecast_discussion
+        options:
+          sections:
+            - key_messages
+            - short_term
+      - spc_convective_discussion
+      - weather_story

go.mod

@@ -3,3 +3,5 @@ module gitea.maximumdirect.net/eric/weatherreporter
 go 1.26
 
 require gopkg.in/yaml.v3 v3.0.1
+
+require gitea.maximumdirect.net/eric/distributor v0.5.0

go.sum

@@ -1,3 +1,51 @@
+gitea.maximumdirect.net/eric/distributor v0.5.0 h1:+al7Bw+kMv6V35a3Sm5rUtCTQhwOn5b9x3RsclPMKJk=
+gitea.maximumdirect.net/eric/distributor v0.5.0/go.mod h1:G03FCFZPHpsUKC6SeMgTdbfNRpPQBdyTtDUj04e1Tu8=
+github.com/aws/aws-sdk-go-v2 v1.41.9 h1:/rYeyO2+HrMztAmxAq9++XJtFMqSIpSsNA0yDGALYq4=
+github.com/aws/aws-sdk-go-v2 v1.41.9/go.mod h1:+HsoOEX80qAVUitj1A2DhCNTjmb3edVyuDypb6LNEeo=
+github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.11 h1:h5+3VT69KUBK24grGuuA5saDJTj2IIjLb9au668Fo5I=
+github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.11/go.mod h1:dnakxebH6UwFvcvujL0LVggYQ8nEvBGjU4G/V79Nv94=
+github.com/aws/aws-sdk-go-v2/config v1.32.20 h1:8VMDnWc/kEzxsI/1ngGM9mG81a8IGmIHD8KLcYGwagc=
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internal/adapters/distributor/client.go

@@ -0,0 +1,371 @@
+// Package distributor adapts weatherreporter report artifacts to distributor uploads.
+package distributor
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	distributorbundle "gitea.maximumdirect.net/eric/distributor/pkg/bundle"
+	distributorupload "gitea.maximumdirect.net/eric/distributor/pkg/upload"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/config"
+)
+
+type Client struct {
+	Endpoint        string
+	TokenEnv        string
+	Timeout         time.Duration
+	newUploadClient uploadClientFactory
+}
+
+type UploadRequest struct {
+	PipelineID     string
+	BundleID       string
+	IdempotencyKey string
+	Files          []UploadFile
+	CreatedAt      time.Time
+}
+
+type UploadFile struct {
+	SourcePath string
+	BundlePath string
+}
+
+type UploadResult struct {
+	RunID        string
+	Status       string
+	UploadStatus string
+	StatusError  string
+	RunStatus    *RunStatus
+}
+
+type RunStatus struct {
+	RunID      string
+	PipelineID string
+	Status     string
+	AcceptedAt time.Time
+	StartedAt  *time.Time
+	FinishedAt *time.Time
+	Report     json.RawMessage
+	Error      string
+}
+
+type IdempotencyConflictError struct {
+	Err error
+}
+
+func (e *IdempotencyConflictError) Error() string {
+	if e == nil || e.Err == nil {
+		return "distributor idempotency conflict"
+	}
+	return e.Err.Error()
+}
+
+func (e *IdempotencyConflictError) Unwrap() error {
+	if e == nil {
+		return nil
+	}
+	return e.Err
+}
+
+type uploadClientFactory func(endpoint, token string, timeout time.Duration) (uploadClient, error)
+
+type uploadClient interface {
+	UploadFiles(ctx context.Context, opts uploadFilesOptions) (uploadFilesResult, error)
+	Status(ctx context.Context, runID string) (runStatus, error)
+}
+
+type uploadFilesOptions struct {
+	PipelineID     string
+	BundleID       string
+	IdempotencyKey string
+	Files          []UploadFile
+	CreatedAt      time.Time
+}
+
+type uploadFilesResult struct {
+	RunID  string
+	Status string
+}
+
+type runStatus struct {
+	RunID      string
+	PipelineID string
+	Status     string
+	AcceptedAt time.Time
+	StartedAt  *time.Time
+	FinishedAt *time.Time
+	Report     json.RawMessage
+	Error      string
+}
+
+const statusPollInterval = 250 * time.Millisecond
+
+func New(cfg config.DistributorNotifyConfig) *Client {
+	return newClient(cfg, newDistributorUploadClient)
+}
+
+func newClient(cfg config.DistributorNotifyConfig, factory uploadClientFactory) *Client {
+	if factory == nil {
+		factory = newDistributorUploadClient
+	}
+	return &Client{
+		Endpoint:        cfg.Endpoint,
+		TokenEnv:        cfg.TokenEnv,
+		Timeout:         cfg.Timeout,
+		newUploadClient: factory,
+	}
+}
+
+func (c *Client) Upload(ctx context.Context, req UploadRequest) (UploadResult, error) {
+	if c == nil {
+		return UploadResult{}, fmt.Errorf("distributor client is nil")
+	}
+	if c.Endpoint == "" {
+		return UploadResult{}, fmt.Errorf("distributor endpoint is required")
+	}
+	if c.TokenEnv == "" {
+		return UploadResult{}, fmt.Errorf("distributor token environment variable is required")
+	}
+	if req.PipelineID == "" {
+		return UploadResult{}, fmt.Errorf("distributor pipeline id is required")
+	}
+	if req.BundleID == "" {
+		return UploadResult{}, fmt.Errorf("distributor bundle id is required")
+	}
+	if req.IdempotencyKey == "" {
+		return UploadResult{}, fmt.Errorf("distributor idempotency key is required for bundle %q", req.BundleID)
+	}
+	if len(req.Files) == 0 {
+		return UploadResult{}, fmt.Errorf("distributor upload files are required for bundle %q", req.BundleID)
+	}
+	for i, file := range req.Files {
+		if file.SourcePath == "" {
+			return UploadResult{}, fmt.Errorf("distributor source path is required for bundle %q file %d", req.BundleID, i)
+		}
+		if file.BundlePath == "" {
+			return UploadResult{}, fmt.Errorf("distributor bundle path is required for bundle %q file %d", req.BundleID, i)
+		}
+	}
+	if c.newUploadClient == nil {
+		return UploadResult{}, fmt.Errorf("distributor upload client factory is required for endpoint %q", c.Endpoint)
+	}
+
+	token := os.Getenv(c.TokenEnv)
+	if token == "" {
+		return UploadResult{}, fmt.Errorf("distributor token environment variable %q is not set", c.TokenEnv)
+	}
+
+	uploadClient, err := c.newUploadClient(c.Endpoint, token, c.Timeout)
+	if err != nil {
+		return UploadResult{}, fmt.Errorf("create distributor upload client for endpoint %q: %w", c.Endpoint, redactToken(err, token))
+	}
+
+	runCtx := ctx
+	if runCtx == nil {
+		runCtx = context.Background()
+	}
+	cancel := func() {}
+	if c.Timeout > 0 {
+		runCtx, cancel = context.WithTimeout(runCtx, c.Timeout)
+	}
+	defer cancel()
+
+	result, err := uploadClient.UploadFiles(runCtx, uploadFilesOptions{
+		PipelineID:     req.PipelineID,
+		BundleID:       req.BundleID,
+		IdempotencyKey: req.IdempotencyKey,
+		Files:          append([]UploadFile(nil), req.Files...),
+		CreatedAt:      req.CreatedAt,
+	})
+	if err != nil {
+		return UploadResult{}, wrapUploadError(err, uploadErrorContext{
+			Endpoint:       c.Endpoint,
+			PipelineID:     req.PipelineID,
+			BundleID:       req.BundleID,
+			IdempotencyKey: req.IdempotencyKey,
+			SourcePaths:    uploadSourcePaths(req.Files),
+			BundlePaths:    uploadBundlePaths(req.Files),
+			Token:          token,
+		})
+	}
+
+	uploadResult := UploadResult{
+		RunID:        result.RunID,
+		Status:       result.Status,
+		UploadStatus: result.Status,
+	}
+	status, statusErr := waitForRunStatus(runCtx, uploadClient, result.RunID, c.Timeout > 0)
+	if status.RunID != "" || status.Status != "" {
+		uploadResult.RunStatus = &RunStatus{
+			RunID:      status.RunID,
+			PipelineID: status.PipelineID,
+			Status:     status.Status,
+			AcceptedAt: status.AcceptedAt,
+			StartedAt:  status.StartedAt,
+			FinishedAt: status.FinishedAt,
+			Report:     append(json.RawMessage(nil), status.Report...),
+			Error:      redactTokenString(status.Error, token),
+		}
+		if status.Status != "" {
+			uploadResult.Status = status.Status
+		}
+	}
+	if statusErr != nil {
+		uploadResult.StatusError = redactTokenString(statusErr.Error(), token)
+		return uploadResult, nil
+	}
+	if status.Status == "failed" {
+		return uploadResult, fmt.Errorf("distributor run %q failed: %s", status.RunID, uploadResult.RunStatus.Error)
+	}
+	return uploadResult, nil
+}
+
+func waitForRunStatus(ctx context.Context, client uploadClient, runID string, poll bool) (runStatus, error) {
+	status, err := client.Status(ctx, runID)
+	if err != nil || terminalRunStatus(status.Status) || !poll {
+		return status, err
+	}
+
+	for {
+		timer := time.NewTimer(statusPollInterval)
+		select {
+		case <-ctx.Done():
+			timer.Stop()
+			return status, fmt.Errorf("distributor run %q did not reach terminal status before timeout: %w", runID, ctx.Err())
+		case <-timer.C:
+		}
+
+		next, err := client.Status(ctx, runID)
+		if err != nil {
+			return status, err
+		}
+		status = next
+		if terminalRunStatus(status.Status) {
+			return status, nil
+		}
+	}
+}
+
+func terminalRunStatus(status string) bool {
+	return status == "succeeded" || status == "failed"
+}
+
+type distributorUploadClient struct {
+	client *distributorupload.Client
+}
+
+func newDistributorUploadClient(endpoint, token string, timeout time.Duration) (uploadClient, error) {
+	httpClient := (*http.Client)(nil)
+	if timeout > 0 {
+		httpClient = &http.Client{Timeout: timeout}
+	}
+	client, err := distributorupload.NewClient(distributorupload.ClientOptions{
+		Endpoint:   endpoint,
+		Token:      token,
+		HTTPClient: httpClient,
+	})
+	if err != nil {
+		return nil, err
+	}
+	return distributorUploadClient{client: client}, nil
+}
+
+func (c distributorUploadClient) UploadFiles(ctx context.Context, opts uploadFilesOptions) (uploadFilesResult, error) {
+	files := make([]distributorbundle.BundleFile, 0, len(opts.Files))
+	for _, file := range opts.Files {
+		files = append(files, distributorbundle.BundleFile{
+			SourcePath: file.SourcePath,
+			Path:       file.BundlePath,
+		})
+	}
+	result, err := c.client.UploadFiles(ctx, distributorupload.UploadFilesOptions{
+		PipelineID:     opts.PipelineID,
+		ID:             opts.BundleID,
+		Created:        opts.CreatedAt,
+		IdempotencyKey: opts.IdempotencyKey,
+		Files:          files,
+	})
+	if err != nil {
+		return uploadFilesResult{}, err
+	}
+	return uploadFilesResult{
+		RunID:  result.RunID,
+		Status: result.Status,
+	}, nil
+}
+
+func (c distributorUploadClient) Status(ctx context.Context, runID string) (runStatus, error) {
+	status, err := c.client.Status(ctx, runID)
+	if err != nil {
+		return runStatus{}, err
+	}
+	return runStatus{
+		RunID:      status.RunID,
+		PipelineID: status.PipelineID,
+		Status:     status.Status,
+		AcceptedAt: status.AcceptedAt,
+		StartedAt:  status.StartedAt,
+		FinishedAt: status.FinishedAt,
+		Report:     append(json.RawMessage(nil), status.Report...),
+		Error:      status.Error,
+	}, nil
+}
+
+type uploadErrorContext struct {
+	Endpoint       string
+	PipelineID     string
+	BundleID       string
+	IdempotencyKey string
+	SourcePaths    []string
+	BundlePaths    []string
+	Token          string
+}
+
+func wrapUploadError(err error, ctx uploadErrorContext) error {
+	var conflict *distributorupload.IdempotencyConflictError
+	isConflict := errors.As(err, &conflict)
+	err = redactToken(err, ctx.Token)
+	if isConflict {
+		return &IdempotencyConflictError{
+			Err: fmt.Errorf("upload distributor bundle %q to pipeline %q at endpoint %q with idempotency key %q from sources %q as bundle paths %q: idempotency conflict: %w", ctx.BundleID, ctx.PipelineID, ctx.Endpoint, ctx.IdempotencyKey, ctx.SourcePaths, ctx.BundlePaths, err),
+		}
+	}
+	return fmt.Errorf("upload distributor bundle %q to pipeline %q at endpoint %q with idempotency key %q from sources %q as bundle paths %q: %w", ctx.BundleID, ctx.PipelineID, ctx.Endpoint, ctx.IdempotencyKey, ctx.SourcePaths, ctx.BundlePaths, err)
+}
+
+func uploadSourcePaths(files []UploadFile) []string {
+	paths := make([]string, 0, len(files))
+	for _, file := range files {
+		paths = append(paths, file.SourcePath)
+	}
+	return paths
+}
+
+func uploadBundlePaths(files []UploadFile) []string {
+	paths := make([]string, 0, len(files))
+	for _, file := range files {
+		paths = append(paths, file.BundlePath)
+	}
+	return paths
+}
+
+func redactToken(err error, token string) error {
+	if err == nil || token == "" {
+		return err
+	}
+	return errors.New(redactTokenString(err.Error(), token))
+}
+
+func redactTokenString(value, token string) string {
+	if token == "" {
+		return value
+	}
+	return strings.ReplaceAll(value, token, "[redacted]")
+}

internal/adapters/distributor/client_test.go

@@ -0,0 +1,406 @@
+package distributor
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strings"
+	"testing"
+	"time"
+
+	distributorupload "gitea.maximumdirect.net/eric/distributor/pkg/upload"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/config"
+)
+
+func TestUploadUsesConfiguredClientAndFiles(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	cfg.Endpoint = "https://distributor.example.test"
+	cfg.TokenEnv = "DISTRIBUTOR_UPLOAD_TOKEN"
+	cfg.Timeout = 15 * time.Second
+	t.Setenv(cfg.TokenEnv, "secret-token")
+
+	factory := &fakeUploadFactory{
+		client: &fakeUploadClient{
+			result: uploadFilesResult{RunID: "run-123", Status: "accepted"},
+			status: runStatus{RunID: "run-123", PipelineID: "reports", Status: "succeeded", Report: json.RawMessage(`{"actions":[{"action":"replace_older"}]}`)},
+		},
+	}
+	client := newClient(cfg, factory.newClient)
+
+	result, err := client.Upload(context.Background(), UploadRequest{
+		PipelineID:     "weatherreporter.daily",
+		BundleID:       "weatherreporter.home.daily.run",
+		IdempotencyKey: "weatherreporter.home.daily.run",
+		Files: []UploadFile{
+			{SourcePath: "/tmp/report.md", BundlePath: "2026-06-07/daily/report.md"},
+			{SourcePath: "/tmp/report.md", BundlePath: "2026-06-07/daily/latest.md"},
+		},
+		CreatedAt: time.Date(2026, 6, 7, 12, 0, 0, 123, time.UTC),
+	})
+	if err != nil {
+		t.Fatalf("Upload() error = %v", err)
+	}
+	if result.RunID != "run-123" || result.Status != "succeeded" || result.UploadStatus != "accepted" {
+		t.Fatalf("result = %#v, want accepted run", result)
+	}
+	if result.RunStatus == nil || result.RunStatus.PipelineID != "reports" || !strings.Contains(string(result.RunStatus.Report), "replace_older") {
+		t.Fatalf("RunStatus = %#v, want parsed run report", result.RunStatus)
+	}
+	if factory.endpoint != cfg.Endpoint {
+		t.Fatalf("factory endpoint = %q, want %q", factory.endpoint, cfg.Endpoint)
+	}
+	if factory.token != "secret-token" {
+		t.Fatalf("factory token = %q, want secret-token", factory.token)
+	}
+	if factory.timeout != 15*time.Second {
+		t.Fatalf("factory timeout = %s, want 15s", factory.timeout)
+	}
+	got := factory.client.opts
+	if got.PipelineID != "weatherreporter.daily" {
+		t.Fatalf("PipelineID = %q, want weatherreporter.daily", got.PipelineID)
+	}
+	if got.BundleID != "weatherreporter.home.daily.run" {
+		t.Fatalf("BundleID = %q, want weatherreporter.home.daily.run", got.BundleID)
+	}
+	if got.IdempotencyKey != "weatherreporter.home.daily.run" {
+		t.Fatalf("IdempotencyKey = %q, want weatherreporter.home.daily.run", got.IdempotencyKey)
+	}
+	if len(got.Files) != 2 {
+		t.Fatalf("files = %#v, want two mappings", got.Files)
+	}
+	if got.Files[0].SourcePath != "/tmp/report.md" || got.Files[0].BundlePath != "2026-06-07/daily/report.md" {
+		t.Fatalf("first file = %#v, want archive mapping", got.Files[0])
+	}
+	if got.Files[1].SourcePath != "/tmp/report.md" || got.Files[1].BundlePath != "2026-06-07/daily/latest.md" {
+		t.Fatalf("second file = %#v, want latest mapping", got.Files[1])
+	}
+	if got.CreatedAt.IsZero() {
+		t.Fatal("CreatedAt is zero, want generated report timestamp")
+	}
+	if factory.client.statusRunID != "run-123" {
+		t.Fatalf("Status runID = %q, want run-123", factory.client.statusRunID)
+	}
+}
+
+func TestUploadRejectsMissingInputs(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	t.Setenv(cfg.TokenEnv, "secret-token")
+
+	tests := []struct {
+		name    string
+		mutate  func(*Client, *UploadRequest)
+		wantErr string
+	}{
+		{
+			name: "Token",
+			mutate: func(c *Client, req *UploadRequest) {
+				t.Setenv(c.TokenEnv, "")
+			},
+			wantErr: "token environment variable",
+		},
+		{
+			name: "PipelineID",
+			mutate: func(c *Client, req *UploadRequest) {
+				req.PipelineID = ""
+			},
+			wantErr: "pipeline id is required",
+		},
+		{
+			name: "Files",
+			mutate: func(c *Client, req *UploadRequest) {
+				req.Files = nil
+			},
+			wantErr: "upload files are required",
+		},
+		{
+			name: "SourcePath",
+			mutate: func(c *Client, req *UploadRequest) {
+				req.Files[0].SourcePath = ""
+			},
+			wantErr: "source path is required",
+		},
+		{
+			name: "BundlePath",
+			mutate: func(c *Client, req *UploadRequest) {
+				req.Files[0].BundlePath = ""
+			},
+			wantErr: "bundle path is required",
+		},
+		{
+			name: "UploadClientFactory",
+			mutate: func(c *Client, req *UploadRequest) {
+				c.newUploadClient = nil
+			},
+			wantErr: "upload client factory is required",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Setenv(cfg.TokenEnv, "secret-token")
+			client := newClient(cfg, (&fakeUploadFactory{client: &fakeUploadClient{}}).newClient)
+			req := validUploadRequest()
+			tt.mutate(client, &req)
+
+			_, err := client.Upload(context.Background(), req)
+			if err == nil {
+				t.Fatal("Upload() error = nil, want error")
+			}
+			if !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("error = %q, want %q", err.Error(), tt.wantErr)
+			}
+			if strings.Contains(err.Error(), "secret-token") {
+				t.Fatalf("error = %q, want no token value", err.Error())
+			}
+		})
+	}
+}
+
+func TestUploadWrapsFactoryErrorWithoutToken(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	cfg.Endpoint = "https://distributor.example.test"
+	t.Setenv(cfg.TokenEnv, "secret-token")
+	factory := &fakeUploadFactory{
+		err: fmt.Errorf("factory failed with secret-token"),
+	}
+	client := newClient(cfg, factory.newClient)
+
+	_, err := client.Upload(context.Background(), validUploadRequest())
+	if err == nil {
+		t.Fatal("Upload() error = nil, want error")
+	}
+	if strings.Contains(err.Error(), "secret-token") {
+		t.Fatalf("error = %q, want no token value", err.Error())
+	}
+	if !strings.Contains(err.Error(), cfg.Endpoint) {
+		t.Fatalf("error = %q, want endpoint context", err.Error())
+	}
+}
+
+func TestUploadWrapsUploadFailureWithContextWithoutToken(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	cfg.Endpoint = "https://distributor.example.test"
+	t.Setenv(cfg.TokenEnv, "secret-token")
+	factory := &fakeUploadFactory{
+		client: &fakeUploadClient{err: fmt.Errorf("server rejected secret-token")},
+	}
+	client := newClient(cfg, factory.newClient)
+	req := validUploadRequest()
+
+	_, err := client.Upload(context.Background(), req)
+	if err == nil {
+		t.Fatal("Upload() error = nil, want error")
+	}
+	for _, want := range []string{cfg.Endpoint, req.PipelineID, req.BundleID, req.IdempotencyKey, req.Files[0].SourcePath, req.Files[0].BundlePath, req.Files[1].BundlePath} {
+		if !strings.Contains(err.Error(), want) {
+			t.Fatalf("error = %q, want context %q", err.Error(), want)
+		}
+	}
+	if strings.Contains(err.Error(), "secret-token") {
+		t.Fatalf("error = %q, want no token value", err.Error())
+	}
+}
+
+func TestUploadReturnsAcceptedWhenStatusLookupFails(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	cfg.Endpoint = "https://distributor.example.test"
+	t.Setenv(cfg.TokenEnv, "secret-token")
+	factory := &fakeUploadFactory{
+		client: &fakeUploadClient{
+			result:    uploadFilesResult{RunID: "run-123", Status: "accepted"},
+			statusErr: fmt.Errorf("status rejected secret-token"),
+		},
+	}
+	client := newClient(cfg, factory.newClient)
+
+	result, err := client.Upload(context.Background(), validUploadRequest())
+	if err != nil {
+		t.Fatalf("Upload() error = %v, want accepted upload despite status lookup failure", err)
+	}
+	if result.Status != "accepted" || result.StatusError == "" {
+		t.Fatalf("result = %#v, want accepted status with status error", result)
+	}
+	if strings.Contains(result.StatusError, "secret-token") {
+		t.Fatalf("StatusError = %q, want token redacted", result.StatusError)
+	}
+}
+
+func TestUploadPollsUntilTerminalStatus(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	cfg.Endpoint = "https://distributor.example.test"
+	cfg.Timeout = 2 * time.Second
+	t.Setenv(cfg.TokenEnv, "secret-token")
+	factory := &fakeUploadFactory{
+		client: &fakeUploadClient{
+			result: uploadFilesResult{RunID: "run-123", Status: "accepted"},
+			statuses: []runStatus{
+				{RunID: "run-123", Status: "accepted"},
+				{RunID: "run-123", Status: "succeeded", Report: json.RawMessage(`{"actions":[{"action":"replace_older"}]}`)},
+			},
+		},
+	}
+	client := newClient(cfg, factory.newClient)
+
+	result, err := client.Upload(context.Background(), validUploadRequest())
+	if err != nil {
+		t.Fatalf("Upload() error = %v", err)
+	}
+	if result.Status != "succeeded" || result.RunStatus == nil || !strings.Contains(string(result.RunStatus.Report), "replace_older") {
+		t.Fatalf("result = %#v, want terminal succeeded status with run report", result)
+	}
+	if factory.client.statusCalls != 2 {
+		t.Fatalf("status calls = %d, want 2", factory.client.statusCalls)
+	}
+}
+
+func TestUploadReturnsLatestStatusWhenPollingTimesOut(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	cfg.Endpoint = "https://distributor.example.test"
+	cfg.Timeout = time.Millisecond
+	t.Setenv(cfg.TokenEnv, "secret-token")
+	factory := &fakeUploadFactory{
+		client: &fakeUploadClient{
+			result: uploadFilesResult{RunID: "run-123", Status: "accepted"},
+			status: runStatus{RunID: "run-123", Status: "running"},
+		},
+	}
+	client := newClient(cfg, factory.newClient)
+
+	result, err := client.Upload(context.Background(), validUploadRequest())
+	if err != nil {
+		t.Fatalf("Upload() error = %v, want accepted upload with status timeout recorded", err)
+	}
+	if result.Status != "running" || result.StatusError == "" {
+		t.Fatalf("result = %#v, want latest status and status timeout", result)
+	}
+}
+
+func TestUploadFailsWhenDistributorRunFailed(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	cfg.Endpoint = "https://distributor.example.test"
+	t.Setenv(cfg.TokenEnv, "secret-token")
+	factory := &fakeUploadFactory{
+		client: &fakeUploadClient{
+			result: uploadFilesResult{RunID: "run-123", Status: "accepted"},
+			status: runStatus{
+				RunID:  "run-123",
+				Status: "failed",
+				Error:  "destination rejected secret-token",
+				Report: json.RawMessage(`{"actions":[{"action":"failed"}]}`),
+			},
+		},
+	}
+	client := newClient(cfg, factory.newClient)
+
+	result, err := client.Upload(context.Background(), validUploadRequest())
+	if err == nil {
+		t.Fatal("Upload() error = nil, want failed distributor run error")
+	}
+	if result.RunStatus == nil || result.RunStatus.Status != "failed" || !strings.Contains(string(result.RunStatus.Report), "failed") {
+		t.Fatalf("result = %#v, want failed run status report", result)
+	}
+	if strings.Contains(err.Error(), "secret-token") || strings.Contains(result.RunStatus.Error, "secret-token") {
+		t.Fatalf("error/result leaked token: err=%q result=%#v", err.Error(), result)
+	}
+}
+
+func TestUploadPreservesIdempotencyConflictDiagnosis(t *testing.T) {
+	cfg := config.Defaults().Notify.Distributor
+	cfg.Endpoint = "https://distributor.example.test"
+	t.Setenv(cfg.TokenEnv, "secret-token")
+	factory := &fakeUploadFactory{
+		client: &fakeUploadClient{
+			err: &distributorupload.IdempotencyConflictError{
+				HTTPError: distributorupload.HTTPError{
+					StatusCode: 409,
+					Status:     "409 Conflict",
+					Message:    "conflicting upload for secret-token",
+				},
+			},
+		},
+	}
+	client := newClient(cfg, factory.newClient)
+
+	_, err := client.Upload(context.Background(), validUploadRequest())
+	if err == nil {
+		t.Fatal("Upload() error = nil, want error")
+	}
+	var conflict *IdempotencyConflictError
+	if !errors.As(err, &conflict) {
+		t.Fatalf("Upload() error = %T %v, want IdempotencyConflictError", err, err)
+	}
+	if !strings.Contains(err.Error(), "idempotency conflict") {
+		t.Fatalf("error = %q, want idempotency conflict diagnosis", err.Error())
+	}
+	if strings.Contains(err.Error(), "secret-token") {
+		t.Fatalf("error = %q, want no token value", err.Error())
+	}
+}
+
+func validUploadRequest() UploadRequest {
+	return UploadRequest{
+		PipelineID:     "weatherreporter.daily",
+		BundleID:       "weatherreporter.home.daily.run",
+		IdempotencyKey: "weatherreporter.home.daily.run",
+		Files: []UploadFile{
+			{SourcePath: "/tmp/report.md", BundlePath: "2026-06-07/daily/report.md"},
+			{SourcePath: "/tmp/report.md", BundlePath: "2026-06-07/daily/latest.md"},
+		},
+		CreatedAt: time.Date(2026, 6, 7, 12, 0, 0, 123, time.UTC),
+	}
+}
+
+type fakeUploadFactory struct {
+	endpoint string
+	token    string
+	timeout  time.Duration
+	client   *fakeUploadClient
+	err      error
+}
+
+func (f *fakeUploadFactory) newClient(endpoint, token string, timeout time.Duration) (uploadClient, error) {
+	f.endpoint = endpoint
+	f.token = token
+	f.timeout = timeout
+	if f.err != nil {
+		return nil, f.err
+	}
+	return f.client, nil
+}
+
+type fakeUploadClient struct {
+	opts        uploadFilesOptions
+	statusRunID string
+	statusCalls int
+	result      uploadFilesResult
+	status      runStatus
+	statuses    []runStatus
+	err         error
+	statusErr   error
+}
+
+func (c *fakeUploadClient) UploadFiles(ctx context.Context, opts uploadFilesOptions) (uploadFilesResult, error) {
+	c.opts = opts
+	if c.err != nil {
+		return uploadFilesResult{}, c.err
+	}
+	return c.result, nil
+}
+
+func (c *fakeUploadClient) Status(ctx context.Context, runID string) (runStatus, error) {
+	c.statusRunID = runID
+	c.statusCalls++
+	if c.statusErr != nil {
+		return runStatus{}, c.statusErr
+	}
+	if len(c.statuses) > 0 {
+		index := c.statusCalls - 1
+		if index >= len(c.statuses) {
+			index = len(c.statuses) - 1
+		}
+		return c.statuses[index], nil
+	}
+	return c.status, nil
+}

internal/adapters/scriptorium/runner.go

@@ -79,6 +79,12 @@ type RunRequest struct {
 	OutputPath      string
 }
 
+type StructuredRunRequest struct {
+	PromptID        string
+	DataPackagePath string
+	OutputPath      string
+}
+
 type RenderResult struct {
 	Command         []string `json:"command"`
 	Stdout          string   `json:"stdout"`
@@ -98,6 +104,16 @@ type RunResult struct {
 	OutputPath      string   `json:"outputPath"`
 }
 
+type StructuredRunResult struct {
+	Command         []string `json:"command"`
+	Stdout          string   `json:"stdout"`
+	Stderr          string   `json:"stderr"`
+	StdoutTruncated bool     `json:"stdoutTruncated,omitempty"`
+	StderrTruncated bool     `json:"stderrTruncated,omitempty"`
+	ExitCode        int      `json:"exitCode"`
+	OutputPath      string   `json:"outputPath"`
+}
+
 func (r Runner) Render(ctx context.Context, req RenderRequest) (*RenderResult, error) {
 	if req.PromptID == "" {
 		return nil, fmt.Errorf("prompt id is required")
@@ -152,6 +168,35 @@ func (r Runner) Run(ctx context.Context, req RunRequest) (*RunResult, error) {
 	return result, nil
 }
 
+func (r Runner) StructuredRun(ctx context.Context, req StructuredRunRequest) (*StructuredRunResult, error) {
+	if req.PromptID == "" {
+		return nil, fmt.Errorf("prompt id is required")
+	}
+	if req.DataPackagePath == "" {
+		return nil, fmt.Errorf("data package path is required")
+	}
+	if req.OutputPath == "" {
+		return nil, fmt.Errorf("output path is required")
+	}
+	execution, err := r.execute(ctx, r.structuredRunArgs(req))
+	if err != nil {
+		return nil, fmt.Errorf("run scriptorium structured output: %w", err)
+	}
+	result := &StructuredRunResult{
+		Command:         execution.argv(),
+		Stdout:          string(execution.result.Stdout),
+		Stderr:          string(execution.result.Stderr),
+		StdoutTruncated: execution.result.StdoutTruncated,
+		StderrTruncated: execution.result.StderrTruncated,
+		ExitCode:        execution.result.ExitCode,
+		OutputPath:      req.OutputPath,
+	}
+	if execution.result.ExitCode != 0 {
+		return result, fmt.Errorf("scriptorium structured run exited with code %d: %s", execution.result.ExitCode, result.Stderr)
+	}
+	return result, nil
+}
+
 type execution struct {
 	binary string
 	args   []string
@@ -212,6 +257,14 @@ func (r Runner) runArgs(req RunRequest) []string {
 	return args
 }
 
+func (r Runner) structuredRunArgs(req StructuredRunRequest) []string {
+	return r.runArgs(RunRequest{
+		PromptID:        req.PromptID,
+		DataPackagePath: req.DataPackagePath,
+		OutputPath:      req.OutputPath,
+	})
+}
+
 type limitedBuffer struct {
 	data      []byte
 	limit     int

internal/adapters/scriptorium/runner_test.go

@@ -19,8 +19,8 @@ func TestRenderConstructsCommand(t *testing.T) {
 	}
 
 	result, err := runner.Render(context.Background(), RenderRequest{
-		PromptID:        "weather.daily_report",
+		PromptID:        "weather.markdown_report",
-		DataPackagePath: "/tmp/data_package.json",
+		DataPackagePath: "/tmp/data_package.yaml",
 	})
 	if err != nil {
 		t.Fatalf("Render() error = %v", err)
@@ -30,8 +30,8 @@ func TestRenderConstructsCommand(t *testing.T) {
 		"render",
 		"--config", "/etc/scriptorium.yml",
 		"--profile", "weather",
-		"--prompt", "weather.daily_report",
+		"--prompt", "weather.markdown_report",
-		"--input", "data_package=/tmp/data_package.json",
+		"--input", "data_package=/tmp/data_package.yaml",
 		"--format", "json",
 	}
 	if commands.name != "/usr/local/bin/scriptorium" {
@@ -56,8 +56,8 @@ func TestRenderReturnsResultForNonzeroExit(t *testing.T) {
 	}
 
 	result, err := runner.Render(context.Background(), RenderRequest{
-		PromptID:        "weather.daily_report",
+		PromptID:        "weather.markdown_report",
-		DataPackagePath: "/tmp/data_package.json",
+		DataPackagePath: "/tmp/data_package.yaml",
 	})
 	if err == nil {
 		t.Fatal("Render() error = nil, want nonzero exit error")
@@ -84,8 +84,8 @@ func TestRunConstructsCommand(t *testing.T) {
 	}
 
 	result, err := runner.Run(context.Background(), RunRequest{
-		PromptID:        "weather.daily_report",
+		PromptID:        "weather.markdown_report",
-		DataPackagePath: "/tmp/data_package.json",
+		DataPackagePath: "/tmp/data_package.yaml",
 		OutputPath:      "/tmp/daily.md",
 	})
 	if err != nil {
@@ -96,8 +96,8 @@ func TestRunConstructsCommand(t *testing.T) {
 		"run",
 		"--config", "/etc/scriptorium.yml",
 		"--profile", "weather",
-		"--prompt", "weather.daily_report",
+		"--prompt", "weather.markdown_report",
-		"--input", "data_package=/tmp/data_package.json",
+		"--input", "data_package=/tmp/data_package.yaml",
 		"--out", "/tmp/daily.md",
 	}
 	if commands.name != "/usr/local/bin/scriptorium" {
@@ -129,8 +129,8 @@ func TestRunReturnsResultForValidationExit(t *testing.T) {
 	}
 
 	result, err := runner.Run(context.Background(), RunRequest{
-		PromptID:        "weather.daily_report",
+		PromptID:        "weather.markdown_report",
-		DataPackagePath: "/tmp/data_package.json",
+		DataPackagePath: "/tmp/data_package.yaml",
 		OutputPath:      "/tmp/daily.md",
 	})
 	if err == nil {
@@ -147,17 +147,169 @@ func TestRunReturnsResultForValidationExit(t *testing.T) {
 	}
 }
 
+func TestStructuredRunConstructsCommandWithoutSchemaFlags(t *testing.T) {
+	commands := &fakeCommands{result: CommandResult{
+		Stdout:          []byte(`{"summary":"ok"}`),
+		Stderr:          []byte("wrote generated text"),
+		StdoutTruncated: true,
+	}}
+	runner := Runner{
+		Binary:     "/usr/local/bin/scriptorium",
+		ConfigPath: "/etc/scriptorium.yml",
+		Profile:    "weather",
+		Timeout:    30 * time.Second,
+		Commands:   commands,
+	}
+
+	result, err := runner.StructuredRun(context.Background(), StructuredRunRequest{
+		PromptID:        "weather.hourly_generated_text",
+		DataPackagePath: "/tmp/hourly.data_package.yaml",
+		OutputPath:      "/tmp/hourly.generated_text.raw.json",
+	})
+	if err != nil {
+		t.Fatalf("StructuredRun() error = %v", err)
+	}
+
+	wantArgs := []string{
+		"run",
+		"--config", "/etc/scriptorium.yml",
+		"--profile", "weather",
+		"--prompt", "weather.hourly_generated_text",
+		"--input", "data_package=/tmp/hourly.data_package.yaml",
+		"--out", "/tmp/hourly.generated_text.raw.json",
+	}
+	if commands.name != "/usr/local/bin/scriptorium" {
+		t.Fatalf("command name = %q, want custom binary", commands.name)
+	}
+	if !reflect.DeepEqual(commands.args, wantArgs) {
+		t.Fatalf("args = %#v, want %#v", commands.args, wantArgs)
+	}
+	for _, disallowed := range []string{"--format", "--schema", "--schema-path", "--json-schema"} {
+		if containsArg(commands.args, disallowed) {
+			t.Fatalf("args = %#v, should not include %q", commands.args, disallowed)
+		}
+	}
+	if commands.timeout != 30*time.Second {
+		t.Fatalf("timeout = %s, want 30s", commands.timeout)
+	}
+	if !reflect.DeepEqual(result.Command, append([]string{"/usr/local/bin/scriptorium"}, wantArgs...)) {
+		t.Fatalf("result command = %#v, want full argv", result.Command)
+	}
+	if result.Stdout != `{"summary":"ok"}` || result.Stderr != "wrote generated text" || !result.StdoutTruncated {
+		t.Fatalf("result = %#v, want captured output and truncation flags", result)
+	}
+	if result.OutputPath != "/tmp/hourly.generated_text.raw.json" {
+		t.Fatalf("OutputPath = %q, want generated text raw path", result.OutputPath)
+	}
+}
+
+func TestStructuredRunReturnsResultForNonzeroExit(t *testing.T) {
+	runner := Runner{
+		Commands: &fakeCommands{
+			result: CommandResult{
+				Stdout:   []byte(`{"summary":"partial"}`),
+				Stderr:   []byte("structured output failed"),
+				ExitCode: 3,
+			},
+		},
+	}
+
+	result, err := runner.StructuredRun(context.Background(), StructuredRunRequest{
+		PromptID:        "weather.hourly_generated_text",
+		DataPackagePath: "/tmp/hourly.data_package.yaml",
+		OutputPath:      "/tmp/hourly.generated_text.raw.json",
+	})
+	if err == nil {
+		t.Fatal("StructuredRun() error = nil, want nonzero exit error")
+	}
+	if result == nil {
+		t.Fatal("StructuredRun() result = nil, want captured result")
+	}
+	if result.ExitCode != 3 {
+		t.Fatalf("ExitCode = %d, want 3", result.ExitCode)
+	}
+	if result.Stdout != `{"summary":"partial"}` || result.OutputPath != "/tmp/hourly.generated_text.raw.json" {
+		t.Fatalf("result = %#v, want captured result fields", result)
+	}
+	if !strings.Contains(err.Error(), "structured output failed") {
+		t.Fatalf("error = %q, want stderr context", err.Error())
+	}
+}
+
+func TestStructuredRunValidatesRequiredFieldsBeforeExecution(t *testing.T) {
+	tests := []struct {
+		name string
+		req  StructuredRunRequest
+		want string
+	}{
+		{
+			name: "prompt id",
+			req: StructuredRunRequest{
+				DataPackagePath: "/tmp/hourly.data_package.yaml",
+				OutputPath:      "/tmp/hourly.generated_text.raw.json",
+			},
+			want: "prompt id is required",
+		},
+		{
+			name: "data package path",
+			req: StructuredRunRequest{
+				PromptID:   "weather.hourly_generated_text",
+				OutputPath: "/tmp/hourly.generated_text.raw.json",
+			},
+			want: "data package path is required",
+		},
+		{
+			name: "output path",
+			req: StructuredRunRequest{
+				PromptID:        "weather.hourly_generated_text",
+				DataPackagePath: "/tmp/hourly.data_package.yaml",
+			},
+			want: "output path is required",
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			commands := &fakeCommands{}
+			runner := Runner{Commands: commands}
+			result, err := runner.StructuredRun(context.Background(), test.req)
+			if err == nil {
+				t.Fatal("StructuredRun() error = nil, want validation error")
+			}
+			if result != nil {
+				t.Fatalf("StructuredRun() result = %#v, want nil", result)
+			}
+			if !strings.Contains(err.Error(), test.want) {
+				t.Fatalf("StructuredRun() error = %v, want %q", err, test.want)
+			}
+			if commands.calls != 0 {
+				t.Fatalf("commands calls = %d, want no subprocess execution", commands.calls)
+			}
+		})
+	}
+}
+
 type fakeCommands struct {
 	name    string
 	args    []string
 	timeout time.Duration
 	result  CommandResult
 	err     error
+	calls   int
 }
 
 func (f *fakeCommands) Run(_ context.Context, name string, args []string, timeout time.Duration) (CommandResult, error) {
+	f.calls++
 	f.name = name
 	f.args = append([]string{}, args...)
 	f.timeout = timeout
 	return f.result, f.err
 }
+
+func containsArg(args []string, want string) bool {
+	for _, arg := range args {
+		if arg == want {
+			return true
+		}
+	}
+	return false
+}

internal/adapters/weatherapi/client.go

@@ -1,4 +1,4 @@
-// Package weatherapi adapts the internal weather API to forecast bundles.
+// Package weatherapi adapts the internal weather API to weather data bundles.
 package weatherapi
 
 import (
@@ -18,7 +18,12 @@ import (
 
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/config"
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/fileutil"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+const (
+	convectiveOutlooksEndpoint  = "/outlooks/convective"
+	sourceSPCConvectiveOutlooks = "spc_convective_outlooks"
 )
 
 type Client struct {
@@ -83,11 +88,11 @@ func New(cfg config.Config, opts ...Option) (*Client, error) {
 	return client, nil
 }
 
-func (c *Client) FetchBundle(ctx context.Context) (*forecast.Bundle, error) {
+func (c *Client) FetchBundle(ctx context.Context) (*weatherdata.Bundle, error) {
 	fetchedAt := c.now()
 	builder := bundleBuilder{
 		client:    c,
-		bundle:    &forecast.Bundle{FetchedAt: fetchedAt},
+		bundle:    &weatherdata.Bundle{FetchedAt: fetchedAt},
 		fetchedAt: fetchedAt,
 	}
 
@@ -109,10 +114,10 @@ func (c *Client) FetchBundle(ctx context.Context) (*forecast.Bundle, error) {
 	if err := builder.fetchDiscussion(ctx); err != nil {
 		return nil, err
 	}
-	if err := builder.addStub("daily", "daily forecast data is not available from the weather API yet"); err != nil {
+	if err := builder.fetchWeatherStory(ctx); err != nil {
 		return nil, err
 	}
-	if err := builder.addStub("weather_story", "NWS weather story is not available from the weather API yet"); err != nil {
+	if err := builder.fetchSPCConvectiveOutlooks(ctx); err != nil {
 		return nil, err
 	}
 
@@ -121,22 +126,36 @@ func (c *Client) FetchBundle(ctx context.Context) (*forecast.Bundle, error) {
 
 type bundleBuilder struct {
 	client    *Client
-	bundle    *forecast.Bundle
+	bundle    *weatherdata.Bundle
 	fetchedAt time.Time
 }
 
+type sourceRequest struct {
+	name           string
+	endpoint       string
+	query          queryOptions
+	missingMessage string
+	required       bool
+	decodeLabel    string
+}
+
+type fetchedSource struct {
+	raw    json.RawMessage
+	source weatherdata.Source
+}
+
 func (b *bundleBuilder) fetchObservation(ctx context.Context) error {
-	raw, source, err := b.client.fetch(ctx, "observations", "/observations", queryOptions{precision: true})
+	var observation weatherdata.Observation
-	if err != nil {
+	fetched, ok, err := b.fetchDecodedSource(ctx, sourceRequest{
+		name:           "observations",
+		endpoint:       "/observations",
+		query:          queryOptions{precision: true},
+		missingMessage: "observation data is missing",
+	}, &observation)
+	if err != nil || !ok {
 		return err
 	}
-	if raw == nil {
+	source := fetched.source
-		return b.handleMissing(&source, "observation data is missing", false)
-	}
-	var observation forecast.Observation
-	if err := decodeSource(raw, &observation); err != nil {
-		return b.handleMalformed(&source, err, false)
-	}
 	source.IssuedAt = &observation.Timestamp
 	b.bundle.Observation = &observation
 	b.addSource(source)
@@ -144,34 +163,36 @@ func (b *bundleBuilder) fetchObservation(ctx context.Context) error {
 }
 
 func (b *bundleBuilder) fetchCurrent(ctx context.Context) error {
-	raw, source, err := b.client.fetch(ctx, "current", "/conditions/current", queryOptions{precision: true})
+	var current weatherdata.Current
-	if err != nil {
+	fetched, ok, err := b.fetchDecodedSource(ctx, sourceRequest{
+		name:           "current",
+		endpoint:       "/conditions/current",
+		query:          queryOptions{precision: true},
+		missingMessage: "current conditions data is missing",
+	}, &current)
+	if err != nil || !ok {
 		return err
 	}
-	if raw == nil {
+	source := fetched.source
-		return b.handleMissing(&source, "current conditions data is missing", false)
-	}
-	var current forecast.Current
-	if err := decodeSource(raw, &current); err != nil {
-		return b.handleMalformed(&source, err, false)
-	}
 	b.bundle.Current = &current
 	b.addSource(source)
 	return nil
 }
 
 func (b *bundleBuilder) fetchHourly(ctx context.Context) error {
-	raw, source, err := b.client.fetch(ctx, "hourly", "/forecast/hourly", queryOptions{precision: true, timezone: true})
+	var hourly weatherdata.ForecastRun
-	if err != nil {
+	fetched, ok, err := b.fetchDecodedSource(ctx, sourceRequest{
+		name:           "hourly",
+		endpoint:       "/forecast/hourly",
+		query:          queryOptions{precision: true, timezone: true},
+		missingMessage: "hourly forecast data is missing",
+		required:       true,
+		decodeLabel:    "hourly forecast",
+	}, &hourly)
+	if err != nil || !ok {
 		return err
 	}
-	if raw == nil {
+	source := fetched.source
-		return b.handleMissing(&source, "hourly forecast data is missing", true)
-	}
-	var hourly forecast.ForecastRun
-	if err := decodeSource(raw, &hourly); err != nil {
-		return fmt.Errorf("decode hourly forecast from %s: %w", source.Endpoint, err)
-	}
 	if len(hourly.Periods) == 0 {
 		return fmt.Errorf("hourly forecast from %s contains no periods", source.Endpoint)
 	}
@@ -183,17 +204,17 @@ func (b *bundleBuilder) fetchHourly(ctx context.Context) error {
 }
 
 func (b *bundleBuilder) fetchNarrative(ctx context.Context) error {
-	raw, source, err := b.client.fetch(ctx, "narrative", "/forecast/narrative", queryOptions{precision: true, timezone: true})
+	var narrative weatherdata.ForecastRun
-	if err != nil {
+	fetched, ok, err := b.fetchDecodedSource(ctx, sourceRequest{
+		name:           "narrative",
+		endpoint:       "/forecast/narrative",
+		query:          queryOptions{precision: true, timezone: true},
+		missingMessage: "narrative forecast data is missing",
+	}, &narrative)
+	if err != nil || !ok {
 		return err
 	}
-	if raw == nil {
+	source := fetched.source
-		return b.handleMissing(&source, "narrative forecast data is missing", false)
-	}
-	var narrative forecast.ForecastRun
-	if err := decodeSource(raw, &narrative); err != nil {
-		return b.handleMalformed(&source, err, false)
-	}
 	source.IssuedAt = &narrative.IssuedAt
 	source.UpdatedAt = narrative.UpdatedAt
 	b.bundle.Narrative = &narrative
@@ -210,13 +231,13 @@ func (b *bundleBuilder) fetchAlerts(ctx context.Context) error {
 		return b.handleMissing(&source, "active alerts data is missing", false)
 	}
 	if isJSONNull(raw) {
-		b.bundle.Alerts = &forecast.AlertRun{Raw: append(json.RawMessage(nil), raw...)}
+		b.bundle.Alerts = &weatherdata.AlertRun{Raw: append(json.RawMessage(nil), raw...)}
 		b.addSource(source)
 		return nil
 	}
-	var alerts forecast.AlertRun
+	var alerts weatherdata.AlertRun
 	if err := decodeSource(raw, &alerts); err != nil {
-		return b.handleMalformed(&source, err, false)
+		return b.handleMalformed(&source, err, sourceRequest{name: "alerts"})
 	}
 	alerts.Raw = append(json.RawMessage(nil), raw...)
 	if alerts.AsOf != nil {
@@ -228,17 +249,17 @@ func (b *bundleBuilder) fetchAlerts(ctx context.Context) error {
 }
 
 func (b *bundleBuilder) fetchDiscussion(ctx context.Context) error {
-	raw, source, err := b.client.fetch(ctx, "discussion", "/discussion", queryOptions{timezone: true})
+	var discussion weatherdata.Discussion
-	if err != nil {
+	fetched, ok, err := b.fetchDecodedSource(ctx, sourceRequest{
+		name:           "discussion",
+		endpoint:       "/discussion",
+		query:          queryOptions{timezone: true},
+		missingMessage: "forecast discussion data is missing",
+	}, &discussion)
+	if err != nil || !ok {
 		return err
 	}
-	if raw == nil {
+	source := fetched.source
-		return b.handleMissing(&source, "forecast discussion data is missing", false)
-	}
-	var discussion forecast.Discussion
-	if err := decodeSource(raw, &discussion); err != nil {
-		return b.handleMalformed(&source, err, false)
-	}
 	source.IssuedAt = &discussion.IssuedAt
 	source.UpdatedAt = discussion.UpdatedAt
 	b.bundle.Discussion = &discussion
@@ -246,16 +267,73 @@ func (b *bundleBuilder) fetchDiscussion(ctx context.Context) error {
 	return nil
 }
 
-func (b *bundleBuilder) addStub(sourceName string, message string) error {
+func (b *bundleBuilder) fetchWeatherStory(ctx context.Context) error {
-	source := forecast.Source{
+	var story weatherdata.WeatherStory
-		Name:      sourceName,
+	fetched, ok, err := b.fetchDecodedSource(ctx, sourceRequest{
-		FetchedAt: b.fetchedAt,
+		name:           "weather_story",
-		Missing:   true,
+		endpoint:       "/weatherstories/latest",
+		query:          queryOptions{omitUnits: true},
+		missingMessage: "NWS weather story data is missing",
+	}, &story)
+	if err != nil || !ok {
+		return err
 	}
-	return b.applyMissingPolicy(&source, "missing_source", message)
+	source := fetched.source
+	if !story.StartTime.IsZero() {
+		source.IssuedAt = &story.StartTime
+	}
+	source.UpdatedAt = story.UpdatedAt
+	b.bundle.WeatherStory = &story
+	b.addSource(source)
+	return nil
 }
 
-func (b *bundleBuilder) handleMissing(source *forecast.Source, message string, required bool) error {
+func (b *bundleBuilder) fetchSPCConvectiveOutlooks(ctx context.Context) error {
+	var run weatherdata.ConvectiveOutlookRun
+	fetched, ok, err := b.fetchDecodedSource(ctx, sourceRequest{
+		name:           sourceSPCConvectiveOutlooks,
+		endpoint:       convectiveOutlooksEndpoint,
+		query:          queryOptions{timezone: true, omitUnits: true},
+		missingMessage: "SPC convective outlook data is missing",
+	}, &run)
+	if err != nil || !ok {
+		return err
+	}
+	source := fetched.source
+	if run.IssuedAt != nil {
+		source.IssuedAt = run.IssuedAt
+	} else {
+		source.IssuedAt = run.AsOf
+	}
+	source.UpdatedAt = run.UpdatedAt
+	b.bundle.SPCConvectiveOutlooks = &run
+	b.addSource(source)
+	return nil
+}
+
+func (b *bundleBuilder) fetchDecodedSource(ctx context.Context, request sourceRequest, target any) (fetchedSource, bool, error) {
+	fetched, ok, err := b.fetchSource(ctx, request)
+	if err != nil || !ok {
+		return fetchedSource{}, false, err
+	}
+	if err := decodeSource(fetched.raw, target); err != nil {
+		return fetchedSource{}, false, b.handleMalformed(&fetched.source, err, request)
+	}
+	return fetched, true, nil
+}
+
+func (b *bundleBuilder) fetchSource(ctx context.Context, request sourceRequest) (fetchedSource, bool, error) {
+	raw, source, err := b.client.fetch(ctx, request.name, request.endpoint, request.query)
+	if err != nil {
+		return fetchedSource{}, false, err
+	}
+	if raw == nil {
+		return fetchedSource{}, false, b.handleMissing(&source, request.missingMessage, request.required)
+	}
+	return fetchedSource{raw: raw, source: source}, true, nil
+}
+
+func (b *bundleBuilder) handleMissing(source *weatherdata.Source, message string, required bool) error {
 	source.Missing = true
 	if required {
 		return fmt.Errorf("%s from %s is required", message, source.Endpoint)
@@ -263,21 +341,25 @@ func (b *bundleBuilder) handleMissing(source *forecast.Source, message string, r
 	return b.applyMissingPolicy(source, "missing_source", message)
 }
 
-func (b *bundleBuilder) handleMalformed(source *forecast.Source, err error, required bool) error {
+func (b *bundleBuilder) handleMalformed(source *weatherdata.Source, err error, request sourceRequest) error {
-	if required {
+	if request.required {
-		return fmt.Errorf("decode %s from %s: %w", source.Name, source.Endpoint, err)
+		label := request.name
+		if request.decodeLabel != "" {
+			label = request.decodeLabel
+		}
+		return fmt.Errorf("decode %s from %s: %w", label, source.Endpoint, err)
 	}
 	source.Missing = true
 	return b.applyMissingPolicy(source, "malformed_source", fmt.Sprintf("malformed %s data: %v", source.Name, err))
 }
 
-func (b *bundleBuilder) applyMissingPolicy(source *forecast.Source, code string, message string) error {
+func (b *bundleBuilder) applyMissingPolicy(source *weatherdata.Source, code string, message string) error {
 	policy := b.client.policyFor(source.Name)
 	if policy == config.MissingSourceError {
 		return fmt.Errorf("%s: %s", source.Name, message)
 	}
 	if policy == config.MissingSourceWarn {
-		warning := forecast.SourceWarning{
+		warning := weatherdata.SourceWarning{
 			Source:             source.Name,
 			Code:               code,
 			Severity:           "warning",
@@ -292,7 +374,7 @@ func (b *bundleBuilder) applyMissingPolicy(source *forecast.Source, code string,
 	return nil
 }
 
-func (b *bundleBuilder) addSource(source forecast.Source) {
+func (b *bundleBuilder) addSource(source weatherdata.Source) {
 	b.bundle.Sources = append(b.bundle.Sources, source)
 }
 
@@ -307,39 +389,40 @@ type queryOptions struct {
 	precision bool
 	timezone  bool
 	allowNull bool
+	omitUnits bool
 }
 
 type envelope struct {
 	Data json.RawMessage `json:"data"`
 }
 
-func (c *Client) fetch(ctx context.Context, sourceName string, endpoint string, opts queryOptions) (json.RawMessage, forecast.Source, error) {
+func (c *Client) fetch(ctx context.Context, sourceName string, endpoint string, opts queryOptions) (json.RawMessage, weatherdata.Source, error) {
 	reqURL := c.endpointURL(endpoint, opts)
 	req, err := http.NewRequestWithContext(ctx, http.MethodGet, reqURL.String(), nil)
 	if err != nil {
-		return nil, forecast.Source{}, fmt.Errorf("create request for %s: %w", endpoint, err)
+		return nil, weatherdata.Source{}, fmt.Errorf("create request for %s: %w", endpoint, err)
 	}
 
 	resp, err := c.httpClient.Do(req)
 	if err != nil {
-		return nil, forecast.Source{}, fmt.Errorf("fetch %s: %w", endpoint, err)
+		return nil, weatherdata.Source{}, fmt.Errorf("fetch %s: %w", endpoint, err)
 	}
 	defer resp.Body.Close()
 
 	body, err := io.ReadAll(io.LimitReader(resp.Body, 10<<20))
 	if err != nil {
-		return nil, forecast.Source{}, fmt.Errorf("read %s response: %w", endpoint, err)
+		return nil, weatherdata.Source{}, fmt.Errorf("read %s response: %w", endpoint, err)
 	}
 	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
-		return nil, forecast.Source{}, fmt.Errorf("fetch %s: unexpected HTTP status %d: %s", endpoint, resp.StatusCode, strings.TrimSpace(string(body)))
+		return nil, weatherdata.Source{}, fmt.Errorf("fetch %s: unexpected HTTP status %d: %s", endpoint, resp.StatusCode, strings.TrimSpace(string(body)))
 	}
 
 	var env envelope
 	if err := json.Unmarshal(body, &env); err != nil {
-		return nil, forecast.Source{}, fmt.Errorf("decode %s envelope: %w", endpoint, err)
+		return nil, weatherdata.Source{}, fmt.Errorf("decode %s envelope: %w", endpoint, err)
 	}
 
-	source := forecast.Source{
+	source := weatherdata.Source{
 		Name:      sourceName,
 		Endpoint:  endpoint,
 		Query:     queryMap(reqURL.Query()),
@@ -366,7 +449,9 @@ func (c *Client) endpointURL(endpoint string, opts queryOptions) *url.URL {
 	reqURL.Path = path.Join(c.baseURL.Path, endpoint)
 	query := reqURL.Query()
 	query.Set("format", c.format)
+	if !opts.omitUnits {
 		query.Set("units", c.units)
+	}
 	if opts.precision {
 		query.Set("precision", strconv.Itoa(c.precision))
 	}
@@ -406,7 +491,7 @@ func sourceHash(raw json.RawMessage) (string, error) {
 	return hex.EncodeToString(sum[:]), nil
 }
 
-func SaveBundle(path string, bundle *forecast.Bundle) error {
+func SaveBundle(path string, bundle *weatherdata.Bundle) error {
 	if err := fileutil.WriteJSONAtomic(path, bundle); err != nil {
 		return fmt.Errorf("save bundle: %w", err)
 	}

internal/adapters/weatherapi/client_test.go

@@ -12,7 +12,7 @@ import (
 	"time"
 
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/config"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
 )
 
 func TestFetchBundleFromFixtures(t *testing.T) {
@@ -49,11 +49,44 @@ func TestFetchBundleFromFixtures(t *testing.T) {
 	if bundle.Discussion.LongTerm == nil || bundle.Discussion.LongTerm.Text != "Warmer temperatures and periodic rain chances continue into the weekend." {
 		t.Fatalf("Discussion.LongTerm = %#v, want long-term AFD text", bundle.Discussion.LongTerm)
 	}
+	if bundle.WeatherStory == nil || bundle.WeatherStory.Title != "Several Chances for Rain Through Monday" {
+		t.Fatalf("WeatherStory = %#v, want latest weather story", bundle.WeatherStory)
+	}
+	if bundle.WeatherStory.UpdatedAt == nil {
+		t.Fatalf("WeatherStory.UpdatedAt = nil, want update timestamp")
+	}
+	if bundle.SPCConvectiveOutlooks == nil || len(bundle.SPCConvectiveOutlooks.Outlooks) != 1 {
+		t.Fatalf("SPCConvectiveOutlooks = %#v, want one outlook", bundle.SPCConvectiveOutlooks)
+	}
+	if len(bundle.SPCConvectiveOutlooks.Outlooks[0].Geometry) == 0 {
+		t.Fatalf("SPCConvectiveOutlooks.Outlooks[0].Geometry is empty, want GeoJSON")
+	}
+	if len(bundle.SPCConvectiveOutlooks.Discussions) != 1 || bundle.SPCConvectiveOutlooks.Discussions[0].Headline != "Severe storms possible" {
+		t.Fatalf("SPCConvectiveOutlooks.Discussions = %#v, want one discussion", bundle.SPCConvectiveOutlooks.Discussions)
+	}
 	if len(bundle.Sources) != 8 {
 		t.Fatalf("Sources length = %d, want 8", len(bundle.Sources))
 	}
-	if len(bundle.Warnings) != 2 {
+	if len(bundle.Warnings) != 0 {
-		t.Fatalf("Warnings length = %d, want daily and weather story warnings", len(bundle.Warnings))
+		t.Fatalf("Warnings length = %d, want no warnings", len(bundle.Warnings))
+	}
+	wantPaths := []string{
+		"/observations",
+		"/conditions/current",
+		"/forecast/hourly",
+		"/forecast/narrative",
+		"/alerts/active",
+		"/discussion",
+		"/weatherstories/latest",
+		convectiveOutlooksEndpoint,
+	}
+	if len(requested) != len(wantPaths) {
+		t.Fatalf("requested paths = %v, want %d source endpoints", requested, len(wantPaths))
+	}
+	for _, want := range wantPaths {
+		if !containsPath(requested, want) {
+			t.Fatalf("requested paths = %v, want %s", requested, want)
+		}
 	}
 	if !containsPath(requested, "/forecast/hourly") || containsPath(requested, "/forecast/hourly/today") {
 		t.Fatalf("requested paths = %v, want full hourly endpoint only", requested)
@@ -61,6 +94,12 @@ func TestFetchBundleFromFixtures(t *testing.T) {
 	if !containsPath(requested, "/forecast/narrative") || containsPath(requested, "/forecast/narrative/today") {
 		t.Fatalf("requested paths = %v, want full narrative endpoint only", requested)
 	}
+	if !containsPath(requested, "/weatherstories/latest") {
+		t.Fatalf("requested paths = %v, want weather story endpoint", requested)
+	}
+	if !containsPath(requested, convectiveOutlooksEndpoint) {
+		t.Fatalf("requested paths = %v, want convective outlook endpoint", requested)
+	}
 }
 
 func TestFetchBundleBuildsExpectedQueries(t *testing.T) {
@@ -74,8 +113,23 @@ func TestFetchBundleBuildsExpectedQueries(t *testing.T) {
 	}
 
 	for _, rawURL := range requested {
-		if !strings.Contains(rawURL, "format=json") || !strings.Contains(rawURL, "units=us") {
+		if !strings.Contains(rawURL, "format=json") {
-			t.Fatalf("request %q missing format=json or units=us", rawURL)
+			t.Fatalf("request %q missing format=json", rawURL)
+		}
+		if strings.HasPrefix(rawURL, "/weatherstories/") {
+			if strings.Contains(rawURL, "units=") || strings.Contains(rawURL, "precision=") || strings.Contains(rawURL, "tz=") {
+				t.Fatalf("weather story request %q should use format only", rawURL)
+			}
+			continue
+		}
+		if strings.HasPrefix(rawURL, convectiveOutlooksEndpoint) {
+			if strings.Contains(rawURL, "units=") || strings.Contains(rawURL, "precision=") || !strings.Contains(rawURL, "tz=America%2FChicago") {
+				t.Fatalf("convective outlook request %q should use format and tz only", rawURL)
+			}
+			continue
+		}
+		if !strings.Contains(rawURL, "units=us") {
+			t.Fatalf("request %q missing units=us", rawURL)
 		}
 		if strings.HasPrefix(rawURL, "/forecast/") {
 			if !strings.Contains(rawURL, "precision=1") || !strings.Contains(rawURL, "tz=America%2FChicago") {
@@ -99,6 +153,35 @@ func TestFetchBundleRecordsSourceHash(t *testing.T) {
 	if observation.DataSHA256 != want {
 		t.Fatalf("DataSHA256 = %q, want %q", observation.DataSHA256, want)
 	}
+	story := sourceByName(t, bundle.Sources, "weather_story")
+	if story.Endpoint != "/weatherstories/latest" {
+		t.Fatalf("weather story endpoint = %q, want /weatherstories/latest", story.Endpoint)
+	}
+	if story.DataSHA256 != hashFixtureData(t, "weather_story.json") {
+		t.Fatalf("weather story DataSHA256 = %q, want fixture hash", story.DataSHA256)
+	}
+	if story.IssuedAt == nil || story.UpdatedAt == nil {
+		t.Fatalf("weather story source timestamps = issued %#v updated %#v, want both", story.IssuedAt, story.UpdatedAt)
+	}
+	outlooks := sourceByName(t, bundle.Sources, sourceSPCConvectiveOutlooks)
+	if outlooks.Endpoint != convectiveOutlooksEndpoint {
+		t.Fatalf("convective outlook endpoint = %q, want %s", outlooks.Endpoint, convectiveOutlooksEndpoint)
+	}
+	if outlooks.Query["format"] != "json" || outlooks.Query["tz"] != "America/Chicago" || outlooks.Query["units"] != "" || outlooks.Query["precision"] != "" {
+		t.Fatalf("convective outlook query = %#v, want format and tz only", outlooks.Query)
+	}
+	if outlooks.DataSHA256 != hashFixtureData(t, "convective_outlooks.json") {
+		t.Fatalf("convective outlook DataSHA256 = %q, want fixture hash", outlooks.DataSHA256)
+	}
+	if outlooks.Missing {
+		t.Fatal("convective outlook source Missing = true, want false")
+	}
+	if outlooks.IssuedAt == nil || outlooks.IssuedAt.Format(time.RFC3339) != "2026-05-29T15:45:00Z" {
+		t.Fatalf("convective outlook IssuedAt = %#v, want run issuedAt", outlooks.IssuedAt)
+	}
+	if outlooks.UpdatedAt == nil || outlooks.UpdatedAt.Format(time.RFC3339) != "2026-05-29T16:05:00Z" {
+		t.Fatalf("convective outlook UpdatedAt = %#v, want run updatedAt", outlooks.UpdatedAt)
+	}
 }
 
 func TestHTTPErrorIsActionable(t *testing.T) {
@@ -161,6 +244,59 @@ func TestNullAlertsMeansNoActiveAlerts(t *testing.T) {
 	}
 }
 
+func TestMissingSPCConvectiveOutlooksUsesPolicy(t *testing.T) {
+	server := fixtureServer(t, map[string]handlerOverride{
+		convectiveOutlooksEndpoint: {status: http.StatusOK, body: `{"data": null}`},
+	}, nil)
+	client := newTestClient(t, server.URL+"/", map[string]config.MissingSourcePolicy{
+		sourceSPCConvectiveOutlooks: config.MissingSourceWarn,
+	})
+
+	bundle, err := client.FetchBundle(context.Background())
+	if err != nil {
+		t.Fatalf("FetchBundle() error = %v", err)
+	}
+	if bundle.SPCConvectiveOutlooks != nil {
+		t.Fatalf("SPCConvectiveOutlooks = %#v, want nil for missing source", bundle.SPCConvectiveOutlooks)
+	}
+	source := sourceByName(t, bundle.Sources, sourceSPCConvectiveOutlooks)
+	if !source.Missing || len(source.Warnings) != 1 {
+		t.Fatalf("convective outlook source = %#v, want missing source warning", source)
+	}
+}
+
+func TestEmptySPCConvectiveOutlooksAreCheckedData(t *testing.T) {
+	server := fixtureServer(t, map[string]handlerOverride{
+		convectiveOutlooksEndpoint: {status: http.StatusOK, body: `{"data":{"asOf":"2026-05-29T16:00:00Z","outlooks":[],"discussions":[]}}`},
+	}, nil)
+	client := newTestClient(t, server.URL+"/", map[string]config.MissingSourcePolicy{
+		sourceSPCConvectiveOutlooks: config.MissingSourceWarn,
+	})
+
+	bundle, err := client.FetchBundle(context.Background())
+	if err != nil {
+		t.Fatalf("FetchBundle() error = %v", err)
+	}
+	if bundle.SPCConvectiveOutlooks == nil {
+		t.Fatal("SPCConvectiveOutlooks = nil, want checked empty run")
+	}
+	if len(bundle.SPCConvectiveOutlooks.Outlooks) != 0 || len(bundle.SPCConvectiveOutlooks.Discussions) != 0 {
+		t.Fatalf("SPCConvectiveOutlooks = %#v, want empty arrays", bundle.SPCConvectiveOutlooks)
+	}
+	source := sourceByName(t, bundle.Sources, sourceSPCConvectiveOutlooks)
+	if source.Missing || len(source.Warnings) != 0 {
+		t.Fatalf("convective outlook source = %#v, want non-missing source without warnings", source)
+	}
+	if source.IssuedAt == nil || source.IssuedAt.Format(time.RFC3339) != "2026-05-29T16:00:00Z" {
+		t.Fatalf("convective outlook IssuedAt = %#v, want fallback to asOf", source.IssuedAt)
+	}
+	for _, warning := range bundle.Warnings {
+		if warning.Source == sourceSPCConvectiveOutlooks {
+			t.Fatalf("warnings = %#v, want no convective outlook warning", bundle.Warnings)
+		}
+	}
+}
+
 func TestMissingSourcePolicyWarnNoneError(t *testing.T) {
 	tests := []struct {
 		name       string
@@ -169,7 +305,7 @@ func TestMissingSourcePolicyWarnNoneError(t *testing.T) {
 		wantWarns  int
 		wantSource bool
 	}{
-		{name: "warn", policy: config.MissingSourceWarn, wantWarns: 3, wantSource: true},
+		{name: "warn", policy: config.MissingSourceWarn, wantWarns: 1, wantSource: true},
 		{name: "none", policy: config.MissingSourceNone, wantWarns: 0, wantSource: true},
 		{name: "error", policy: config.MissingSourceError, wantErr: true},
 	}
@@ -230,6 +366,45 @@ func TestMalformedNonRequiredSourceUsesPolicy(t *testing.T) {
 	}
 }
 
+func TestMissingWeatherStoryUsesPolicy(t *testing.T) {
+	server := fixtureServer(t, map[string]handlerOverride{
+		"/weatherstories/latest": {status: http.StatusOK, body: `{"data": null}`},
+	}, nil)
+	client := newTestClient(t, server.URL+"/", map[string]config.MissingSourcePolicy{
+		"weather_story": config.MissingSourceWarn,
+	})
+
+	bundle, err := client.FetchBundle(context.Background())
+	if err != nil {
+		t.Fatalf("FetchBundle() error = %v", err)
+	}
+	if bundle.WeatherStory != nil {
+		t.Fatalf("WeatherStory = %#v, want nil for missing source", bundle.WeatherStory)
+	}
+	source := sourceByName(t, bundle.Sources, "weather_story")
+	if !source.Missing || len(source.Warnings) != 1 {
+		t.Fatalf("weather_story source = %#v, want missing source warning", source)
+	}
+}
+
+func TestMalformedWeatherStoryUsesPolicy(t *testing.T) {
+	server := fixtureServer(t, map[string]handlerOverride{
+		"/weatherstories/latest": {status: http.StatusOK, body: `{"data": {"startTime": 123}}`},
+	}, nil)
+	client := newTestClient(t, server.URL+"/", map[string]config.MissingSourcePolicy{
+		"weather_story": config.MissingSourceWarn,
+	})
+
+	bundle, err := client.FetchBundle(context.Background())
+	if err != nil {
+		t.Fatalf("FetchBundle() error = %v", err)
+	}
+	source := sourceByName(t, bundle.Sources, "weather_story")
+	if !source.Missing || len(source.Warnings) != 1 || source.Warnings[0].Code != "malformed_source" {
+		t.Fatalf("weather_story source = %#v, want malformed source warning", source)
+	}
+}
+
 func TestContextCancellation(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		<-r.Context().Done()
@@ -302,6 +477,8 @@ func fixtureServer(t *testing.T, overrides map[string]handlerOverride, requested
 		"/forecast/narrative":      "narrative.json",
 		"/alerts/active":           "alerts.json",
 		"/discussion":              "discussion.json",
+		"/weatherstories/latest":   "weather_story.json",
+		convectiveOutlooksEndpoint: "convective_outlooks.json",
 	}
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if requested != nil {
@@ -355,7 +532,7 @@ func containsPath(requested []string, path string) bool {
 	return false
 }
 
-func sourceByName(t *testing.T, sources []forecast.Source, name string) forecast.Source {
+func sourceByName(t *testing.T, sources []weatherdata.Source, name string) weatherdata.Source {
 	t.Helper()
 	for _, source := range sources {
 		if source.Name == name {
@@ -363,7 +540,7 @@ func sourceByName(t *testing.T, sources []forecast.Source, name string) forecast
 		}
 	}
 	t.Fatalf("source %q not found in %#v", name, sources)
-	return forecast.Source{}
+	return weatherdata.Source{}
 }
 
 func hashFixtureData(t *testing.T, fixture string) string {

internal/adapters/weatherapi/testdata/convective_outlooks.json

@@ -0,0 +1,50 @@
+{
+  "data": {
+    "locationId": "nws-lsx-grid-90-74",
+    "locationName": "St. Louis, MO",
+    "asOf": "2026-05-29T16:00:00Z",
+    "issuedAt": "2026-05-29T15:45:00Z",
+    "updatedAt": "2026-05-29T16:05:00Z",
+    "product": "convective_outlook",
+    "outlooks": [
+      {
+        "id": "day1-categorical-slight",
+        "provider": "spc",
+        "product": "convective_outlook",
+        "day": 1,
+        "outlookType": "categorical",
+        "label": "SLGT",
+        "labelText": "Slight Risk",
+        "forecaster": "Smith",
+        "severityRank": 3,
+        "validFrom": "2026-05-29T13:00:00-05:00",
+        "validTo": "2026-05-30T07:00:00-05:00",
+        "issuedAt": "2026-05-29T15:45:00Z",
+        "expiresAt": "2026-05-30T07:00:00-05:00",
+        "sourceUrl": "https://www.spc.noaa.gov/products/outlook/day1otlk.html",
+        "imageUrl": "https://www.spc.noaa.gov/products/outlook/day1probotlk_2000_torn.gif",
+        "containsLocation": true,
+        "geometry": {
+          "type": "Polygon",
+          "coordinates": [
+            [
+              [-91.0, 38.0],
+              [-90.0, 38.5],
+              [-89.5, 37.8],
+              [-91.0, 38.0]
+            ]
+          ]
+        }
+      }
+    ],
+    "discussions": [
+      {
+        "day": 1,
+        "headline": "Severe storms possible",
+        "summary": "Scattered severe storms are possible.",
+        "discussion": "A few storms may become severe during the afternoon.",
+        "updatedAt": "2026-05-29T16:05:00Z"
+      }
+    ]
+  }
+}

internal/adapters/weatherapi/testdata/weather_story.json

@@ -0,0 +1,14 @@
+{
+  "data": {
+    "officeId": "LSX",
+    "startTime": "2026-05-30T08:46:00Z",
+    "endTime": "2026-05-31T11:00:00Z",
+    "updatedAt": "2026-05-30T09:00:34Z",
+    "title": "Several Chances for Rain Through Monday",
+    "description": "A stagnant weather pattern with low pressure over the Great Plains and high pressure over the Great Lakes will continue to produce scattered showers and thunderstorms, for areas mainly along and west of the Mississippi River today and Sunday.",
+    "altText": "This slide shows the forecast for today through Tuesday with icons for showers and thunderstorms and a picture of a cumulonimbus cloud on the right side.",
+    "priority": false,
+    "order": 1,
+    "downloadUrl": "https://api.weather.gov/offices/LSX/weatherstories/download/3228e499-2aae-45a8-9ff9-1c060311026f"
+  }
+}

internal/app/inspect.go

@@ -6,11 +6,12 @@ import (
 
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/config"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/promptinput"
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/state"
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
 )
 
 type InspectReportsRequest struct {
@@ -28,7 +29,7 @@ type SourceInspection struct {
 	ReportID       report.ID                   `json:"reportId"`
 	SourceLocation string                      `json:"sourceLocation,omitempty"`
 	Sources        []briefing.SourceMetadata   `json:"sources,omitempty"`
-	Warnings       []forecast.SourceWarning  `json:"warnings,omitempty"`
+	Warnings       []weatherdata.SourceWarning `json:"warnings,omitempty"`
 }
 
 func InspectReports(ctx context.Context, req InspectReportsRequest) ([]state.ReportRecord, error) {
@@ -44,12 +45,12 @@ func InspectMetadata(ctx context.Context, req InspectRunRequest) (state.Metadata
 	return inspection.metadata, err
 }
 
-func InspectBriefing(ctx context.Context, req InspectRunRequest) (briefing.Package, error) {
+func InspectModules(ctx context.Context, req InspectRunRequest) (module.Snapshot, error) {
 	inspection, err := inspectRun(ctx, req)
 	if err != nil {
-		return briefing.Package{}, err
+		return module.Snapshot{}, err
 	}
-	return inspection.store.LoadBriefing(ctx, inspection.metadata.BriefingPath)
+	return inspection.store.LoadModuleSnapshot(ctx, inspection.metadata.ModuleSnapshotPath)
 }
 
 func InspectDataPackage(ctx context.Context, req InspectRunRequest) (promptinput.Package, error) {

internal/briefing/alert_digest_module.go

@@ -0,0 +1,60 @@
+package briefing
+
+import (
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/facts"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+type AlertDigestModule struct {
+	Checked       bool           `json:"checked"`
+	ActiveCount   int            `json:"active_count"`
+	RelevantCount int            `json:"relevant_count"`
+	Missing       bool           `json:"missing,omitempty"`
+	Relevant      []AlertSummary `json:"relevant,omitempty"`
+}
+
+type AlertSummary struct {
+	Event    string `json:"event,omitempty"`
+	Headline string `json:"headline,omitempty"`
+	Severity string `json:"severity,omitempty"`
+}
+
+func buildAlertDigestModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	value := alertDigest(ctx.Collected, ctx.Derived.AlertOverlaps)
+	if value == nil {
+		value = &AlertDigestModule{}
+	}
+	return &module.Output{ID: module.AlertDigest, StanzaName: "alert_digest", Value: *value}, nil
+}
+
+func alertDigest(collected facts.CollectedFacts, overlaps []forecast.AlertOverlap) *AlertDigestModule {
+	missing := sourceMissing(collected.SourceProvenance, "alerts")
+	if collected.Alerts == nil && !missing {
+		return nil
+	}
+	value := &AlertDigestModule{Missing: missing}
+	if collected.Alerts != nil {
+		value.Checked = true
+		value.ActiveCount = len(collected.Alerts.Alerts)
+	}
+	value.RelevantCount = len(overlaps)
+	for _, overlap := range overlaps {
+		value.Relevant = append(value.Relevant, AlertSummary{
+			Event:    overlap.Event,
+			Headline: overlap.Headline,
+			Severity: overlap.Severity,
+		})
+	}
+	return value
+}
+
+func sourceMissing(sources []weatherdata.Source, name string) bool {
+	for _, source := range sources {
+		if source.Name == name && source.Missing {
+			return true
+		}
+	}
+	return false
+}

internal/briefing/area_forecast_discussion_module.go

@@ -0,0 +1,67 @@
+package briefing
+
+import (
+	"fmt"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+)
+
+type AreaForecastDiscussionModule struct {
+	Product     string   `json:"product,omitempty"`
+	KeyMessages []string `json:"key_messages,omitempty"`
+	ShortTerm   string   `json:"short_term,omitempty"`
+	LongTerm    string   `json:"long_term,omitempty"`
+}
+
+func buildAreaForecastDiscussionModule(ctx ModuleContext, options any) (*module.Output, error) {
+	discussion := ctx.Collected.Discussion
+	if discussion == nil {
+		return nil, nil
+	}
+	opts, ok := options.(module.AreaForecastDiscussionOptions)
+	if !ok {
+		return nil, fmt.Errorf("area forecast discussion options have type %T", options)
+	}
+	sections, err := areaForecastDiscussionSections(opts)
+	if err != nil {
+		return nil, err
+	}
+	value := AreaForecastDiscussionModule{}
+	if sections["product"] {
+		value.Product = discussion.Product
+	}
+	if sections["key_messages"] {
+		value.KeyMessages = append([]string(nil), discussion.KeyMessages...)
+	}
+	if sections["short_term"] && discussion.ShortTerm != nil {
+		value.ShortTerm = discussion.ShortTerm.Text
+	}
+	if sections["long_term"] && discussion.LongTerm != nil {
+		value.LongTerm = discussion.LongTerm.Text
+	}
+	if value.Product == "" && len(value.KeyMessages) == 0 && value.ShortTerm == "" && value.LongTerm == "" {
+		return nil, nil
+	}
+	return &module.Output{ID: module.AreaForecastDiscussion, StanzaName: "area_forecast_discussion", Value: value}, nil
+}
+
+func areaForecastDiscussionSections(options module.AreaForecastDiscussionOptions) (map[string]bool, error) {
+	if len(options.Sections) == 0 {
+		return map[string]bool{
+			"product":      true,
+			"key_messages": true,
+			"short_term":   true,
+			"long_term":    true,
+		}, nil
+	}
+	sections := map[string]bool{}
+	for _, section := range options.Sections {
+		switch section {
+		case "product", "key_messages", "short_term", "long_term":
+			sections[section] = true
+		default:
+			return nil, fmt.Errorf("area forecast discussion section %q is not supported", section)
+		}
+	}
+	return sections, nil
+}

internal/briefing/base_modules_test.go

@@ -0,0 +1,674 @@
+package briefing
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/facts"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+func TestBaseModulesBuildAvailableSourceOutputs(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	tests := []struct {
+		id     module.ID
+		stanza string
+	}{
+		{id: module.Metadata, stanza: "metadata"},
+		{id: module.CurrentConditions, stanza: "current_conditions"},
+		{id: module.NarrativeForecast, stanza: "narrative_forecast"},
+		{id: module.HourlyForecast, stanza: "hourly_forecast"},
+		{id: module.AlertDigest, stanza: "alert_digest"},
+		{id: module.AreaForecastDiscussion, stanza: "area_forecast_discussion"},
+		{id: module.WeatherStory, stanza: "weather_story"},
+	}
+	for _, tt := range tests {
+		t.Run(string(tt.id), func(t *testing.T) {
+			output, err := registry.BuildModule(ctx, module.ConfigItem{ID: tt.id})
+			if err != nil {
+				t.Fatalf("BuildModule() error = %v", err)
+			}
+			if output == nil {
+				t.Fatal("BuildModule() output = nil, want stanza")
+			}
+			if output.ID != tt.id || output.StanzaName != tt.stanza {
+				t.Fatalf("output = %#v, want id %q stanza %q", output, tt.id, tt.stanza)
+			}
+		})
+	}
+}
+
+func TestHourlyForecastModuleUsesValidPeriodHourlyPeriods(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.HourlyForecast})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[HourlyForecastModule](t, output)
+	if value.Product != "hourly" || value.SourceLocationID != "test-grid" || len(value.Periods) != 1 {
+		t.Fatalf("HourlyForecast = %#v, want hourly metadata and one valid-period period", value)
+	}
+	period := value.Periods[0]
+	if period.HourLabel != "8:00 AM" || period.TextDescription != "Showers likely." || period.TextDescriptionLower != "showers likely." || period.TemperatureF == nil || *period.TemperatureF != 76 {
+		t.Fatalf("HourlyForecast period = %#v, want hourly period facts", period)
+	}
+	if period.PeriodBegins != "2026-05-29 at 8:00 AM" || period.PeriodEnds != "2026-05-29 at 9:00 AM" {
+		t.Fatalf("HourlyForecast period times = %q/%q, want friendly local time labels", period.PeriodBegins, period.PeriodEnds)
+	}
+	if period.WindDirection != "S" || period.ProbabilityOfPrecipitationPercent == nil || *period.ProbabilityOfPrecipitationPercent != 70 {
+		t.Fatalf("HourlyForecast period = %#v, want compass wind and precip chance", period)
+	}
+	if !period.MentionPrecipitation {
+		t.Fatalf("MentionPrecipitation = false, want true for default threshold")
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("Marshal hourly forecast: %v", err)
+	}
+	jsonText := string(data)
+	for _, field := range []string{"source_location_id", "hour_label", "period_begins", "period_ends", "text_description", "text_description_lower", "temperature_f", "wind_direction", "probability_of_precipitation_percent", "mention_precipitation", "relative_humidity_percent"} {
+		if !strings.Contains(jsonText, field) {
+			t.Fatalf("hourly json = %s, want field %s", jsonText, field)
+		}
+	}
+	if strings.Contains(jsonText, "wind_direction_degrees") || strings.Contains(jsonText, "Tomorrow") {
+		t.Fatalf("hourly json = %s, want valid-period prompt fields only", jsonText)
+	}
+	if strings.Contains(jsonText, `"start_time"`) || strings.Contains(jsonText, `"end_time"`) {
+		t.Fatalf("hourly json = %s, want period_begins/period_ends instead of start_time/end_time", jsonText)
+	}
+}
+
+func TestHourlyForecastPromptExportOmitsTemplateHelpers(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.HourlyForecast})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	richText := mustMarshalModuleJSON(t, output.Value)
+	for _, field := range []string{"hour_label", "text_description_lower", "mention_precipitation"} {
+		if !strings.Contains(richText, field) {
+			t.Fatalf("rich hourly json = %s, want helper field %s", richText, field)
+		}
+	}
+
+	prompt := moduleDataPackageValue[HourlyForecastPromptExport](t, output)
+	if prompt.Product != "hourly" || prompt.SourceLocationID != "test-grid" || len(prompt.Periods) != 1 {
+		t.Fatalf("hourly prompt export = %#v, want hourly metadata and one period", prompt)
+	}
+	period := prompt.Periods[0]
+	if period.PeriodBegins != "2026-05-29 at 8:00 AM" || period.PeriodEnds != "2026-05-29 at 9:00 AM" || period.TextDescription != "Showers likely." {
+		t.Fatalf("hourly prompt period = %#v, want factual period fields", period)
+	}
+	if period.TemperatureF == nil || *period.TemperatureF != 76 || period.WindSpeedMph == nil || *period.WindSpeedMph != 14 || period.ProbabilityOfPrecipitationPercent == nil || *period.ProbabilityOfPrecipitationPercent != 70 {
+		t.Fatalf("hourly prompt period = %#v, want temperature, wind, and precip fields", period)
+	}
+	if period.WindDirection != "S" || period.RelativeHumidityPercent == nil || *period.RelativeHumidityPercent != 66 {
+		t.Fatalf("hourly prompt period = %#v, want wind direction and humidity", period)
+	}
+	promptText := mustMarshalModuleJSON(t, output.DataPackageValue())
+	for _, field := range []string{"period_begins", "period_ends", "text_description", "temperature_f", "wind_direction", "probability_of_precipitation_percent", "relative_humidity_percent"} {
+		if !strings.Contains(promptText, field) {
+			t.Fatalf("hourly prompt json = %s, want field %s", promptText, field)
+		}
+	}
+	for _, field := range []string{"hour_label", "text_description_lower", "mention_precipitation"} {
+		if strings.Contains(promptText, field) {
+			t.Fatalf("hourly prompt json = %s, want omitted helper field %s", promptText, field)
+		}
+	}
+}
+
+func TestHourlyForecastPrecipMentionThreshold(t *testing.T) {
+	periods := []weatherdata.ForecastPeriod{
+		{StartTime: mustParseModuleTime("2026-05-29T08:00:00-05:00"), ProbabilityOfPrecipitationPercent: floatPtr(19)},
+		{StartTime: mustParseModuleTime("2026-05-29T09:00:00-05:00"), ProbabilityOfPrecipitationPercent: floatPtr(20)},
+		{StartTime: mustParseModuleTime("2026-05-29T10:00:00-05:00")},
+	}
+	value := hourlyForecastPeriodsWithPrecipMentionThreshold(periods, "America/Chicago", DefaultHourlyForecastPrecipMentionProbabilityThreshold)
+	if len(value) != 3 {
+		t.Fatalf("periods length = %d, want 3", len(value))
+	}
+	if value[0].MentionPrecipitation {
+		t.Fatalf("19%% MentionPrecipitation = true, want false")
+	}
+	if !value[1].MentionPrecipitation {
+		t.Fatalf("20%% MentionPrecipitation = false, want true")
+	}
+	if value[2].MentionPrecipitation {
+		t.Fatalf("nil MentionPrecipitation = true, want false")
+	}
+}
+
+func TestHourlyForecastModuleRejectsUnsupportedReports(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	ctx.Resolved.Definition = report.DefaultRegistry().MustLookup(report.Weekend)
+
+	_, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.HourlyForecast})
+	if err == nil || !strings.Contains(err.Error(), `module "hourly_forecast" is not compatible with report "weekend"`) {
+		t.Fatalf("BuildModule() error = %v, want incompatible report", err)
+	}
+}
+
+func TestHourlyForecastModuleBuildsForHourly(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	ctx.Resolved.Definition = report.DefaultRegistry().MustLookup(report.Hourly)
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.HourlyForecast})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[HourlyForecastModule](t, output)
+	if len(value.Periods) != 1 || value.Periods[0].TextDescription != "Showers likely." {
+		t.Fatalf("HourlyForecast = %#v, want hourly report period", value)
+	}
+}
+
+func TestNarrativeForecastModuleUsesValidPeriodNarrativePeriods(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.NarrativeForecast})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[NarrativeForecastModule](t, output)
+	if value.Product != "narrative" || value.SourceLocationID != "test-grid" || len(value.Periods) != 1 {
+		t.Fatalf("NarrativeForecast = %#v, want narrative metadata and one valid-period period", value)
+	}
+	period := value.Periods[0]
+	if period.Name != "Today" || period.TextDescription != "Morning storms, then partly sunny." {
+		t.Fatalf("NarrativeForecast period = %#v, want Today narrative", period)
+	}
+	if period.PeriodBegins != "2026-05-29 at 6:00 AM" || period.PeriodEnds != "2026-05-29 at 6:00 PM" {
+		t.Fatalf("NarrativeForecast period times = %q/%q, want friendly local time labels", period.PeriodBegins, period.PeriodEnds)
+	}
+	if period.IsDay == nil || !*period.IsDay || period.TemperatureF == nil || *period.TemperatureF != 81 || period.ProbabilityOfPrecipitationPercent == nil || *period.ProbabilityOfPrecipitationPercent != 60 {
+		t.Fatalf("NarrativeForecast period = %#v, want day, temperature, and precip values", period)
+	}
+	if period.WindDirection != "NE" {
+		t.Fatalf("NarrativeForecast period wind direction = %q, want NE", period.WindDirection)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("Marshal narrative forecast: %v", err)
+	}
+	jsonText := string(data)
+	for _, field := range []string{"source_location_id", "period_begins", "period_ends", "text_description", "temperature_f", "wind_speed_mph", "wind_direction", "probability_of_precipitation_percent"} {
+		if !strings.Contains(jsonText, field) {
+			t.Fatalf("narrative json = %s, want field %s", jsonText, field)
+		}
+	}
+	if strings.Contains(jsonText, "wind_direction_degrees") {
+		t.Fatalf("narrative json = %s, want compass wind_direction without degrees field", jsonText)
+	}
+	if strings.Contains(jsonText, `"start_time"`) || strings.Contains(jsonText, `"end_time"`) {
+		t.Fatalf("narrative json = %s, want period_begins/period_ends instead of start_time/end_time", jsonText)
+	}
+	if strings.Contains(jsonText, "Tomorrow night") {
+		t.Fatalf("narrative json = %s, want only valid-period narrative periods", jsonText)
+	}
+}
+
+func TestNarrativeForecastModuleRejectsUnsupportedReports(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	ctx.Resolved.Definition = report.DefaultRegistry().MustLookup(report.Weekend)
+
+	_, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.NarrativeForecast})
+	if err == nil || !strings.Contains(err.Error(), `module "narrative_forecast" is not compatible with report "weekend"`) {
+		t.Fatalf("BuildModule() error = %v, want incompatible report", err)
+	}
+}
+
+func TestMetadataModuleUsesPromptSafeSourceWarningSummary(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.Metadata})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[MetadataModule](t, output)
+	if value.RunID == "" || value.ReportID != report.Daily || value.PromptID != "weather.daily_generated_text" {
+		t.Fatalf("metadata = %#v, want report identity", value)
+	}
+	if value.Location == nil || value.Location.Name != "Brentwood" {
+		t.Fatalf("Location = %#v, want configured location", value.Location)
+	}
+	if len(value.SourceWarnings) != 1 || value.SourceWarnings[0].CompletenessImpact != "source omitted" {
+		t.Fatalf("SourceWarnings = %#v, want warning summary", value.SourceWarnings)
+	}
+	if value.Alerts == nil || !value.Alerts.Checked || value.Alerts.ActiveCount != 1 || value.Alerts.RelevantCount != 1 {
+		t.Fatalf("Alerts = %#v, want checked alert status", value.Alerts)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("Marshal metadata: %v", err)
+	}
+	jsonText := string(data)
+	if !strings.Contains(jsonText, "source_warnings") || strings.Contains(jsonText, "endpoint") || strings.Contains(jsonText, "dataSha256") {
+		t.Fatalf("metadata json = %s, want source warning summary without transport provenance", jsonText)
+	}
+}
+
+func TestCurrentConditionsModuleUsesSnakeCaseUnitFields(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.CurrentConditions})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[CurrentConditionsModule](t, output)
+	if value.ConditionText != "Partly cloudy" || value.ConditionTextLower != "partly cloudy" || value.TemperatureF == nil || *value.TemperatureF != 74 {
+		t.Fatalf("CurrentConditions = %#v, want rounded current condition facts", value)
+	}
+	if value.ApparentTemperatureF == nil || *value.ApparentTemperatureF != 76 || value.RelativeHumidityPercent == nil || *value.RelativeHumidityPercent != 71 || value.WindSpeedMph == nil || *value.WindSpeedMph != 8 {
+		t.Fatalf("CurrentConditions rounded values = %#v, want apparent 76, humidity 71, wind 8", value)
+	}
+	if value.WindDirection != "S" {
+		t.Fatalf("WindDirection = %q, want S", value.WindDirection)
+	}
+	if value.WindDirectionText != "south" {
+		t.Fatalf("WindDirectionText = %q, want south", value.WindDirectionText)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("Marshal current conditions: %v", err)
+	}
+	jsonText := string(data)
+	for _, field := range []string{"condition_text", "condition_text_lower", "temperature_f", "apparent_temperature_f", "relative_humidity_percent", "wind_speed_mph", "wind_direction", "wind_direction_text"} {
+		if !strings.Contains(jsonText, field) {
+			t.Fatalf("current json = %s, want field %s", jsonText, field)
+		}
+	}
+	if strings.Contains(jsonText, "wind_direction_degrees") {
+		t.Fatalf("current json = %s, want compass wind_direction without degrees field", jsonText)
+	}
+}
+
+func TestCurrentConditionsPromptExportOmitsTemplateHelpers(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.CurrentConditions})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	richText := mustMarshalModuleJSON(t, output.Value)
+	for _, field := range []string{"condition_text_lower", "wind_direction_text"} {
+		if !strings.Contains(richText, field) {
+			t.Fatalf("rich current conditions json = %s, want helper field %s", richText, field)
+		}
+	}
+
+	prompt := moduleDataPackageValue[CurrentConditionsPromptExport](t, output)
+	if prompt.ConditionText != "Partly cloudy" || prompt.TemperatureF == nil || *prompt.TemperatureF != 74 {
+		t.Fatalf("current prompt export = %#v, want condition text and temperature", prompt)
+	}
+	if prompt.ApparentTemperatureF == nil || *prompt.ApparentTemperatureF != 76 || prompt.RelativeHumidityPercent == nil || *prompt.RelativeHumidityPercent != 71 || prompt.WindSpeedMph == nil || *prompt.WindSpeedMph != 8 {
+		t.Fatalf("current prompt export = %#v, want apparent temperature, humidity, and wind speed", prompt)
+	}
+	if prompt.WindDirection != "S" {
+		t.Fatalf("current prompt wind direction = %q, want S", prompt.WindDirection)
+	}
+	promptText := mustMarshalModuleJSON(t, output.DataPackageValue())
+	for _, field := range []string{"condition_text", "temperature_f", "apparent_temperature_f", "relative_humidity_percent", "wind_speed_mph", "wind_direction"} {
+		if !strings.Contains(promptText, field) {
+			t.Fatalf("current prompt json = %s, want field %s", promptText, field)
+		}
+	}
+	for _, field := range []string{"condition_text_lower", "wind_direction_text"} {
+		if strings.Contains(promptText, field) {
+			t.Fatalf("current prompt json = %s, want omitted helper field %s", promptText, field)
+		}
+	}
+}
+
+func TestAlertDigestDistinguishesCheckedEmptyAndMissing(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	ctx.Collected.Alerts = &weatherdata.AlertRun{}
+	ctx.Derived.AlertOverlaps = nil
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.AlertDigest})
+	if err != nil {
+		t.Fatalf("BuildModule(checked empty) error = %v", err)
+	}
+	checked := moduleValue[AlertDigestModule](t, output)
+	if !checked.Checked || checked.ActiveCount != 0 || checked.RelevantCount != 0 || checked.Missing {
+		t.Fatalf("checked empty alert digest = %#v, want checked/no active", checked)
+	}
+
+	ctx.Collected.Alerts = nil
+	ctx.Collected.SourceProvenance = []weatherdata.Source{{Name: "alerts", Missing: true}}
+	output, err = registry.BuildModule(ctx, module.ConfigItem{ID: module.AlertDigest})
+	if err != nil {
+		t.Fatalf("BuildModule(missing) error = %v", err)
+	}
+	missing := moduleValue[AlertDigestModule](t, output)
+	if missing.Checked || !missing.Missing {
+		t.Fatalf("missing alert digest = %#v, want missing unchecked source", missing)
+	}
+}
+
+func TestBaseModulesOmitMissingOptionalOutputs(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	ctx.Collected.Current = nil
+	ctx.Collected.Narrative = nil
+	ctx.Collected.Hourly = nil
+	ctx.Derived.ValidPeriodNarrativePeriods = nil
+	ctx.Derived.ValidPeriodHourlyPeriods = nil
+	ctx.Collected.Discussion = nil
+	ctx.Collected.WeatherStory = nil
+
+	for _, id := range []module.ID{module.CurrentConditions, module.NarrativeForecast, module.HourlyForecast, module.AreaForecastDiscussion, module.WeatherStory} {
+		output, err := registry.BuildModule(ctx, module.ConfigItem{ID: id})
+		if err != nil {
+			t.Fatalf("BuildModule(%s) error = %v", id, err)
+		}
+		if output != nil {
+			t.Fatalf("BuildModule(%s) output = %#v, want omitted", id, output)
+		}
+	}
+}
+
+func TestAreaForecastDiscussionAndWeatherStoryModules(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	afdOutput, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.AreaForecastDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule(afd) error = %v", err)
+	}
+	afd := moduleValue[AreaForecastDiscussionModule](t, afdOutput)
+	if len(afd.KeyMessages) != 1 || afd.ShortTerm != "Showers increase this afternoon." || afd.LongTerm != "Periodic rain chances continue." {
+		t.Fatalf("AFD = %#v, want discussion sections", afd)
+	}
+
+	storyOutput, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.WeatherStory})
+	if err != nil {
+		t.Fatalf("BuildModule(weather story) error = %v", err)
+	}
+	story := moduleValue[WeatherStoryModule](t, storyOutput)
+	if !story.Available || story.Title != "Rain Chances" || story.Description != "Scattered showers are possible." {
+		t.Fatalf("WeatherStory = %#v, want structured story fields", story)
+	}
+	if story.PeriodBegins != "2026-05-29 at 6:00 AM" || story.PeriodEnds != "2026-05-29 at 6:00 PM" {
+		t.Fatalf("WeatherStory period = %q/%q, want friendly local period labels", story.PeriodBegins, story.PeriodEnds)
+	}
+	data, err := json.Marshal(storyOutput.Value)
+	if err != nil {
+		t.Fatalf("Marshal weather story: %v", err)
+	}
+	if !strings.Contains(string(data), "download_url") || !strings.Contains(string(data), "period_begins") || !strings.Contains(string(data), "period_ends") {
+		t.Fatalf("weather story json = %s, want snake_case download_url", string(data))
+	}
+	if strings.Contains(string(data), "start_time") || strings.Contains(string(data), "end_time") {
+		t.Fatalf("weather story json = %s, want period_begins/period_ends instead of start_time/end_time", string(data))
+	}
+}
+
+func TestAreaForecastDiscussionModuleCanSelectSections(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{
+		ID:      module.AreaForecastDiscussion,
+		Options: module.AreaForecastDiscussionOptions{Sections: []string{"short_term"}},
+	})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	afd := moduleValue[AreaForecastDiscussionModule](t, output)
+	if afd.ShortTerm != "Showers increase this afternoon." {
+		t.Fatalf("ShortTerm = %q, want selected short term section", afd.ShortTerm)
+	}
+	if afd.Product != "" || len(afd.KeyMessages) != 0 || afd.LongTerm != "" {
+		t.Fatalf("AFD = %#v, want only short_term section", afd)
+	}
+}
+
+func TestAreaForecastDiscussionModuleUsesHourlyDefaultSections(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	ctx.Resolved.Definition = report.DefaultRegistry().MustLookup(report.Hourly)
+	var item module.ConfigItem
+	for _, candidate := range ctx.Resolved.Definition.Modules {
+		if candidate.ID == module.AreaForecastDiscussion {
+			item = candidate
+			break
+		}
+	}
+	if item.ID == "" {
+		t.Fatal("hourly default modules missing area_forecast_discussion")
+	}
+
+	output, err := registry.BuildModule(ctx, item)
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	afd := moduleValue[AreaForecastDiscussionModule](t, output)
+	if len(afd.KeyMessages) != 1 || afd.ShortTerm != "Showers increase this afternoon." {
+		t.Fatalf("AFD = %#v, want key messages and short term", afd)
+	}
+	if afd.Product != "" || afd.LongTerm != "" {
+		t.Fatalf("AFD = %#v, want product and long term omitted", afd)
+	}
+}
+
+func testModuleContext() ModuleContext {
+	generatedAt := mustParseModuleTime("2026-05-29T08:00:00-05:00")
+	definition := report.DefaultRegistry().MustLookup(report.Daily)
+	resolved := report.Resolved{
+		Definition:  definition,
+		GeneratedAt: generatedAt,
+		Timezone:    "America/Chicago",
+		ValidPeriod: timeutil.Period{
+			Start: mustParseModuleTime("2026-05-29T00:00:00-05:00"),
+			End:   mustParseModuleTime("2026-05-30T00:00:00-05:00"),
+		},
+	}
+	isDay := true
+	tempF := 74.4
+	apparentF := 75.6
+	humidity := 70.6
+	windMph := 8.4
+	windDirection := 190.0
+	narrativeTempF := 81.0
+	narrativePop := 60.0
+	narrativeWind := 12.0
+	narrativeWindDirection := 45.0
+	hourlyTempF := 76.0
+	hourlyPop := 70.0
+	hourlyHumidity := 66.0
+	hourlyWindMph := 14.0
+	updatedAt := mustParseModuleTime("2026-05-29T07:30:00-05:00")
+	return ModuleContext{
+		Resolved: resolved,
+		Collected: facts.CollectedFacts{
+			Current: &weatherdata.Current{
+				ConditionText:           "Partly cloudy",
+				IsDay:                   &isDay,
+				TemperatureF:            &tempF,
+				ApparentTemperatureF:    &apparentF,
+				RelativeHumidityPercent: &humidity,
+				WindSpeedMph:            &windMph,
+				WindDirectionDegrees:    &windDirection,
+			},
+			Narrative: &weatherdata.ForecastRun{
+				LocationID:   "test-grid",
+				LocationName: "Testville",
+				IssuedAt:     mustParseModuleTime("2026-05-29T10:30:00-05:00"),
+				UpdatedAt:    &updatedAt,
+				Product:      "narrative",
+				Periods: []weatherdata.ForecastPeriod{
+					{
+						Name:                              "Today",
+						StartTime:                         mustParseModuleTime("2026-05-29T06:00:00-05:00"),
+						EndTime:                           mustParseModuleTime("2026-05-29T18:00:00-05:00"),
+						IsDay:                             &isDay,
+						TextDescription:                   "Morning storms, then partly sunny.",
+						TemperatureF:                      floatPtr(narrativeTempF),
+						WindSpeedMph:                      &narrativeWind,
+						WindDirectionDegrees:              &narrativeWindDirection,
+						ProbabilityOfPrecipitationPercent: &narrativePop,
+					},
+				},
+			},
+			Hourly: &weatherdata.ForecastRun{
+				LocationID:   "test-grid",
+				LocationName: "Testville",
+				IssuedAt:     mustParseModuleTime("2026-05-29T10:30:00-05:00"),
+				UpdatedAt:    &updatedAt,
+				Product:      "hourly",
+				Periods: []weatherdata.ForecastPeriod{
+					{
+						StartTime:                         mustParseModuleTime("2026-05-29T08:00:00-05:00"),
+						EndTime:                           mustParseModuleTime("2026-05-29T09:00:00-05:00"),
+						TextDescription:                   "Showers likely.",
+						TemperatureF:                      &hourlyTempF,
+						WindSpeedMph:                      &hourlyWindMph,
+						WindDirectionDegrees:              &windDirection,
+						ProbabilityOfPrecipitationPercent: &hourlyPop,
+						RelativeHumidityPercent:           &hourlyHumidity,
+					},
+					{
+						StartTime:       mustParseModuleTime("2026-05-30T08:00:00-05:00"),
+						EndTime:         mustParseModuleTime("2026-05-30T09:00:00-05:00"),
+						TextDescription: "Tomorrow showers.",
+					},
+				},
+			},
+			Alerts: &weatherdata.AlertRun{Alerts: []json.RawMessage{
+				json.RawMessage(`{"event":"Flood Watch","headline":"Flooding possible","severity":"Moderate"}`),
+			}},
+			Discussion: &weatherdata.Discussion{
+				Product:     "discussion",
+				KeyMessages: []string{"Scattered showers are possible."},
+				ShortTerm:   &weatherdata.DiscussionSection{Text: "Showers increase this afternoon."},
+				LongTerm:    &weatherdata.DiscussionSection{Text: "Periodic rain chances continue."},
+			},
+			WeatherStory: &weatherdata.WeatherStory{
+				OfficeID:    "LSX",
+				StartTime:   mustParseModuleTime("2026-05-29T06:00:00-05:00"),
+				EndTime:     mustParseModuleTime("2026-05-29T18:00:00-05:00"),
+				UpdatedAt:   &updatedAt,
+				Title:       "Rain Chances",
+				Description: "Scattered showers are possible.",
+				AltText:     "Weather story graphic with rain chances.",
+				Priority:    true,
+				Order:       1,
+				DownloadURL: "https://example.invalid/story.png",
+			},
+			SourceProvenance: []weatherdata.Source{{Name: "alerts", FetchedAt: generatedAt}},
+			SourceWarnings: []weatherdata.SourceWarning{{
+				Source:             "daily",
+				Code:               "missing_source",
+				Severity:           "warning",
+				Message:            "daily source is missing",
+				Endpoint:           "/forecast/daily",
+				CompletenessImpact: "source omitted",
+			}},
+		},
+		Derived: facts.DerivedFacts{
+			ValidPeriodHourlyPeriods: []weatherdata.ForecastPeriod{
+				{
+					StartTime:                         mustParseModuleTime("2026-05-29T08:00:00-05:00"),
+					EndTime:                           mustParseModuleTime("2026-05-29T09:00:00-05:00"),
+					TextDescription:                   "Showers likely.",
+					TemperatureF:                      &hourlyTempF,
+					WindSpeedMph:                      &hourlyWindMph,
+					WindDirectionDegrees:              &windDirection,
+					ProbabilityOfPrecipitationPercent: &hourlyPop,
+					RelativeHumidityPercent:           &hourlyHumidity,
+				},
+			},
+			ValidPeriodNarrativePeriods: []weatherdata.ForecastPeriod{
+				{
+					Name:                              "Today",
+					StartTime:                         mustParseModuleTime("2026-05-29T06:00:00-05:00"),
+					EndTime:                           mustParseModuleTime("2026-05-29T18:00:00-05:00"),
+					IsDay:                             &isDay,
+					TextDescription:                   "Morning storms, then partly sunny.",
+					TemperatureF:                      floatPtr(narrativeTempF),
+					WindSpeedMph:                      &narrativeWind,
+					WindDirectionDegrees:              &narrativeWindDirection,
+					ProbabilityOfPrecipitationPercent: &narrativePop,
+				},
+			},
+			AlertOverlaps: []forecast.AlertOverlap{{
+				Event:    "Flood Watch",
+				Headline: "Flooding possible",
+				Severity: "Moderate",
+			}},
+		},
+		Units:    "us",
+		Timezone: "America/Chicago",
+		Location: &LocationContext{
+			ID:       "home",
+			Name:     "Brentwood",
+			Region:   "St. Louis Metro",
+			Timezone: "America/Chicago",
+		},
+	}
+}
+
+func moduleValue[T any](t *testing.T, output *module.Output) T {
+	t.Helper()
+	var value T
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("marshal module value: %v", err)
+	}
+	if err := json.Unmarshal(data, &value); err != nil {
+		t.Fatalf("decode module value: %v", err)
+	}
+	return value
+}
+
+func moduleDataPackageValue[T any](t *testing.T, output *module.Output) T {
+	t.Helper()
+	var value T
+	data, err := json.Marshal(output.DataPackageValue())
+	if err != nil {
+		t.Fatalf("marshal module data package value: %v", err)
+	}
+	if err := json.Unmarshal(data, &value); err != nil {
+		t.Fatalf("decode module data package value: %v", err)
+	}
+	return value
+}
+
+func mustMarshalModuleJSON(t *testing.T, value any) string {
+	t.Helper()
+	data, err := json.Marshal(value)
+	if err != nil {
+		t.Fatalf("marshal module value: %v", err)
+	}
+	return string(data)
+}
+
+func mustParseModuleTime(value string) time.Time {
+	parsed, err := time.Parse(time.RFC3339, value)
+	if err != nil {
+		panic(err)
+	}
+	return parsed
+}

internal/briefing/current_conditions_module.go

@@ -0,0 +1,104 @@
+package briefing
+
+import (
+	"strings"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+)
+
+type CurrentConditionsModule struct {
+	ConditionText           string `json:"condition_text,omitempty"`
+	ConditionTextLower      string `json:"condition_text_lower,omitempty"`
+	IsDay                   *bool  `json:"is_day,omitempty"`
+	TemperatureC            *int   `json:"temperature_c,omitempty"`
+	TemperatureF            *int   `json:"temperature_f,omitempty"`
+	ApparentTemperatureC    *int   `json:"apparent_temperature_c,omitempty"`
+	ApparentTemperatureF    *int   `json:"apparent_temperature_f,omitempty"`
+	DewpointC               *int   `json:"dewpoint_c,omitempty"`
+	DewpointF               *int   `json:"dewpoint_f,omitempty"`
+	RelativeHumidityPercent *int   `json:"relative_humidity_percent,omitempty"`
+	WindSpeedKmh            *int   `json:"wind_speed_kmh,omitempty"`
+	WindSpeedMph            *int   `json:"wind_speed_mph,omitempty"`
+	WindDirection           string `json:"wind_direction,omitempty"`
+	WindDirectionText       string `json:"wind_direction_text,omitempty"`
+}
+
+type CurrentConditionsPromptExport struct {
+	ConditionText           string `json:"condition_text,omitempty"`
+	IsDay                   *bool  `json:"is_day,omitempty"`
+	TemperatureC            *int   `json:"temperature_c,omitempty"`
+	TemperatureF            *int   `json:"temperature_f,omitempty"`
+	ApparentTemperatureC    *int   `json:"apparent_temperature_c,omitempty"`
+	ApparentTemperatureF    *int   `json:"apparent_temperature_f,omitempty"`
+	DewpointC               *int   `json:"dewpoint_c,omitempty"`
+	DewpointF               *int   `json:"dewpoint_f,omitempty"`
+	RelativeHumidityPercent *int   `json:"relative_humidity_percent,omitempty"`
+	WindSpeedKmh            *int   `json:"wind_speed_kmh,omitempty"`
+	WindSpeedMph            *int   `json:"wind_speed_mph,omitempty"`
+	WindDirection           string `json:"wind_direction,omitempty"`
+}
+
+func buildCurrentConditionsModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	current := ctx.Collected.Current
+	if current == nil {
+		return nil, nil
+	}
+	value := CurrentConditionsModule{
+		ConditionText:           current.ConditionText,
+		ConditionTextLower:      strings.ToLower(current.ConditionText),
+		IsDay:                   copyBool(current.IsDay),
+		TemperatureC:            roundedInt(current.TemperatureC),
+		TemperatureF:            roundedInt(current.TemperatureF),
+		ApparentTemperatureC:    roundedInt(current.ApparentTemperatureC),
+		ApparentTemperatureF:    roundedInt(current.ApparentTemperatureF),
+		DewpointC:               roundedInt(current.DewpointC),
+		DewpointF:               roundedInt(current.DewpointF),
+		RelativeHumidityPercent: roundedInt(current.RelativeHumidityPercent),
+		WindSpeedKmh:            roundedInt(current.WindSpeedKmh),
+		WindSpeedMph:            roundedInt(current.WindSpeedMph),
+		WindDirection:           windDirectionLabel(current.WindDirectionDegrees),
+		WindDirectionText:       windDirectionTextLabel(current.WindDirectionDegrees),
+	}
+	if value.isEmpty() {
+		return nil, nil
+	}
+	return &module.Output{ID: module.CurrentConditions, StanzaName: "current_conditions", Value: value}, nil
+}
+
+func exportCurrentConditionsPromptValue(value any) (any, error) {
+	rich, ok := value.(CurrentConditionsModule)
+	if !ok {
+		return nil, unexpectedPromptExportValue(value, CurrentConditionsModule{})
+	}
+	return CurrentConditionsPromptExport{
+		ConditionText:           rich.ConditionText,
+		IsDay:                   copyBool(rich.IsDay),
+		TemperatureC:            copyInt(rich.TemperatureC),
+		TemperatureF:            copyInt(rich.TemperatureF),
+		ApparentTemperatureC:    copyInt(rich.ApparentTemperatureC),
+		ApparentTemperatureF:    copyInt(rich.ApparentTemperatureF),
+		DewpointC:               copyInt(rich.DewpointC),
+		DewpointF:               copyInt(rich.DewpointF),
+		RelativeHumidityPercent: copyInt(rich.RelativeHumidityPercent),
+		WindSpeedKmh:            copyInt(rich.WindSpeedKmh),
+		WindSpeedMph:            copyInt(rich.WindSpeedMph),
+		WindDirection:           rich.WindDirection,
+	}, nil
+}
+
+func (v CurrentConditionsModule) isEmpty() bool {
+	return v.ConditionText == "" &&
+		v.ConditionTextLower == "" &&
+		v.IsDay == nil &&
+		v.TemperatureC == nil &&
+		v.TemperatureF == nil &&
+		v.ApparentTemperatureC == nil &&
+		v.ApparentTemperatureF == nil &&
+		v.DewpointC == nil &&
+		v.DewpointF == nil &&
+		v.RelativeHumidityPercent == nil &&
+		v.WindSpeedKmh == nil &&
+		v.WindSpeedMph == nil &&
+		v.WindDirection == "" &&
+		v.WindDirectionText == ""
+}

internal/briefing/daily_planning_module.go

@@ -0,0 +1,24 @@
+package briefing
+
+import "gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+
+type DailyPlanningModule struct {
+	MorningReadiness             []string `json:"morning_readiness,omitempty"`
+	CommuteSchoolWorkdayConcerns []string `json:"commute_school_workday_concerns,omitempty"`
+	OvernightChangeWatch         []string `json:"overnight_change_watch,omitempty"`
+}
+
+func buildDailyPlanningModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	summary := ctx.Derived.FirstDailySummary()
+	if summary == nil {
+		return &module.Output{ID: module.DailyPlanning, StanzaName: "daily_planning", Value: DailyPlanningModule{}}, nil
+	}
+	planning := buildMorningCommuteOvernightPlanning(summary)
+	value := DailyPlanningModule{}
+	if planning != nil {
+		value.MorningReadiness = append([]string(nil), planning.MorningReadiness...)
+		value.CommuteSchoolWorkdayConcerns = append([]string(nil), planning.CommuteSchoolWorkdayConcerns...)
+		value.OvernightChangeWatch = append([]string(nil), planning.OvernightChangeWatch...)
+	}
+	return &module.Output{ID: module.DailyPlanning, StanzaName: "daily_planning", Value: value}, nil
+}

internal/briefing/daily_test.go

@@ -1,327 +0,0 @@
-package briefing
-
-import (
-	"encoding/json"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-	"time"
-
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
-)
-
-func TestDailyBriefingFromRepresentativeFixture(t *testing.T) {
-	bundle := loadBundleFixture(t)
-	currentIsDay := true
-	currentTemp := 75.9
-	currentFeelsLike := 76.1
-	currentHumidity := 56.0
-	currentWind := 10.7
-	bundle.Current = &forecast.Current{
-		ConditionText:           "Partly cloudy",
-		IsDay:                   &currentIsDay,
-		TemperatureF:            &currentTemp,
-		ApparentTemperatureF:    &currentFeelsLike,
-		RelativeHumidityPercent: &currentHumidity,
-		WindSpeedMph:            &currentWind,
-	}
-	bundle.Sources[0].DataSHA256 = "abc123"
-	bundle.Warnings = []forecast.SourceWarning{{Source: "daily", Code: "missing_source", Severity: "warning"}}
-	location := mustLocation(t)
-	resolved := mustResolveDaily(t, location)
-	summary, err := forecast.BuildDailySummary(bundle, resolved.ValidPeriod.Start, location, defaultDayparts())
-	if err != nil {
-		t.Fatalf("BuildDailySummary() error = %v", err)
-	}
-
-	pkg, err := BuildDaily(BuildContext{
-		Resolved: resolved,
-		Bundle:   bundle,
-		Units:    "us",
-		Timezone: "America/Chicago",
-		Location: &LocationContext{
-			ID:       "home",
-			Name:     "Brentwood",
-			Region:   "St. Louis Metro",
-			Timezone: "America/Chicago",
-		},
-	}, summary)
-	if err != nil {
-		t.Fatalf("BuildDaily() error = %v", err)
-	}
-
-	if pkg.Metadata.SchemaVersion != SchemaVersion {
-		t.Fatalf("SchemaVersion = %q, want %q", pkg.Metadata.SchemaVersion, SchemaVersion)
-	}
-	if !strings.Contains(pkg.Metadata.RunID, "daily_today") {
-		t.Fatalf("RunID = %q, want report id", pkg.Metadata.RunID)
-	}
-	if pkg.Metadata.ReportID != report.DailyToday {
-		t.Fatalf("ReportID = %q, want daily_today", pkg.Metadata.ReportID)
-	}
-	if pkg.Metadata.Units != "us" || pkg.Metadata.Timezone != "America/Chicago" {
-		t.Fatalf("metadata units/timezone = %q/%q", pkg.Metadata.Units, pkg.Metadata.Timezone)
-	}
-	if pkg.Metadata.Location == nil || pkg.Metadata.Location.ID != "home" || pkg.Metadata.Location.Name != "Brentwood" || pkg.Metadata.Location.Region != "St. Louis Metro" || pkg.Metadata.Location.Timezone != "America/Chicago" {
-		t.Fatalf("metadata location = %#v, want configured prompt location", pkg.Metadata.Location)
-	}
-	if pkg.CurrentConditions == nil || pkg.CurrentConditions.ConditionText != "Partly cloudy" || pkg.CurrentConditions.TemperatureF == nil || *pkg.CurrentConditions.TemperatureF != currentTemp || pkg.CurrentConditions.RelativeHumidityPercent == nil || *pkg.CurrentConditions.RelativeHumidityPercent != currentHumidity {
-		t.Fatalf("CurrentConditions = %#v, want current conditions from bundle", pkg.CurrentConditions)
-	}
-	if len(pkg.Metadata.Sources) != 1 || pkg.Metadata.Sources[0].DataSHA256 != "abc123" {
-		t.Fatalf("Sources = %#v, want source hash", pkg.Metadata.Sources)
-	}
-	if len(pkg.Metadata.SourceWarnings) != 1 {
-		t.Fatalf("SourceWarnings length = %d, want 1", len(pkg.Metadata.SourceWarnings))
-	}
-	if pkg.Daily == nil {
-		t.Fatal("Daily = nil")
-	}
-	if len(pkg.Daily.Dayparts) != 5 {
-		t.Fatalf("Dayparts length = %d, want 5", len(pkg.Daily.Dayparts))
-	}
-	if len(pkg.Daily.RelevantAlerts) != 1 {
-		t.Fatalf("RelevantAlerts length = %d, want 1", len(pkg.Daily.RelevantAlerts))
-	}
-	if len(pkg.Daily.NarrativePeriods) != 1 {
-		t.Fatalf("NarrativePeriods length = %d, want 1", len(pkg.Daily.NarrativePeriods))
-	}
-	if len(pkg.Daily.Discussion.KeyMessages) != 1 {
-		t.Fatalf("Discussion key messages length = %d, want 1", len(pkg.Daily.Discussion.KeyMessages))
-	}
-	if pkg.Daily.Discussion.ShortTerm != "Morning showers taper as a weak boundary shifts east." {
-		t.Fatalf("Discussion.ShortTerm = %q, want short-term AFD narrative", pkg.Daily.Discussion.ShortTerm)
-	}
-	if pkg.Daily.Discussion.LongTerm != "Warmer and more humid conditions return with periodic rain chances." {
-		t.Fatalf("Discussion.LongTerm = %q, want long-term AFD narrative", pkg.Daily.Discussion.LongTerm)
-	}
-	if pkg.Daily.OutdoorWindows.Best == nil || pkg.Daily.OutdoorWindows.Worst == nil {
-		t.Fatalf("OutdoorWindows = %#v, want best and worst", pkg.Daily.OutdoorWindows)
-	}
-	if pkg.Daily.BottomLine.Summary == "" {
-		t.Fatal("BottomLine summary is empty")
-	}
-	if _, err := json.Marshal(pkg); err != nil {
-		t.Fatalf("briefing package is not JSON inspectable: %v", err)
-	}
-}
-
-func TestDailyBriefingQuietWeather(t *testing.T) {
-	location := mustLocation(t)
-	resolved := mustResolveDaily(t, location)
-	bundle := &forecast.Bundle{
-		Hourly: &forecast.ForecastRun{Periods: []forecast.ForecastPeriod{
-			quietHour("2026-05-29T09:00:00-05:00", "2026-05-29T10:00:00-05:00", 72),
-		}},
-		Alerts: &forecast.AlertRun{},
-		Sources: []forecast.Source{
-			{Name: "hourly", FetchedAt: time.Now()},
-			{Name: "alerts", Endpoint: "/alerts/active", FetchedAt: time.Now()},
-			{Name: "current", Endpoint: "/conditions/current", FetchedAt: time.Now(), Missing: true},
-		},
-		Warnings: []forecast.SourceWarning{{Source: "current", Code: "missing_source", Severity: "warning"}},
-	}
-	summary, err := forecast.BuildDailySummary(bundle, resolved.ValidPeriod.Start, location, defaultDayparts())
-	if err != nil {
-		t.Fatalf("BuildDailySummary() error = %v", err)
-	}
-	pkg, err := BuildDaily(BuildContext{Resolved: resolved, Bundle: bundle, Units: "us", Timezone: "America/Chicago"}, summary)
-	if err != nil {
-		t.Fatalf("BuildDaily() error = %v", err)
-	}
-	if pkg.Daily.BottomLine.Summary != "Conditions: Clear." {
-		t.Fatalf("BottomLine summary = %q, want clear conditions", pkg.Daily.BottomLine.Summary)
-	}
-	if pkg.CurrentConditions != nil {
-		t.Fatalf("CurrentConditions = %#v, want nil when current conditions are missing", pkg.CurrentConditions)
-	}
-	if len(pkg.Metadata.SourceWarnings) != 1 || pkg.Metadata.SourceWarnings[0].Source != "current" {
-		t.Fatalf("SourceWarnings = %#v, want current missing-source warning", pkg.Metadata.SourceWarnings)
-	}
-	if len(pkg.Daily.RelevantAlerts) != 0 {
-		t.Fatalf("RelevantAlerts length = %d, want 0", len(pkg.Daily.RelevantAlerts))
-	}
-	if pkg.Metadata.Alerts == nil {
-		t.Fatal("Metadata.Alerts = nil, want checked no-active-alerts status")
-	}
-	if !pkg.Metadata.Alerts.Checked || pkg.Metadata.Alerts.ActiveCount != 0 || pkg.Metadata.Alerts.RelevantCount != 0 || pkg.Metadata.Alerts.Missing {
-		t.Fatalf("Metadata.Alerts = %#v, want checked no-active-alerts status", pkg.Metadata.Alerts)
-	}
-	data, err := json.Marshal(pkg.Metadata.Alerts)
-	if err != nil {
-		t.Fatalf("marshal alert metadata: %v", err)
-	}
-	if strings.Contains(string(data), `"missing"`) {
-		t.Fatalf("alert metadata includes missing for checked empty alerts:\n%s", string(data))
-	}
-}
-
-func TestDailyBriefingAlertExclusion(t *testing.T) {
-	location := mustLocation(t)
-	resolved := mustResolveDaily(t, location)
-	bundle := loadBundleFixture(t)
-	bundle.Alerts = &forecast.AlertRun{Alerts: []json.RawMessage{
-		json.RawMessage(`{"event":"Future Watch","effective":"2026-06-01T00:00:00-05:00","expires":"2026-06-01T06:00:00-05:00"}`),
-	}}
-	summary, err := forecast.BuildDailySummary(bundle, resolved.ValidPeriod.Start, location, defaultDayparts())
-	if err != nil {
-		t.Fatalf("BuildDailySummary() error = %v", err)
-	}
-	pkg, err := BuildDaily(BuildContext{Resolved: resolved, Bundle: bundle, Units: "us", Timezone: "America/Chicago"}, summary)
-	if err != nil {
-		t.Fatalf("BuildDaily() error = %v", err)
-	}
-	if len(pkg.Daily.RelevantAlerts) != 0 {
-		t.Fatalf("RelevantAlerts length = %d, want 0", len(pkg.Daily.RelevantAlerts))
-	}
-}
-
-func TestTomorrowBriefingIncludesPlanningInputs(t *testing.T) {
-	location := mustLocation(t)
-	resolved, err := report.Resolve(report.DailyTomorrow, report.ResolveRequest{
-		Now:      mustParse("2026-05-29T18:00:00-05:00"),
-		Location: location,
-	})
-	if err != nil {
-		t.Fatalf("resolve tomorrow: %v", err)
-	}
-	precip := 70.0
-	wind := 34.0
-	summary := &forecast.DailySummary{
-		Date:   "2026-05-30",
-		Period: resolved.ValidPeriod,
-		Dayparts: []forecast.DaypartSummary{
-			{
-				Name: "overnight",
-				Period: timeutil.Period{
-					Start: mustParse("2026-05-30T00:00:00-05:00"),
-					End:   mustParse("2026-05-30T06:00:00-05:00"),
-				},
-				MaxPrecipitationProbability: &forecast.TimedValue{
-					Value: 40,
-					Time:  mustParse("2026-05-30T03:00:00-05:00"),
-				},
-			},
-			{
-				Name: "morning",
-				Period: timeutil.Period{
-					Start: mustParse("2026-05-30T06:00:00-05:00"),
-					End:   mustParse("2026-05-30T12:00:00-05:00"),
-				},
-				MaxPrecipitationProbability: &forecast.TimedValue{
-					Value: precip,
-					Time:  mustParse("2026-05-30T08:00:00-05:00"),
-				},
-				PeakWindGust: &forecast.TimedValue{
-					Value: wind,
-					Time:  mustParse("2026-05-30T09:00:00-05:00"),
-				},
-				Indicators: forecast.Indicators{Snow: true},
-			},
-		},
-	}
-
-	pkg, err := BuildDaily(BuildContext{
-		Resolved: resolved,
-		Units:    "us",
-		Timezone: "America/Chicago",
-	}, summary)
-	if err != nil {
-		t.Fatalf("BuildDaily() error = %v", err)
-	}
-
-	if pkg.Metadata.ReportID != report.DailyTomorrow || pkg.Metadata.Variant != "tomorrow" {
-		t.Fatalf("metadata report/variant = %q/%q, want tomorrow", pkg.Metadata.ReportID, pkg.Metadata.Variant)
-	}
-	if pkg.Daily.ForecastSummaryDate != "2026-05-30" {
-		t.Fatalf("ForecastSummaryDate = %q, want 2026-05-30", pkg.Daily.ForecastSummaryDate)
-	}
-	if pkg.Daily.Planning == nil {
-		t.Fatal("Planning = nil, want tomorrow planning inputs")
-	}
-	if len(pkg.Daily.Planning.MorningReadiness) == 0 || len(pkg.Daily.Planning.CommuteSchoolWorkdayConcerns) == 0 || len(pkg.Daily.Planning.OvernightChangeWatch) == 0 {
-		t.Fatalf("Planning = %#v, want populated planning inputs", pkg.Daily.Planning)
-	}
-	if !strings.Contains(strings.Join(pkg.Daily.Planning.MorningReadiness, " "), "precipitation") {
-		t.Fatalf("MorningReadiness = %#v, want precipitation note", pkg.Daily.Planning.MorningReadiness)
-	}
-}
-
-func TestSaveBriefingPackage(t *testing.T) {
-	pkg := Package{Metadata: Metadata{SchemaVersion: SchemaVersion}}
-	path := filepath.Join(t.TempDir(), "nested", "briefing.json")
-	if err := Save(path, pkg); err != nil {
-		t.Fatalf("Save() error = %v", err)
-	}
-	data, err := os.ReadFile(path)
-	if err != nil {
-		t.Fatalf("read briefing: %v", err)
-	}
-	if !strings.Contains(string(data), SchemaVersion) {
-		t.Fatalf("saved briefing missing schema version:\n%s", string(data))
-	}
-}
-
-func loadBundleFixture(t *testing.T) *forecast.Bundle {
-	t.Helper()
-	data, err := os.ReadFile(filepath.Join("..", "forecast", "testdata", "daily_bundle.json"))
-	if err != nil {
-		t.Fatalf("read bundle fixture: %v", err)
-	}
-	var bundle forecast.Bundle
-	if err := json.Unmarshal(data, &bundle); err != nil {
-		t.Fatalf("decode bundle fixture: %v", err)
-	}
-	return &bundle
-}
-
-func mustResolveDaily(t *testing.T, location *time.Location) report.Resolved {
-	t.Helper()
-	resolved, err := report.Resolve(report.DailyToday, report.ResolveRequest{
-		Now:      mustParse("2026-05-29T05:00:00-05:00"),
-		Location: location,
-	})
-	if err != nil {
-		t.Fatalf("resolve daily: %v", err)
-	}
-	return resolved
-}
-
-func defaultDayparts() []forecast.DaypartDefinition {
-	return []forecast.DaypartDefinition{
-		{Name: "overnight", Start: "00:00", End: "06:00"},
-		{Name: "morning", Start: "06:00", End: "10:00"},
-		{Name: "midday", Start: "10:00", End: "15:00"},
-		{Name: "afternoon", Start: "15:00", End: "17:00"},
-		{Name: "evening", Start: "17:00", End: "24:00"},
-	}
-}
-
-func quietHour(start string, end string, temperature float64) forecast.ForecastPeriod {
-	return forecast.ForecastPeriod{
-		StartTime:       mustParse(start),
-		EndTime:         mustParse(end),
-		TextDescription: "Clear",
-		TemperatureF:    &temperature,
-	}
-}
-
-func mustLocation(t *testing.T) *time.Location {
-	t.Helper()
-	location, err := time.LoadLocation("America/Chicago")
-	if err != nil {
-		t.Fatalf("load location: %v", err)
-	}
-	return location
-}
-
-func mustParse(value string) time.Time {
-	parsed, err := time.Parse(time.RFC3339, value)
-	if err != nil {
-		panic(err)
-	}
-	return parsed
-}

internal/briefing/derived_daily_summary_module.go

@@ -0,0 +1,153 @@
+package briefing
+
+import (
+	"fmt"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+type DerivedDailySummaryModule struct {
+	Date                          string   `json:"date,omitempty"`
+	HighTempF                     *int     `json:"high_temp_f,omitempty"`
+	LowTempF                      *int     `json:"low_temp_f,omitempty"`
+	DailyPrecipitationProbability *int     `json:"daily_precipitation_probability,omitempty"`
+	MostLikelyPrecipitationHour   string   `json:"most_likely_precipitation_hour,omitempty"`
+	ThunderMentioned              bool     `json:"thunder_mentioned"`
+	MaxWindGustMph                *int     `json:"max_wind_gust_mph,omitempty"`
+	HeatIndexMaxF                 *int     `json:"heat_index_max_f,omitempty"`
+	DominantConditions            []string `json:"dominant_conditions,omitempty"`
+	Hazards                       []string `json:"hazards,omitempty"`
+}
+
+func buildDerivedDailySummaryModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	summary := ctx.Derived.FirstDailySummary()
+	if summary == nil {
+		return nil, fmt.Errorf("daily summary facts are required")
+	}
+	value, err := derivedDailySummaryValue(*summary, ctx.Derived.PrecipTiming, ctx.Timezone)
+	if err != nil {
+		return nil, err
+	}
+	return &module.Output{ID: module.DerivedDailySummary, StanzaName: "derived_daily_summary", Value: value}, nil
+}
+
+func derivedDailySummaryValue(summary forecast.DailySummary, timing forecast.PrecipTiming, timezone string) (DerivedDailySummaryModule, error) {
+	value := DerivedDailySummaryModule{
+		Date:             friendlyDateLabel(summary.Date, timezone),
+		ThunderMentioned: timing.ThunderMentioned,
+	}
+	conditions := map[string]struct{}{}
+	hazards := map[string]struct{}{}
+	var temperature forecast.Range
+	var apparent forecast.Range
+	var maxPop *forecast.TimedValue
+	var maxGust *forecast.TimedValue
+	for _, daypart := range summary.Dayparts {
+		addRange(&temperature, daypart.Temperature)
+		addRange(&apparent, daypart.ApparentTemperature)
+		maxTimedValue(&maxPop, daypart.MaxPrecipitationProbability)
+		maxTimedValue(&maxGust, daypart.PeakWindGust)
+		if daypart.DominantCondition != "" {
+			conditions[daypart.DominantCondition] = struct{}{}
+		}
+		for _, hazard := range hazardsForIndicators(daypart.Indicators) {
+			hazards[hazard] = struct{}{}
+		}
+	}
+	for _, alert := range summary.AlertOverlaps {
+		if alert.Event != "" {
+			hazards[alert.Event] = struct{}{}
+		}
+	}
+	narrativeTemperature := narrativeTemperatureRange(summary.NarrativePeriods)
+	if narrativeTemperature.Max != nil {
+		value.HighTempF = roundedInt(narrativeTemperature.Max)
+	} else {
+		value.HighTempF = roundedInt(temperature.Max)
+	}
+	if narrativeTemperature.Min != nil {
+		value.LowTempF = roundedInt(narrativeTemperature.Min)
+	} else {
+		value.LowTempF = roundedInt(temperature.Min)
+	}
+	value.HeatIndexMaxF = roundedInt(apparent.Max)
+	narrativePrecipitation := narrativeMaxPrecipitation(summary.NarrativePeriods)
+	if narrativePrecipitation != nil {
+		value.DailyPrecipitationProbability = roundedInt(&narrativePrecipitation.Value)
+	} else if maxPop != nil {
+		value.DailyPrecipitationProbability = roundedInt(&maxPop.Value)
+	}
+	if maxPop != nil {
+		value.MostLikelyPrecipitationHour = mostLikelyPrecipitationHour(maxPop, timezone)
+	}
+	if maxGust != nil {
+		value.MaxWindGustMph = roundedInt(&maxGust.Value)
+	}
+	value.DominantConditions = sortedSet(conditions)
+	value.Hazards = sortedSet(hazards)
+	return value, nil
+}
+
+func narrativeTemperatureRange(periods []weatherdata.ForecastPeriod) forecast.Range {
+	var out forecast.Range
+	for _, period := range periods {
+		addNarrativeHigh(&out, period.TemperatureFMax)
+		addNarrativeLow(&out, period.TemperatureFMin)
+		if period.TemperatureF != nil && period.IsDay != nil {
+			if *period.IsDay {
+				addNarrativeHigh(&out, period.TemperatureF)
+			} else {
+				addNarrativeLow(&out, period.TemperatureF)
+			}
+		}
+	}
+	return out
+}
+
+func addNarrativeHigh(target *forecast.Range, value *float64) {
+	if value == nil {
+		return
+	}
+	if target.Max == nil || *value > *target.Max {
+		copied := *value
+		target.Max = &copied
+	}
+}
+
+func addNarrativeLow(target *forecast.Range, value *float64) {
+	if value == nil {
+		return
+	}
+	if target.Min == nil || *value < *target.Min {
+		copied := *value
+		target.Min = &copied
+	}
+}
+
+func narrativeMaxPrecipitation(periods []weatherdata.ForecastPeriod) *forecast.TimedValue {
+	var maxPop *forecast.TimedValue
+	for _, period := range periods {
+		if period.ProbabilityOfPrecipitationPercent == nil {
+			continue
+		}
+		value := forecast.TimedValue{
+			Value: *period.ProbabilityOfPrecipitationPercent,
+			Time:  period.StartTime,
+		}
+		maxTimedValue(&maxPop, &value)
+	}
+	return maxPop
+}
+
+func mostLikelyPrecipitationHour(maxPop *forecast.TimedValue, timezone string) string {
+	if maxPop == nil || maxPop.Value <= 0 {
+		return ""
+	}
+	percent := roundedInt(&maxPop.Value)
+	if percent == nil {
+		return ""
+	}
+	return fmt.Sprintf("%d%% at %s", *percent, clockLabel(maxPop.Time, timezone))
+}

internal/briefing/derived_daypart_summaries_module.go

@@ -0,0 +1,411 @@
+package briefing
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+	"unicode"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+type DerivedDaypartSummaryModule struct {
+	Date                     string   `json:"date,omitempty"`
+	DisplayName              string   `json:"display_name,omitempty"`
+	PeriodBegins             string   `json:"period_begins,omitempty"`
+	PeriodEnds               string   `json:"period_ends,omitempty"`
+	TempRangeF               string   `json:"temp_range_f,omitempty"`
+	TemperaturePhraseF       string   `json:"temperature_phrase_f,omitempty"`
+	ApparentTempRangeF       string   `json:"apparent_temp_range_f,omitempty"`
+	MaxPopPercent            *int     `json:"max_pop_percent,omitempty"`
+	MaxPopTime               string   `json:"max_pop_time,omitempty"`
+	MaxPopTimeLabel          string   `json:"max_pop_time_label,omitempty"`
+	MentionPrecipitation     bool     `json:"mention_precipitation,omitempty"`
+	MaxWindGustMph           *int     `json:"max_wind_gust_mph,omitempty"`
+	MaxWindGustTime          string   `json:"max_wind_gust_time,omitempty"`
+	DominantCondition        string   `json:"dominant_condition,omitempty"`
+	DominantConditionLower   string   `json:"dominant_condition_lower,omitempty"`
+	DominantConditionDisplay string   `json:"dominant_condition_display,omitempty"`
+	TemperatureTrend         string   `json:"temperature_trend,omitempty"`
+	TemperatureStartPhraseF  string   `json:"temperature_start_phrase_f,omitempty"`
+	TemperatureEndPhraseF    string   `json:"temperature_end_phrase_f,omitempty"`
+	TemperaturePeakPhraseF   string   `json:"temperature_peak_phrase_f,omitempty"`
+	TemperatureSteadyPhraseF string   `json:"temperature_steady_phrase_f,omitempty"`
+	NotableConditions        []string `json:"notable_conditions,omitempty"`
+	Snow                     bool     `json:"snow,omitempty"`
+	Ice                      bool     `json:"ice,omitempty"`
+	Fog                      bool     `json:"fog,omitempty"`
+	Heat                     bool     `json:"heat,omitempty"`
+	Cold                     bool     `json:"cold,omitempty"`
+	Wind                     bool     `json:"wind,omitempty"`
+	RelevantAlertCount       int      `json:"relevant_alert_count,omitempty"`
+}
+
+type DerivedDaypartSummaryPromptExport struct {
+	Date                     string   `json:"date,omitempty"`
+	DisplayName              string   `json:"display_name,omitempty"`
+	PeriodBegins             string   `json:"period_begins,omitempty"`
+	PeriodEnds               string   `json:"period_ends,omitempty"`
+	TempRangeF               string   `json:"temp_range_f,omitempty"`
+	ApparentTempRangeF       string   `json:"apparent_temp_range_f,omitempty"`
+	MaxPopPercent            *int     `json:"max_pop_percent,omitempty"`
+	MaxPopTime               string   `json:"max_pop_time,omitempty"`
+	MentionPrecipitation     bool     `json:"mention_precipitation,omitempty"`
+	MaxWindGustMph           *int     `json:"max_wind_gust_mph,omitempty"`
+	MaxWindGustTime          string   `json:"max_wind_gust_time,omitempty"`
+	DominantCondition        string   `json:"dominant_condition,omitempty"`
+	TemperatureTrend         string   `json:"temperature_trend,omitempty"`
+	TemperatureStartPhraseF  string   `json:"temperature_start_phrase_f,omitempty"`
+	TemperatureEndPhraseF    string   `json:"temperature_end_phrase_f,omitempty"`
+	TemperaturePeakPhraseF   string   `json:"temperature_peak_phrase_f,omitempty"`
+	TemperatureSteadyPhraseF string   `json:"temperature_steady_phrase_f,omitempty"`
+	NotableConditions        []string `json:"notable_conditions,omitempty"`
+	Snow                     bool     `json:"snow,omitempty"`
+	Ice                      bool     `json:"ice,omitempty"`
+	Fog                      bool     `json:"fog,omitempty"`
+	Heat                     bool     `json:"heat,omitempty"`
+	Cold                     bool     `json:"cold,omitempty"`
+	Wind                     bool     `json:"wind,omitempty"`
+	RelevantAlertCount       int      `json:"relevant_alert_count,omitempty"`
+}
+
+func buildDerivedDaypartSummariesModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	if len(ctx.Derived.DaypartSummaries) == 0 {
+		return nil, fmt.Errorf("daypart summary facts are required")
+	}
+	value := map[string]DerivedDaypartSummaryModule{}
+	prefixDates := multipleSummaryDates(ctx.Derived.DailySummaries)
+	for _, daypart := range ctx.Derived.DaypartSummaries {
+		key := daypartKey(daypart, prefixDates)
+		value[key] = derivedDaypartSummaryValue(daypart, ctx.Timezone)
+	}
+	return &module.Output{ID: module.DerivedDaypartSummaries, StanzaName: "derived_daypart_summaries", Value: value}, nil
+}
+
+func exportDerivedDaypartSummariesPromptValue(value any) (any, error) {
+	rich, ok := value.(map[string]DerivedDaypartSummaryModule)
+	if !ok {
+		return nil, unexpectedPromptExportValue(value, map[string]DerivedDaypartSummaryModule{})
+	}
+	out := make(map[string]DerivedDaypartSummaryPromptExport, len(rich))
+	for key, daypart := range rich {
+		out[key] = derivedDaypartSummaryPromptValue(daypart)
+	}
+	return out, nil
+}
+
+func derivedDaypartSummaryPromptValue(rich DerivedDaypartSummaryModule) DerivedDaypartSummaryPromptExport {
+	maxPopTime := rich.MaxPopTime
+	if rich.MaxPopTimeLabel != "" {
+		maxPopTime = rich.MaxPopTimeLabel
+	}
+	return DerivedDaypartSummaryPromptExport{
+		Date:                     rich.Date,
+		DisplayName:              rich.DisplayName,
+		PeriodBegins:             rich.PeriodBegins,
+		PeriodEnds:               rich.PeriodEnds,
+		TempRangeF:               rich.TempRangeF,
+		ApparentTempRangeF:       rich.ApparentTempRangeF,
+		MaxPopPercent:            copyInt(rich.MaxPopPercent),
+		MaxPopTime:               maxPopTime,
+		MentionPrecipitation:     rich.MentionPrecipitation,
+		MaxWindGustMph:           copyInt(rich.MaxWindGustMph),
+		MaxWindGustTime:          rich.MaxWindGustTime,
+		DominantCondition:        rich.DominantCondition,
+		TemperatureTrend:         rich.TemperatureTrend,
+		TemperatureStartPhraseF:  rich.TemperatureStartPhraseF,
+		TemperatureEndPhraseF:    rich.TemperatureEndPhraseF,
+		TemperaturePeakPhraseF:   rich.TemperaturePeakPhraseF,
+		TemperatureSteadyPhraseF: rich.TemperatureSteadyPhraseF,
+		NotableConditions:        append([]string(nil), rich.NotableConditions...),
+		Snow:                     rich.Snow,
+		Ice:                      rich.Ice,
+		Fog:                      rich.Fog,
+		Heat:                     rich.Heat,
+		Cold:                     rich.Cold,
+		Wind:                     rich.Wind,
+		RelevantAlertCount:       rich.RelevantAlertCount,
+	}
+}
+
+func derivedDaypartSummaryValue(daypart forecast.DaypartSummary, timezone string) DerivedDaypartSummaryModule {
+	temperature := daypartTemperatureDisplay(daypart)
+	value := DerivedDaypartSummaryModule{
+		Date:                     localDateLabel(daypart.Period.Start, timezone),
+		DisplayName:              titleWord(strings.TrimSpace(daypart.Name)),
+		PeriodBegins:             friendlyPeriodBeginsLabel(daypart.Period, timezone),
+		PeriodEnds:               friendlyPeriodEndsLabel(daypart.Period, timezone),
+		TempRangeF:               rangeLabel(daypart.Temperature),
+		TemperaturePhraseF:       temperaturePhraseF(daypart.Temperature),
+		TemperatureTrend:         temperature.Trend,
+		TemperatureStartPhraseF:  temperature.StartPhrase,
+		TemperatureEndPhraseF:    temperature.EndPhrase,
+		TemperaturePeakPhraseF:   temperature.PeakPhrase,
+		TemperatureSteadyPhraseF: temperature.SteadyPhrase,
+		ApparentTempRangeF:       daypartApparentRangeLabel(daypart.ApparentTemperature),
+		DominantCondition:        daypart.DominantCondition,
+		DominantConditionLower:   strings.ToLower(daypart.DominantCondition),
+		DominantConditionDisplay: sentenceCase(daypart.DominantCondition),
+		NotableConditions:        append([]string(nil), daypart.NotableConditions...),
+		Snow:                     daypart.Indicators.Snow,
+		Ice:                      daypart.Indicators.Ice,
+		Fog:                      daypart.Indicators.Fog,
+		Heat:                     daypart.Indicators.Heat,
+		Cold:                     daypart.Indicators.Cold,
+		Wind:                     daypart.Indicators.Wind,
+		RelevantAlertCount:       len(daypart.AlertOverlaps),
+	}
+	if daypart.MaxPrecipitationProbability != nil {
+		value.MaxPopPercent = roundedInt(&daypart.MaxPrecipitationProbability.Value)
+		value.MaxPopTime = clockLabel(daypart.MaxPrecipitationProbability.Time, timezone)
+		value.MaxPopTimeLabel = hourMinuteLabel(daypart.MaxPrecipitationProbability.Time, timezone)
+		value.MentionPrecipitation = mentionHourlyForecastPrecipitation(&daypart.MaxPrecipitationProbability.Value, DefaultHourlyForecastPrecipMentionProbabilityThreshold)
+	}
+	if daypart.PeakWindGust != nil {
+		value.MaxWindGustMph = roundedInt(&daypart.PeakWindGust.Value)
+		value.MaxWindGustTime = clockLabel(daypart.PeakWindGust.Time, timezone)
+	}
+	return value
+}
+
+type daypartTemperaturePresentation struct {
+	Trend        string
+	StartPhrase  string
+	EndPhrase    string
+	PeakPhrase   string
+	SteadyPhrase string
+}
+
+type temperaturePoint struct {
+	value     int
+	bandIndex int
+	phrase    string
+}
+
+const (
+	temperatureTrendRising  = "rising"
+	temperatureTrendFalling = "falling"
+	temperatureTrendPeaking = "peaking"
+	temperatureTrendSteady  = "steady"
+)
+
+func daypartTemperatureDisplay(daypart forecast.DaypartSummary) daypartTemperaturePresentation {
+	points := daypartTemperaturePoints(daypart.HourlyPeriods)
+	if len(points) == 0 {
+		return daypartSteadyTemperatureDisplay(temperaturePhraseF(daypart.Temperature))
+	}
+	if len(points) == 1 {
+		return daypartSteadyTemperatureDisplay(points[0].phrase)
+	}
+
+	first := points[0]
+	last := points[len(points)-1]
+	peak, peakIndex := peakTemperaturePoint(points)
+	if peakIndex > 0 && peakIndex < len(points)-1 && peak.bandIndex > first.bandIndex && peak.bandIndex > last.bandIndex {
+		return daypartTemperaturePresentation{
+			Trend:      temperatureTrendPeaking,
+			PeakPhrase: peak.phrase,
+		}
+	}
+	switch {
+	case first.bandIndex < last.bandIndex:
+		return daypartTemperaturePresentation{
+			Trend:       temperatureTrendRising,
+			StartPhrase: first.phrase,
+			EndPhrase:   last.phrase,
+		}
+	case first.bandIndex > last.bandIndex:
+		return daypartTemperaturePresentation{
+			Trend:       temperatureTrendFalling,
+			StartPhrase: first.phrase,
+			EndPhrase:   last.phrase,
+		}
+	default:
+		return daypartSteadyTemperatureDisplay(temperaturePhraseF(daypart.Temperature))
+	}
+}
+
+func daypartSteadyTemperatureDisplay(phrase string) daypartTemperaturePresentation {
+	if phrase == "" {
+		return daypartTemperaturePresentation{}
+	}
+	return daypartTemperaturePresentation{
+		Trend:        temperatureTrendSteady,
+		SteadyPhrase: phrase,
+	}
+}
+
+func daypartTemperaturePoints(periods []weatherdata.ForecastPeriod) []temperaturePoint {
+	sorted := append([]weatherdata.ForecastPeriod(nil), periods...)
+	sort.SliceStable(sorted, func(i int, j int) bool {
+		return sorted[i].StartTime.Before(sorted[j].StartTime)
+	})
+	points := make([]temperaturePoint, 0, len(sorted))
+	for _, period := range sorted {
+		temperature := forecastPeriodTemperatureF(period)
+		if temperature == nil {
+			continue
+		}
+		rounded := roundedInt(temperature)
+		if rounded == nil {
+			continue
+		}
+		points = append(points, temperaturePoint{
+			value:     *rounded,
+			bandIndex: temperatureBandIndex(*rounded),
+			phrase:    temperatureBandPhrase(*rounded),
+		})
+	}
+	return points
+}
+
+func peakTemperaturePoint(points []temperaturePoint) (temperaturePoint, int) {
+	peak := points[0]
+	peakIndex := 0
+	for index, point := range points[1:] {
+		if point.value > peak.value {
+			peak = point
+			peakIndex = index + 1
+		}
+	}
+	return peak, peakIndex
+}
+
+func forecastPeriodTemperatureF(period weatherdata.ForecastPeriod) *float64 {
+	switch {
+	case period.TemperatureF != nil:
+		return period.TemperatureF
+	case period.TemperatureFMax != nil:
+		return period.TemperatureFMax
+	case period.TemperatureFMin != nil:
+		return period.TemperatureFMin
+	case period.TemperatureC != nil:
+		value := celsiusToFahrenheit(*period.TemperatureC)
+		return &value
+	case period.TemperatureCMax != nil:
+		value := celsiusToFahrenheit(*period.TemperatureCMax)
+		return &value
+	case period.TemperatureCMin != nil:
+		value := celsiusToFahrenheit(*period.TemperatureCMin)
+		return &value
+	default:
+		return nil
+	}
+}
+
+func celsiusToFahrenheit(value float64) float64 {
+	return value*9/5 + 32
+}
+
+func temperatureBandIndex(value int) int {
+	decade := (value / 10) * 10
+	remainder := value - decade
+	if remainder < 0 {
+		remainder = -remainder
+	}
+	band := 1
+	switch {
+	case remainder <= 3:
+		band = 0
+	case remainder >= 7:
+		band = 2
+	}
+	return decade*3 + band
+}
+
+func temperaturePhraseF(value forecast.Range) string {
+	if value.Min == nil && value.Max == nil {
+		return ""
+	}
+	if value.Min != nil && value.Max != nil {
+		low := roundedInt(value.Min)
+		high := roundedInt(value.Max)
+		if low == nil || high == nil {
+			return ""
+		}
+		lowPhrase := temperatureBandPhrase(*low)
+		highPhrase := temperatureBandPhrase(*high)
+		if lowPhrase == highPhrase {
+			return lowPhrase
+		}
+		return lowPhrase + " to " + highPhrase
+	}
+	if value.Min != nil {
+		low := roundedInt(value.Min)
+		if low == nil {
+			return ""
+		}
+		return temperatureBandPhrase(*low)
+	}
+	high := roundedInt(value.Max)
+	if high == nil {
+		return ""
+	}
+	return temperatureBandPhrase(*high)
+}
+
+func temperatureBandPhrase(value int) string {
+	decade := (value / 10) * 10
+	remainder := value - decade
+	if remainder < 0 {
+		remainder = -remainder
+	}
+	qualifier := "mid"
+	switch {
+	case remainder <= 3:
+		qualifier = "low"
+	case remainder >= 7:
+		qualifier = "upper"
+	}
+	return fmt.Sprintf("%s %ds", qualifier, decade)
+}
+
+func sentenceCase(value string) string {
+	trimmed := strings.TrimSpace(value)
+	if trimmed == "" {
+		return ""
+	}
+	runes := []rune(trimmed)
+	runes[0] = unicode.ToUpper(runes[0])
+	return string(runes)
+}
+
+func multipleSummaryDates(summaries []forecast.DailySummary) bool {
+	seen := map[string]struct{}{}
+	for _, summary := range summaries {
+		seen[summary.Date] = struct{}{}
+	}
+	return len(seen) > 1
+}
+
+func daypartKey(daypart forecast.DaypartSummary, prefixDate bool) string {
+	key := normalizedKey(daypart.Name)
+	if key == "" {
+		key = "unnamed"
+	}
+	if !prefixDate {
+		return key
+	}
+	return daypart.Period.Start.Format(timeutil.DateLayout) + "_" + key
+}
+
+func normalizedKey(value string) string {
+	lower := strings.ToLower(strings.TrimSpace(value))
+	var out strings.Builder
+	lastUnderscore := false
+	for _, r := range lower {
+		if unicode.IsLetter(r) || unicode.IsDigit(r) {
+			out.WriteRune(r)
+			lastUnderscore = false
+			continue
+		}
+		if !lastUnderscore {
+			out.WriteByte('_')
+			lastUnderscore = true
+		}
+	}
+	return strings.Trim(out.String(), "_")
+}

internal/briefing/derived_modules_test.go

@@ -0,0 +1,773 @@
+package briefing
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/facts"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+func TestDerivedDailySummaryModulePackagesOrdinaryForecast(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := derivedModuleContext(report.Daily)
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DerivedDailySummary})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[DerivedDailySummaryModule](t, output)
+
+	if value.Date != "Friday, May 29, 2026" {
+		t.Fatalf("Date = %q, want friendly local date", value.Date)
+	}
+	if value.HighTempF == nil || *value.HighTempF != 88 || value.LowTempF == nil || *value.LowTempF != 64 {
+		t.Fatalf("daily temperatures = %#v/%#v, want narrative 88/64", value.HighTempF, value.LowTempF)
+	}
+	if value.DailyPrecipitationProbability == nil || *value.DailyPrecipitationProbability != 55 {
+		t.Fatalf("DailyPrecipitationProbability = %#v, want narrative 55", value.DailyPrecipitationProbability)
+	}
+	if value.MostLikelyPrecipitationHour != "80% at 12 PM" || !value.ThunderMentioned {
+		t.Fatalf("precip timing = %#v, want most likely hour and thunder", value)
+	}
+	if !containsString(value.DominantConditions, "Thunderstorms with gusty wind") || containsString(value.DominantConditions, "Morning storms, then partly sunny.") {
+		t.Fatalf("DominantConditions = %#v, want daypart conditions rather than narrative conditions", value.DominantConditions)
+	}
+	if value.MaxWindGustMph == nil || *value.MaxWindGustMph != 42 {
+		t.Fatalf("MaxWindGustMph = %#v, want 42", value.MaxWindGustMph)
+	}
+	if value.HeatIndexMaxF == nil || *value.HeatIndexMaxF != 101 {
+		t.Fatalf("HeatIndexMaxF = %#v, want 101", value.HeatIndexMaxF)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("marshal daily summary: %v", err)
+	}
+	jsonText := string(data)
+	for _, field := range []string{"high_temp_f", "low_temp_f", "daily_precipitation_probability", "most_likely_precipitation_hour", "heat_index_max_f"} {
+		if !strings.Contains(jsonText, field) {
+			t.Fatalf("daily json = %s, want field %s", jsonText, field)
+		}
+	}
+	for _, removed := range []string{"max_pop_percent", "max_pop_window", "first_precip_hour", "last_precip_hour"} {
+		if strings.Contains(jsonText, removed) {
+			t.Fatalf("daily json = %s, want removed field %s omitted", jsonText, removed)
+		}
+	}
+	if strings.Contains(jsonText, "qpf") {
+		t.Fatalf("daily json = %s, want no QPF fields without upstream QPF facts", jsonText)
+	}
+}
+
+func TestDerivedDailySummaryModuleFallsBackWithoutNarrativeFacts(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := derivedModuleContext(report.Daily)
+	ctx.Derived.DailySummaries[0].NarrativePeriods = nil
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DerivedDailySummary})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[DerivedDailySummaryModule](t, output)
+
+	if value.HighTempF == nil || *value.HighTempF != 96 || value.LowTempF == nil || *value.LowTempF != 31 {
+		t.Fatalf("daily temperatures = %#v/%#v, want fallback 96/31", value.HighTempF, value.LowTempF)
+	}
+	if value.DailyPrecipitationProbability == nil || *value.DailyPrecipitationProbability != 80 {
+		t.Fatalf("DailyPrecipitationProbability = %#v, want hourly fallback 80", value.DailyPrecipitationProbability)
+	}
+	if len(value.DominantConditions) == 0 || !containsString(value.DominantConditions, "Thunderstorms with gusty wind") {
+		t.Fatalf("DominantConditions = %#v, want fallback daypart conditions", value.DominantConditions)
+	}
+}
+
+func TestPrecipTimingModuleHandlesRainyAndDryForecasts(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := derivedModuleContext(report.Daily)
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.PrecipTiming})
+	if err != nil {
+		t.Fatalf("BuildModule(rainy) error = %v", err)
+	}
+	rainy := moduleValue[PrecipTimingModule](t, output)
+	if rainy.MaxPopPercent == nil || *rainy.MaxPopPercent != 80 || rainy.MaxPopTime != "12 PM" || rainy.ProbabilityThreshold != forecast.DefaultPrecipWindowProbabilityThreshold || !rainy.ThunderMentioned {
+		t.Fatalf("rainy precip timing = %#v, want peak, threshold, and thunder", rainy)
+	}
+	if len(rainy.PrecipitationWindows) != 2 {
+		t.Fatalf("rainy precipitation windows = %#v, want two windows", rainy.PrecipitationWindows)
+	}
+	if rainy.PrecipitationWindows[0].PeriodBegins != "2026-05-29 at 8:00 AM" || rainy.PrecipitationWindows[0].PeriodBeginsHourLabel != "8:00 AM" || rainy.PrecipitationWindows[0].PeriodEnds != "2026-05-29 at 9:00 AM" || rainy.PrecipitationWindows[0].PeriodEndsHourLabel != "9:00 AM" || rainy.PrecipitationWindows[0].MaxPopPercent == nil || *rainy.PrecipitationWindows[0].MaxPopPercent != 60 || rainy.PrecipitationWindows[0].MaxPopHourLabel != "8:00 AM" {
+		t.Fatalf("first precipitation window = %#v, want 8-9 AM at 60%%", rainy.PrecipitationWindows[0])
+	}
+	if rainy.PrecipitationWindows[1].PeriodBegins != "2026-05-29 at 12:00 PM" || rainy.PrecipitationWindows[1].PeriodBeginsHourLabel != "12:00 PM" || rainy.PrecipitationWindows[1].PeriodEnds != "2026-05-29 at 2:00 PM" || rainy.PrecipitationWindows[1].PeriodEndsHourLabel != "2:00 PM" || rainy.PrecipitationWindows[1].MaxPopPercent == nil || *rainy.PrecipitationWindows[1].MaxPopPercent != 80 || rainy.PrecipitationWindows[1].MaxPopHourLabel != "12:00 PM" {
+		t.Fatalf("second precipitation window = %#v, want noon-2 PM at 80%%", rainy.PrecipitationWindows[1])
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("marshal precip timing: %v", err)
+	}
+	if !strings.Contains(string(data), "precipitation_windows") || !strings.Contains(string(data), "probability_threshold") || !strings.Contains(string(data), "period_begins_hour_label") || !strings.Contains(string(data), "max_pop_hour_label") {
+		t.Fatalf("precip timing json = %s, want threshold and windows", string(data))
+	}
+	if strings.Contains(string(data), `"start"`) || strings.Contains(string(data), `"end"`) {
+		t.Fatalf("precip timing json = %s, want period_begins/period_ends instead of start/end", string(data))
+	}
+	if strings.Contains(string(data), "first_precip_hour") || strings.Contains(string(data), "last_precip_hour") {
+		t.Fatalf("precip timing json = %s, want no ambiguous first/last fields", string(data))
+	}
+
+	ctx.Derived.PrecipTiming = forecast.BuildPrecipTiming([]weatherdata.ForecastPeriod{derivedHour("2026-05-29T10:00:00-05:00", "Sunny", 0, 70, nil, 5)})
+	output, err = registry.BuildModule(ctx, module.ConfigItem{ID: module.PrecipTiming})
+	if err != nil {
+		t.Fatalf("BuildModule(dry) error = %v", err)
+	}
+	dry := moduleValue[PrecipTimingModule](t, output)
+	if len(dry.PrecipitationWindows) != 0 || dry.ThunderMentioned {
+		t.Fatalf("dry precip timing = %#v, want no precip windows and no thunder", dry)
+	}
+	if dry.MaxPopPercent == nil || *dry.MaxPopPercent != 0 {
+		t.Fatalf("dry MaxPopPercent = %#v, want checked zero", dry.MaxPopPercent)
+	}
+}
+
+func TestPrecipTimingModuleUsesDerivedTimingWithoutDaypartSummaries(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := derivedModuleContext(report.Hourly)
+	ctx.Derived.DailySummaries = nil
+	ctx.Derived.DaypartSummaries = nil
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.PrecipTiming})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[PrecipTimingModule](t, output)
+	if value.MaxPopPercent == nil || *value.MaxPopPercent != 80 || len(value.PrecipitationWindows) != 2 {
+		t.Fatalf("precip timing = %#v, want derived timing without daypart summaries", value)
+	}
+}
+
+func TestDerivedDaypartSummariesExposeConfiguredKeysAndHazards(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := derivedModuleContext(report.Daily)
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DerivedDaypartSummaries})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[map[string]DerivedDaypartSummaryModule](t, output)
+
+	morning, ok := value["morning"]
+	if !ok {
+		t.Fatalf("daypart keys = %#v, want configured morning key", value)
+	}
+	if morning.TempRangeF != "58" || morning.MaxPopPercent == nil || *morning.MaxPopPercent != 60 {
+		t.Fatalf("morning = %#v, want temp range and precip peak", morning)
+	}
+	if morning.DisplayName != "Morning" || morning.DominantConditionLower != "showers" || morning.DominantConditionDisplay != "Showers" || morning.TemperaturePhraseF != "upper 50s" || morning.TemperatureTrend != "steady" || morning.TemperatureSteadyPhraseF != "upper 50s" || !morning.MentionPrecipitation || morning.MaxPopTimeLabel != "6:00 AM" {
+		t.Fatalf("morning presentation fields = %#v, want display facts for template composition", morning)
+	}
+	if morning.Date != "2026-05-29" || morning.PeriodBegins != "2026-05-29 at 6:00 AM" || morning.PeriodEnds != "2026-05-29 at 12:00 PM" {
+		t.Fatalf("morning period = %q/%q/%q, want friendly local date and period labels", morning.Date, morning.PeriodBegins, morning.PeriodEnds)
+	}
+	overnight := value["overnight"]
+	if overnight.MentionPrecipitation {
+		t.Fatalf("overnight MentionPrecipitation = true, want false below threshold")
+	}
+	afternoon := value["afternoon"]
+	if !afternoon.Heat || !afternoon.Wind || afternoon.MaxWindGustMph == nil || *afternoon.MaxWindGustMph != 42 {
+		t.Fatalf("afternoon = %#v, want heat and wind hazard values", afternoon)
+	}
+	if !overnight.Cold {
+		t.Fatalf("overnight = %#v, want cold hazard", overnight)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("marshal daypart summaries: %v", err)
+	}
+	jsonText := string(data)
+	for _, field := range []string{"date", "display_name", "period_begins", "period_ends", "temp_range_f", "temperature_phrase_f", "temperature_trend", "temperature_steady_phrase_f", "max_pop_percent", "max_pop_time_label", "mention_precipitation", "max_wind_gust_mph", "dominant_condition", "dominant_condition_lower", "dominant_condition_display"} {
+		if !strings.Contains(jsonText, field) {
+			t.Fatalf("daypart json = %s, want field %s", jsonText, field)
+		}
+	}
+	if strings.Contains(jsonText, `"period":`) || strings.Contains(jsonText, `T06:00:00`) {
+		t.Fatalf("daypart json = %s, want friendly period label instead of raw timestamps", jsonText)
+	}
+}
+
+func TestDerivedDaypartSummariesPromptExportOmitsTemplateHelpers(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := derivedModuleContext(report.Daily)
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DerivedDaypartSummaries})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	richText := mustMarshalModuleJSON(t, output.Value)
+	for _, field := range []string{"temperature_phrase_f", "dominant_condition_lower", "dominant_condition_display", "max_pop_time_label"} {
+		if !strings.Contains(richText, field) {
+			t.Fatalf("rich daypart json = %s, want helper field %s", richText, field)
+		}
+	}
+
+	prompt := moduleDataPackageValue[map[string]DerivedDaypartSummaryPromptExport](t, output)
+	morning, ok := prompt["morning"]
+	if !ok {
+		t.Fatalf("daypart prompt keys = %#v, want morning", prompt)
+	}
+	if morning.Date != "2026-05-29" || morning.DisplayName != "Morning" || morning.PeriodBegins != "2026-05-29 at 6:00 AM" || morning.PeriodEnds != "2026-05-29 at 12:00 PM" {
+		t.Fatalf("morning prompt period = %#v, want date/display/period labels", morning)
+	}
+	if morning.TempRangeF != "58" || morning.MaxPopPercent == nil || *morning.MaxPopPercent != 60 || morning.MaxPopTime != "6:00 AM" || !morning.MentionPrecipitation {
+		t.Fatalf("morning prompt precip/temp = %#v, want factual prompt fields with friendly max pop time", morning)
+	}
+	if morning.DominantCondition != "Showers" || morning.TemperatureTrend != "steady" || morning.TemperatureSteadyPhraseF != "upper 50s" {
+		t.Fatalf("morning prompt condition/trend = %#v, want condition and trend fields", morning)
+	}
+	if len(morning.NotableConditions) == 0 || morning.NotableConditions[0] != "Showers" {
+		t.Fatalf("morning prompt notable conditions = %#v, want copied conditions", morning.NotableConditions)
+	}
+	afternoon := prompt["afternoon"]
+	if !afternoon.Heat || !afternoon.Wind || afternoon.MaxWindGustMph == nil || *afternoon.MaxWindGustMph != 42 || afternoon.RelevantAlertCount != 1 {
+		t.Fatalf("afternoon prompt = %#v, want hazard, wind, and alert fields", afternoon)
+	}
+
+	promptText := mustMarshalModuleJSON(t, output.DataPackageValue())
+	for _, field := range []string{"date", "display_name", "period_begins", "period_ends", "temp_range_f", "max_pop_percent", "max_pop_time", "mention_precipitation", "max_wind_gust_mph", "dominant_condition", "temperature_trend", "temperature_steady_phrase_f", "notable_conditions", "relevant_alert_count"} {
+		if !strings.Contains(promptText, field) {
+			t.Fatalf("daypart prompt json = %s, want field %s", promptText, field)
+		}
+	}
+	for _, field := range []string{"temperature_phrase_f", "dominant_condition_lower", "dominant_condition_display", "max_pop_time_label"} {
+		if strings.Contains(promptText, field) {
+			t.Fatalf("daypart prompt json = %s, want omitted helper field %s", promptText, field)
+		}
+	}
+}
+
+func TestDerivedDaypartPromptExportTemperatureTrends(t *testing.T) {
+	tests := []struct {
+		name       string
+		temps      []float64
+		wantTrend  string
+		wantStart  string
+		wantEnd    string
+		wantPeak   string
+		wantSteady string
+	}{
+		{
+			name:      "rising",
+			temps:     []float64{58, 68},
+			wantTrend: "rising",
+			wantStart: "upper 50s",
+			wantEnd:   "upper 60s",
+		},
+		{
+			name:      "falling",
+			temps:     []float64{65, 58},
+			wantTrend: "falling",
+			wantStart: "mid 60s",
+			wantEnd:   "upper 50s",
+		},
+		{
+			name:      "peaking",
+			temps:     []float64{62, 78, 65},
+			wantTrend: "peaking",
+			wantPeak:  "upper 70s",
+		},
+		{
+			name:       "steady",
+			temps:      []float64{77, 78},
+			wantTrend:  "steady",
+			wantSteady: "upper 70s",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			rich := derivedDaypartSummaryValue(derivedDaypartWithTemperatures(test.name, "2026-05-29T12:00:00-05:00", "sunny", test.temps...), "America/Chicago")
+			prompt := derivedDaypartSummaryPromptValue(rich)
+			if prompt.TemperatureTrend != test.wantTrend ||
+				prompt.TemperatureStartPhraseF != test.wantStart ||
+				prompt.TemperatureEndPhraseF != test.wantEnd ||
+				prompt.TemperaturePeakPhraseF != test.wantPeak ||
+				prompt.TemperatureSteadyPhraseF != test.wantSteady {
+				t.Fatalf("prompt temperature presentation = %#v", prompt)
+			}
+		})
+	}
+}
+
+func TestDerivedDaypartPromptExportMaxPopTimeFallback(t *testing.T) {
+	withLabel := derivedDaypartSummaryPromptValue(DerivedDaypartSummaryModule{
+		MaxPopTime:      "6 AM",
+		MaxPopTimeLabel: "6:00 AM",
+	})
+	if withLabel.MaxPopTime != "6:00 AM" {
+		t.Fatalf("MaxPopTime with label = %q, want friendly label", withLabel.MaxPopTime)
+	}
+
+	withoutLabel := derivedDaypartSummaryPromptValue(DerivedDaypartSummaryModule{
+		MaxPopTime: "6 AM",
+	})
+	if withoutLabel.MaxPopTime != "6 AM" {
+		t.Fatalf("MaxPopTime without label = %q, want fallback time", withoutLabel.MaxPopTime)
+	}
+}
+
+func TestDerivedDaypartTemperaturePresentationFields(t *testing.T) {
+	tests := []struct {
+		name       string
+		temps      []float64
+		wantTrend  string
+		wantStart  string
+		wantEnd    string
+		wantPeak   string
+		wantSteady string
+	}{
+		{
+			name:      "rising",
+			temps:     []float64{58, 68},
+			wantTrend: "rising",
+			wantStart: "upper 50s",
+			wantEnd:   "upper 60s",
+		},
+		{
+			name:      "falling",
+			temps:     []float64{65, 58},
+			wantTrend: "falling",
+			wantStart: "mid 60s",
+			wantEnd:   "upper 50s",
+		},
+		{
+			name:      "peaking",
+			temps:     []float64{62, 78, 65},
+			wantTrend: "peaking",
+			wantPeak:  "upper 70s",
+		},
+		{
+			name:       "steady same band",
+			temps:      []float64{77, 78},
+			wantTrend:  "steady",
+			wantSteady: "upper 70s",
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			summary := derivedDaypartWithTemperatures("afternoon", "2026-05-29T12:00:00-05:00", "sunny", test.temps...)
+			value := derivedDaypartSummaryValue(summary, "America/Chicago")
+			if value.DominantConditionDisplay != "Sunny" {
+				t.Fatalf("DominantConditionDisplay = %q, want Sunny", value.DominantConditionDisplay)
+			}
+			if value.TemperatureTrend != test.wantTrend ||
+				value.TemperatureStartPhraseF != test.wantStart ||
+				value.TemperatureEndPhraseF != test.wantEnd ||
+				value.TemperaturePeakPhraseF != test.wantPeak ||
+				value.TemperatureSteadyPhraseF != test.wantSteady {
+				t.Fatalf("temperature presentation = %#v", value)
+			}
+		})
+	}
+}
+
+func TestTemperaturePhraseF(t *testing.T) {
+	tests := []struct {
+		name  string
+		value forecast.Range
+		want  string
+	}{
+		{
+			name:  "single low band",
+			value: forecast.Range{Min: floatPtr(71), Max: floatPtr(73)},
+			want:  "low 70s",
+		},
+		{
+			name:  "single upper value",
+			value: forecast.Range{Min: floatPtr(68), Max: floatPtr(68)},
+			want:  "upper 60s",
+		},
+		{
+			name:  "range across bands",
+			value: forecast.Range{Min: floatPtr(68), Max: floatPtr(75)},
+			want:  "upper 60s to mid 70s",
+		},
+		{
+			name:  "max only",
+			value: forecast.Range{Max: floatPtr(84)},
+			want:  "mid 80s",
+		},
+		{
+			name:  "empty",
+			value: forecast.Range{},
+			want:  "",
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if got := temperaturePhraseF(test.value); got != test.want {
+				t.Fatalf("temperaturePhraseF() = %q, want %q", got, test.want)
+			}
+		})
+	}
+}
+
+func TestOutdoorWindowsAndTomorrowPlanningModulesPreserveDailyContent(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := derivedModuleContext(report.Tomorrow)
+
+	outdoorOutput, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.OutdoorWindows})
+	if err != nil {
+		t.Fatalf("BuildModule(outdoor windows) error = %v", err)
+	}
+	outdoor := moduleValue[OutdoorWindowsModule](t, outdoorOutput)
+	if outdoor.Best == nil || outdoor.Worst == nil {
+		t.Fatalf("outdoor windows = %#v, want best and worst", outdoor)
+	}
+	if outdoor.Best.Daypart != "overnight" || outdoor.Worst.Daypart != "afternoon" {
+		t.Fatalf("outdoor windows = %#v, want quiet overnight and stormy afternoon", outdoor)
+	}
+	if outdoor.Best.PeriodBegins != "2026-05-29 at 12:00 AM" || outdoor.Best.PeriodEnds != "2026-05-29 at 6:00 AM" {
+		t.Fatalf("best outdoor period = %#v, want overnight period labels", outdoor.Best)
+	}
+	if outdoor.Worst.PeriodBegins != "2026-05-29 at 12:00 PM" || outdoor.Worst.PeriodEnds != "2026-05-29 at 6:00 PM" {
+		t.Fatalf("worst outdoor period = %#v, want afternoon period labels", outdoor.Worst)
+	}
+
+	planningOutput, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.TomorrowPlanning})
+	if err != nil {
+		t.Fatalf("BuildModule(tomorrow planning) error = %v", err)
+	}
+	planning := moduleValue[TomorrowPlanningModule](t, planningOutput)
+	if len(planning.MorningReadiness) == 0 || len(planning.CommuteSchoolWorkdayConcerns) == 0 || len(planning.OvernightChangeWatch) == 0 {
+		t.Fatalf("tomorrow planning = %#v, want daily planning notes", planning)
+	}
+	data, err := json.Marshal(planningOutput.Value)
+	if err != nil {
+		t.Fatalf("marshal tomorrow planning: %v", err)
+	}
+	if !strings.Contains(string(data), "morning_readiness") || strings.Contains(string(data), "morningReadiness") {
+		t.Fatalf("tomorrow planning json = %s, want snake_case fields", string(data))
+	}
+}
+
+func TestDailyPlanningModulePackagesPlanningFields(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := dailyModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DailyPlanning})
+	if err != nil {
+		t.Fatalf("BuildModule(daily planning) error = %v", err)
+	}
+	if output.ID != module.DailyPlanning || output.StanzaName != "daily_planning" {
+		t.Fatalf("output = %#v, want daily planning stanza", output)
+	}
+	planning := moduleValue[DailyPlanningModule](t, output)
+	if len(planning.MorningReadiness) == 0 ||
+		len(planning.CommuteSchoolWorkdayConcerns) == 0 ||
+		len(planning.OvernightChangeWatch) == 0 {
+		t.Fatalf("daily planning = %#v, want populated planning fields", planning)
+	}
+	if !containsString(planning.MorningReadiness, "Morning precipitation chance peaks near 60%.") {
+		t.Fatalf("MorningReadiness = %#v, want precipitation readiness note", planning.MorningReadiness)
+	}
+	if !containsString(planning.CommuteSchoolWorkdayConcerns, "Afternoon alert overlap needs attention.") {
+		t.Fatalf("CommuteSchoolWorkdayConcerns = %#v, want alert-overlap concern", planning.CommuteSchoolWorkdayConcerns)
+	}
+	if !containsString(planning.OvernightChangeWatch, "Watch for forecast timing or intensity adjustments overnight.") {
+		t.Fatalf("OvernightChangeWatch = %#v, want overnight fallback note", planning.OvernightChangeWatch)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("marshal daily planning: %v", err)
+	}
+	jsonText := string(data)
+	for _, field := range []string{"morning_readiness", "commute_school_workday_concerns", "overnight_change_watch"} {
+		if !strings.Contains(jsonText, field) {
+			t.Fatalf("daily planning json = %s, want field %s", jsonText, field)
+		}
+	}
+	if strings.Contains(jsonText, "tomorrow_planning") || strings.Contains(jsonText, "morningReadiness") {
+		t.Fatalf("daily planning json = %s, want daily snake_case fields only", jsonText)
+	}
+}
+
+func TestDailyPlanningModuleRejectsUnsupportedReports(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	for _, id := range []report.ID{report.Today, report.Tomorrow, report.Hourly, report.ThreeDay, report.Weekend, report.Storm} {
+		t.Run(string(id), func(t *testing.T) {
+			ctx := derivedModuleContext(id)
+			_, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DailyPlanning})
+			if err == nil || !strings.Contains(err.Error(), `module "daily_planning" is not compatible with report`) {
+				t.Fatalf("BuildModule(%s) error = %v, want incompatible report", id, err)
+			}
+		})
+	}
+}
+
+func TestDailyPlanningModuleHandlesMissingDailySummary(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := dailyModuleContext()
+	ctx.Derived.DailySummaries = nil
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DailyPlanning})
+	if err != nil {
+		t.Fatalf("BuildModule(daily planning) error = %v", err)
+	}
+	planning := moduleValue[DailyPlanningModule](t, output)
+	if len(planning.MorningReadiness) != 0 ||
+		len(planning.CommuteSchoolWorkdayConcerns) != 0 ||
+		len(planning.OvernightChangeWatch) != 0 {
+		t.Fatalf("daily planning = %#v, want empty output without daily summary", planning)
+	}
+}
+
+func TestTodayPlanningModulePackagesPlanningFields(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := todayModuleContext()
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.TodayPlanning})
+	if err != nil {
+		t.Fatalf("BuildModule(today planning) error = %v", err)
+	}
+	if output.ID != module.TodayPlanning || output.StanzaName != "today_planning" {
+		t.Fatalf("output = %#v, want today planning stanza", output)
+	}
+	planning := moduleValue[TodayPlanningModule](t, output)
+	if len(planning.MorningReadiness) == 0 ||
+		len(planning.CommuteSchoolWorkdayConcerns) == 0 ||
+		len(planning.OutdoorPlanning) == 0 ||
+		len(planning.LateDayChangeWatch) == 0 {
+		t.Fatalf("today planning = %#v, want populated planning fields", planning)
+	}
+	if !containsString(planning.MorningReadiness, "Morning precipitation chance peaks near 60%.") {
+		t.Fatalf("MorningReadiness = %#v, want precipitation readiness note", planning.MorningReadiness)
+	}
+	if !containsString(planning.OutdoorPlanning, "Best outdoor window: Overnight (cold risk).") ||
+		!containsString(planning.OutdoorPlanning, "Toughest outdoor window: Afternoon (high precipitation chance, gusty wind, alert overlap, heat risk).") {
+		t.Fatalf("OutdoorPlanning = %#v, want deterministic best and toughest windows", planning.OutdoorPlanning)
+	}
+	if !containsString(planning.LateDayChangeWatch, "Afternoon precipitation timing may shift; current peak is near 80%.") {
+		t.Fatalf("LateDayChangeWatch = %#v, want late-day change note", planning.LateDayChangeWatch)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("marshal today planning: %v", err)
+	}
+	jsonText := string(data)
+	for _, field := range []string{"morning_readiness", "commute_school_workday_concerns", "outdoor_planning", "late_day_change_watch"} {
+		if !strings.Contains(jsonText, field) {
+			t.Fatalf("today planning json = %s, want field %s", jsonText, field)
+		}
+	}
+	if strings.Contains(jsonText, "morningReadiness") || strings.Contains(jsonText, "lateDayChangeWatch") {
+		t.Fatalf("today planning json = %s, want snake_case fields", jsonText)
+	}
+}
+
+func TestTodayPlanningModuleRejectsUnsupportedReports(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	for _, id := range []report.ID{report.Tomorrow, report.Daily} {
+		t.Run(string(id), func(t *testing.T) {
+			ctx := derivedModuleContext(id)
+			_, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.TodayPlanning})
+			if err == nil || !strings.Contains(err.Error(), `module "today_planning" is not compatible with report`) {
+				t.Fatalf("BuildModule(%s) error = %v, want incompatible report", id, err)
+			}
+		})
+	}
+}
+
+func TestTodayPlanningModuleHandlesMissingDailySummary(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := todayModuleContext()
+	ctx.Derived.DailySummaries = nil
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.TodayPlanning})
+	if err != nil {
+		t.Fatalf("BuildModule(today planning) error = %v", err)
+	}
+	planning := moduleValue[TodayPlanningModule](t, output)
+	if len(planning.MorningReadiness) != 0 ||
+		len(planning.CommuteSchoolWorkdayConcerns) != 0 ||
+		len(planning.OutdoorPlanning) != 0 ||
+		len(planning.LateDayChangeWatch) != 0 {
+		t.Fatalf("today planning = %#v, want empty output without daily summary", planning)
+	}
+}
+
+func TestDerivedModulesHandleMissingData(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := derivedModuleContext(report.Daily)
+	ctx.Derived.DailySummaries = nil
+	ctx.Derived.DaypartSummaries = nil
+
+	if _, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DerivedDailySummary}); err == nil {
+		t.Fatal("BuildModule(derived daily summary) error = nil, want required facts error")
+	}
+	if _, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.DerivedDaypartSummaries}); err == nil {
+		t.Fatal("BuildModule(daypart summaries) error = nil, want required facts error")
+	}
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.OutdoorWindows})
+	if err != nil {
+		t.Fatalf("BuildModule(outdoor windows) error = %v", err)
+	}
+	windows := moduleValue[OutdoorWindowsModule](t, output)
+	if windows.Best != nil || windows.Worst != nil {
+		t.Fatalf("outdoor windows = %#v, want empty output with missing dayparts", windows)
+	}
+}
+
+func derivedModuleContext(id report.ID) ModuleContext {
+	generatedAt := mustParseModuleTime("2026-05-29T08:00:00-05:00")
+	definition := report.DefaultRegistry().MustLookup(id)
+	summary := forecast.DailySummary{
+		Date: "2026-05-29",
+		Period: timeutil.Period{
+			Start: mustParseModuleTime("2026-05-29T00:00:00-05:00"),
+			End:   mustParseModuleTime("2026-05-30T00:00:00-05:00"),
+		},
+		Dayparts: []forecast.DaypartSummary{
+			derivedDaypart("overnight", "2026-05-29T00:00:00-05:00", "2026-05-29T06:00:00-05:00", "Clear and cold", 31, nil, 0, 5),
+			derivedDaypart("morning", "2026-05-29T06:00:00-05:00", "2026-05-29T12:00:00-05:00", "Showers", 58, nil, 60, 15),
+			derivedDaypart("afternoon", "2026-05-29T12:00:00-05:00", "2026-05-29T18:00:00-05:00", "Thunderstorms with gusty wind", 96, floatPtr(101), 80, 42),
+		},
+	}
+	hours := []weatherdata.ForecastPeriod{
+		derivedHour("2026-05-29T00:00:00-05:00", "Clear and cold", 0, 31, nil, 5),
+		derivedHour("2026-05-29T08:00:00-05:00", "Showers", 60, 58, nil, 15),
+		derivedHour("2026-05-29T09:00:00-05:00", "Dry break", 20, 62, nil, 10),
+		derivedHour("2026-05-29T12:00:00-05:00", "Thunderstorms with gusty wind", 80, 96, floatPtr(101), 42),
+		derivedHour("2026-05-29T13:00:00-05:00", "Heavy rain", 70, 82, nil, 30),
+		derivedHour("2026-05-29T14:00:00-05:00", "Drying out", 20, 78, nil, 12),
+	}
+	narrative := []weatherdata.ForecastPeriod{
+		{
+			Name:                              "Today",
+			StartTime:                         mustParseModuleTime("2026-05-29T06:00:00-05:00"),
+			EndTime:                           mustParseModuleTime("2026-05-29T18:00:00-05:00"),
+			IsDay:                             boolPtr(true),
+			TextDescription:                   "Morning storms, then partly sunny.",
+			TemperatureFMax:                   floatPtr(88),
+			ProbabilityOfPrecipitationPercent: floatPtr(55),
+		},
+		{
+			Name:                              "Tonight",
+			StartTime:                         mustParseModuleTime("2026-05-29T18:00:00-05:00"),
+			EndTime:                           mustParseModuleTime("2026-05-30T00:00:00-05:00"),
+			IsDay:                             boolPtr(false),
+			TextDescription:                   "Clouds linger tonight.",
+			TemperatureFMin:                   floatPtr(64),
+			ProbabilityOfPrecipitationPercent: floatPtr(30),
+		},
+	}
+	summary.Dayparts[2].AlertOverlaps = []forecast.AlertOverlap{{Event: "Severe Thunderstorm Watch"}}
+	summary.NarrativePeriods = append([]weatherdata.ForecastPeriod(nil), narrative...)
+	return ModuleContext{
+		Resolved: report.Resolved{
+			Definition:  definition,
+			GeneratedAt: generatedAt,
+			Timezone:    "America/Chicago",
+			ValidPeriod: summary.Period,
+		},
+		Collected: facts.CollectedFacts{
+			Narrative: &weatherdata.ForecastRun{
+				IssuedAt: mustParseModuleTime("2026-05-29T10:30:00-05:00"),
+				Product:  "narrative",
+				Periods:  append([]weatherdata.ForecastPeriod(nil), narrative...),
+			},
+		},
+		Derived: facts.DerivedFacts{
+			ValidPeriodHourlyPeriods:    hours,
+			ValidPeriodNarrativePeriods: narrative,
+			DailySummaries:              []forecast.DailySummary{summary},
+			DaypartSummaries:            append([]forecast.DaypartSummary(nil), summary.Dayparts...),
+			PrecipTiming:                forecast.BuildPrecipTiming(hours),
+		},
+		Units:    "us",
+		Timezone: "America/Chicago",
+	}
+}
+
+func todayModuleContext() ModuleContext {
+	ctx := derivedModuleContext(report.Daily)
+	ctx.Resolved.Definition = report.Definition{
+		ID:       report.Today,
+		Name:     "Today Report",
+		PromptID: "weather.today_generated_text",
+	}
+	return ctx
+}
+
+func dailyModuleContext() ModuleContext {
+	ctx := derivedModuleContext(report.Tomorrow)
+	ctx.Resolved.Definition = report.Definition{
+		ID:       report.Daily,
+		Name:     "Daily Report",
+		PromptID: "weather.daily_generated_text",
+	}
+	return ctx
+}
+
+func derivedDaypart(name string, start string, end string, text string, temperature float64, apparent *float64, precip float64, gust float64) forecast.DaypartSummary {
+	hour := derivedHour(start, text, precip, temperature, apparent, gust)
+	return forecast.SummarizeDaypart(name, timeutil.Period{
+		Start: mustParseModuleTime(start),
+		End:   mustParseModuleTime(end),
+	}, []weatherdata.ForecastPeriod{hour})
+}
+
+func derivedDaypartWithTemperatures(name string, start string, text string, temperatures ...float64) forecast.DaypartSummary {
+	startTime := mustParseModuleTime(start)
+	periods := make([]weatherdata.ForecastPeriod, 0, len(temperatures))
+	for index, temperature := range temperatures {
+		periodStart := startTime.Add(time.Duration(index) * time.Hour)
+		periods = append(periods, weatherdata.ForecastPeriod{
+			StartTime:       periodStart,
+			EndTime:         periodStart.Add(time.Hour),
+			TextDescription: text,
+			TemperatureF:    floatPtr(temperature),
+		})
+	}
+	return forecast.SummarizeDaypart(name, timeutil.Period{
+		Start: startTime,
+		End:   startTime.Add(time.Duration(len(temperatures)) * time.Hour),
+	}, periods)
+}
+
+func derivedHour(start string, text string, precip float64, temperature float64, apparent *float64, gust float64) weatherdata.ForecastPeriod {
+	startTime := mustParseModuleTime(start)
+	endTime := startTime.Add(time.Hour)
+	return weatherdata.ForecastPeriod{
+		StartTime:                         startTime,
+		EndTime:                           endTime,
+		TextDescription:                   text,
+		TemperatureF:                      floatPtr(temperature),
+		ApparentTemperatureF:              apparent,
+		ProbabilityOfPrecipitationPercent: floatPtr(precip),
+		WindGustMph:                       floatPtr(gust),
+	}
+}
+
+func floatPtr(value float64) *float64 {
+	return &value
+}
+
+func boolPtr(value bool) *bool {
+	return &value
+}
+
+func containsString(values []string, want string) bool {
+	for _, value := range values {
+		if value == want {
+			return true
+		}
+	}
+	return false
+}

internal/briefing/hourly_forecast_module.go

@@ -0,0 +1,247 @@
+package briefing
+
+import (
+	"strings"
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+const DefaultHourlyForecastPrecipMentionProbabilityThreshold = 20
+
+type HourlyForecastModule struct {
+	Product          string                 `json:"product,omitempty"`
+	IssuedAt         time.Time              `json:"issued_at,omitempty"`
+	UpdatedAt        *time.Time             `json:"updated_at,omitempty"`
+	SourceLocation   string                 `json:"source_location,omitempty"`
+	SourceLocationID string                 `json:"source_location_id,omitempty"`
+	Periods          []HourlyForecastPeriod `json:"periods,omitempty"`
+}
+
+type HourlyForecastPromptExport struct {
+	Product          string                       `json:"product,omitempty"`
+	IssuedAt         time.Time                    `json:"issued_at,omitempty"`
+	UpdatedAt        *time.Time                   `json:"updated_at,omitempty"`
+	SourceLocation   string                       `json:"source_location,omitempty"`
+	SourceLocationID string                       `json:"source_location_id,omitempty"`
+	Periods          []HourlyForecastPromptPeriod `json:"periods,omitempty"`
+}
+
+type HourlyForecastPeriod struct {
+	HourLabel                         string   `json:"hour_label,omitempty"`
+	PeriodBegins                      string   `json:"period_begins,omitempty"`
+	PeriodEnds                        string   `json:"period_ends,omitempty"`
+	Name                              string   `json:"name,omitempty"`
+	IsDay                             *bool    `json:"is_day,omitempty"`
+	ConditionCode                     *int     `json:"condition_code,omitempty"`
+	TextDescription                   string   `json:"text_description,omitempty"`
+	TextDescriptionLower              string   `json:"text_description_lower,omitempty"`
+	TemperatureC                      *float64 `json:"temperature_c,omitempty"`
+	TemperatureF                      *float64 `json:"temperature_f,omitempty"`
+	TemperatureCMin                   *float64 `json:"temperature_c_min,omitempty"`
+	TemperatureFMin                   *float64 `json:"temperature_f_min,omitempty"`
+	TemperatureCMax                   *float64 `json:"temperature_c_max,omitempty"`
+	TemperatureFMax                   *float64 `json:"temperature_f_max,omitempty"`
+	DewpointC                         *float64 `json:"dewpoint_c,omitempty"`
+	DewpointF                         *float64 `json:"dewpoint_f,omitempty"`
+	WindSpeedKmh                      *float64 `json:"wind_speed_kmh,omitempty"`
+	WindSpeedMph                      *float64 `json:"wind_speed_mph,omitempty"`
+	WindGustKmh                       *float64 `json:"wind_gust_kmh,omitempty"`
+	WindGustMph                       *float64 `json:"wind_gust_mph,omitempty"`
+	WindDirection                     string   `json:"wind_direction,omitempty"`
+	BarometricPressurePa              *float64 `json:"barometric_pressure_pa,omitempty"`
+	BarometricPressureInHg            *float64 `json:"barometric_pressure_in_hg,omitempty"`
+	VisibilityMeters                  *float64 `json:"visibility_meters,omitempty"`
+	VisibilityMiles                   *float64 `json:"visibility_miles,omitempty"`
+	ApparentTemperatureC              *float64 `json:"apparent_temperature_c,omitempty"`
+	ApparentTemperatureF              *float64 `json:"apparent_temperature_f,omitempty"`
+	CloudCoverPercent                 *float64 `json:"cloud_cover_percent,omitempty"`
+	ProbabilityOfPrecipitationPercent *float64 `json:"probability_of_precipitation_percent,omitempty"`
+	MentionPrecipitation              bool     `json:"mention_precipitation,omitempty"`
+	PrecipitationAmountMm             *float64 `json:"precipitation_amount_mm,omitempty"`
+	PrecipitationAmountIn             *float64 `json:"precipitation_amount_in,omitempty"`
+	SnowfallDepthMM                   *float64 `json:"snowfall_depth_mm,omitempty"`
+	SnowfallDepthIn                   *float64 `json:"snowfall_depth_in,omitempty"`
+	UVIndex                           *float64 `json:"uv_index,omitempty"`
+	RelativeHumidityPercent           *float64 `json:"relative_humidity_percent,omitempty"`
+}
+
+type HourlyForecastPromptPeriod struct {
+	PeriodBegins                      string   `json:"period_begins,omitempty"`
+	PeriodEnds                        string   `json:"period_ends,omitempty"`
+	Name                              string   `json:"name,omitempty"`
+	IsDay                             *bool    `json:"is_day,omitempty"`
+	ConditionCode                     *int     `json:"condition_code,omitempty"`
+	TextDescription                   string   `json:"text_description,omitempty"`
+	TemperatureC                      *float64 `json:"temperature_c,omitempty"`
+	TemperatureF                      *float64 `json:"temperature_f,omitempty"`
+	TemperatureCMin                   *float64 `json:"temperature_c_min,omitempty"`
+	TemperatureFMin                   *float64 `json:"temperature_f_min,omitempty"`
+	TemperatureCMax                   *float64 `json:"temperature_c_max,omitempty"`
+	TemperatureFMax                   *float64 `json:"temperature_f_max,omitempty"`
+	DewpointC                         *float64 `json:"dewpoint_c,omitempty"`
+	DewpointF                         *float64 `json:"dewpoint_f,omitempty"`
+	WindSpeedKmh                      *float64 `json:"wind_speed_kmh,omitempty"`
+	WindSpeedMph                      *float64 `json:"wind_speed_mph,omitempty"`
+	WindGustKmh                       *float64 `json:"wind_gust_kmh,omitempty"`
+	WindGustMph                       *float64 `json:"wind_gust_mph,omitempty"`
+	WindDirection                     string   `json:"wind_direction,omitempty"`
+	BarometricPressurePa              *float64 `json:"barometric_pressure_pa,omitempty"`
+	BarometricPressureInHg            *float64 `json:"barometric_pressure_in_hg,omitempty"`
+	VisibilityMeters                  *float64 `json:"visibility_meters,omitempty"`
+	VisibilityMiles                   *float64 `json:"visibility_miles,omitempty"`
+	ApparentTemperatureC              *float64 `json:"apparent_temperature_c,omitempty"`
+	ApparentTemperatureF              *float64 `json:"apparent_temperature_f,omitempty"`
+	CloudCoverPercent                 *float64 `json:"cloud_cover_percent,omitempty"`
+	ProbabilityOfPrecipitationPercent *float64 `json:"probability_of_precipitation_percent,omitempty"`
+	PrecipitationAmountMm             *float64 `json:"precipitation_amount_mm,omitempty"`
+	PrecipitationAmountIn             *float64 `json:"precipitation_amount_in,omitempty"`
+	SnowfallDepthMM                   *float64 `json:"snowfall_depth_mm,omitempty"`
+	SnowfallDepthIn                   *float64 `json:"snowfall_depth_in,omitempty"`
+	UVIndex                           *float64 `json:"uv_index,omitempty"`
+	RelativeHumidityPercent           *float64 `json:"relative_humidity_percent,omitempty"`
+}
+
+func buildHourlyForecastModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	hourly := ctx.Collected.Hourly
+	if hourly == nil || len(ctx.Derived.ValidPeriodHourlyPeriods) == 0 {
+		return nil, nil
+	}
+	value := HourlyForecastModule{
+		Product:          hourly.Product,
+		IssuedAt:         hourly.IssuedAt,
+		UpdatedAt:        copyTime(hourly.UpdatedAt),
+		SourceLocation:   hourly.LocationName,
+		SourceLocationID: hourly.LocationID,
+		Periods:          hourlyForecastPeriods(ctx.Derived.ValidPeriodHourlyPeriods, ctx.Timezone),
+	}
+	if value.isEmpty() {
+		return nil, nil
+	}
+	return &module.Output{ID: module.HourlyForecast, StanzaName: "hourly_forecast", Value: value}, nil
+}
+
+func exportHourlyForecastPromptValue(value any) (any, error) {
+	rich, ok := value.(HourlyForecastModule)
+	if !ok {
+		return nil, unexpectedPromptExportValue(value, HourlyForecastModule{})
+	}
+	return HourlyForecastPromptExport{
+		Product:          rich.Product,
+		IssuedAt:         rich.IssuedAt,
+		UpdatedAt:        copyTime(rich.UpdatedAt),
+		SourceLocation:   rich.SourceLocation,
+		SourceLocationID: rich.SourceLocationID,
+		Periods:          hourlyForecastPromptPeriods(rich.Periods),
+	}, nil
+}
+
+func hourlyForecastPromptPeriods(periods []HourlyForecastPeriod) []HourlyForecastPromptPeriod {
+	if len(periods) == 0 {
+		return nil
+	}
+	out := make([]HourlyForecastPromptPeriod, 0, len(periods))
+	for _, period := range periods {
+		out = append(out, HourlyForecastPromptPeriod{
+			PeriodBegins:                      period.PeriodBegins,
+			PeriodEnds:                        period.PeriodEnds,
+			Name:                              period.Name,
+			IsDay:                             copyBool(period.IsDay),
+			ConditionCode:                     copyInt(period.ConditionCode),
+			TextDescription:                   period.TextDescription,
+			TemperatureC:                      copyFloat(period.TemperatureC),
+			TemperatureF:                      copyFloat(period.TemperatureF),
+			TemperatureCMin:                   copyFloat(period.TemperatureCMin),
+			TemperatureFMin:                   copyFloat(period.TemperatureFMin),
+			TemperatureCMax:                   copyFloat(period.TemperatureCMax),
+			TemperatureFMax:                   copyFloat(period.TemperatureFMax),
+			DewpointC:                         copyFloat(period.DewpointC),
+			DewpointF:                         copyFloat(period.DewpointF),
+			WindSpeedKmh:                      copyFloat(period.WindSpeedKmh),
+			WindSpeedMph:                      copyFloat(period.WindSpeedMph),
+			WindGustKmh:                       copyFloat(period.WindGustKmh),
+			WindGustMph:                       copyFloat(period.WindGustMph),
+			WindDirection:                     period.WindDirection,
+			BarometricPressurePa:              copyFloat(period.BarometricPressurePa),
+			BarometricPressureInHg:            copyFloat(period.BarometricPressureInHg),
+			VisibilityMeters:                  copyFloat(period.VisibilityMeters),
+			VisibilityMiles:                   copyFloat(period.VisibilityMiles),
+			ApparentTemperatureC:              copyFloat(period.ApparentTemperatureC),
+			ApparentTemperatureF:              copyFloat(period.ApparentTemperatureF),
+			CloudCoverPercent:                 copyFloat(period.CloudCoverPercent),
+			ProbabilityOfPrecipitationPercent: copyFloat(period.ProbabilityOfPrecipitationPercent),
+			PrecipitationAmountMm:             copyFloat(period.PrecipitationAmountMm),
+			PrecipitationAmountIn:             copyFloat(period.PrecipitationAmountIn),
+			SnowfallDepthMM:                   copyFloat(period.SnowfallDepthMM),
+			SnowfallDepthIn:                   copyFloat(period.SnowfallDepthIn),
+			UVIndex:                           copyFloat(period.UVIndex),
+			RelativeHumidityPercent:           copyFloat(period.RelativeHumidityPercent),
+		})
+	}
+	return out
+}
+
+func hourlyForecastPeriods(periods []weatherdata.ForecastPeriod, timezone string) []HourlyForecastPeriod {
+	return hourlyForecastPeriodsWithPrecipMentionThreshold(periods, timezone, DefaultHourlyForecastPrecipMentionProbabilityThreshold)
+}
+
+func hourlyForecastPeriodsWithPrecipMentionThreshold(periods []weatherdata.ForecastPeriod, timezone string, threshold float64) []HourlyForecastPeriod {
+	out := make([]HourlyForecastPeriod, 0, len(periods))
+	for _, period := range periods {
+		validPeriod := timeutil.Period{Start: period.StartTime, End: period.EndTime}
+		out = append(out, HourlyForecastPeriod{
+			HourLabel:                         hourMinuteLabel(period.StartTime, timezone),
+			PeriodBegins:                      friendlyPeriodBeginsLabel(validPeriod, timezone),
+			PeriodEnds:                        friendlyPeriodEndsLabel(validPeriod, timezone),
+			Name:                              period.Name,
+			IsDay:                             copyBool(period.IsDay),
+			ConditionCode:                     copyInt(period.ConditionCode),
+			TextDescription:                   period.TextDescription,
+			TextDescriptionLower:              strings.ToLower(period.TextDescription),
+			TemperatureC:                      copyFloat(period.TemperatureC),
+			TemperatureF:                      copyFloat(period.TemperatureF),
+			TemperatureCMin:                   copyFloat(period.TemperatureCMin),
+			TemperatureFMin:                   copyFloat(period.TemperatureFMin),
+			TemperatureCMax:                   copyFloat(period.TemperatureCMax),
+			TemperatureFMax:                   copyFloat(period.TemperatureFMax),
+			DewpointC:                         copyFloat(period.DewpointC),
+			DewpointF:                         copyFloat(period.DewpointF),
+			WindSpeedKmh:                      copyFloat(period.WindSpeedKmh),
+			WindSpeedMph:                      copyFloat(period.WindSpeedMph),
+			WindGustKmh:                       copyFloat(period.WindGustKmh),
+			WindGustMph:                       copyFloat(period.WindGustMph),
+			WindDirection:                     windDirectionLabel(period.WindDirectionDegrees),
+			BarometricPressurePa:              copyFloat(period.BarometricPressurePa),
+			BarometricPressureInHg:            copyFloat(period.BarometricPressureInHg),
+			VisibilityMeters:                  copyFloat(period.VisibilityMeters),
+			VisibilityMiles:                   copyFloat(period.VisibilityMiles),
+			ApparentTemperatureC:              copyFloat(period.ApparentTemperatureC),
+			ApparentTemperatureF:              copyFloat(period.ApparentTemperatureF),
+			CloudCoverPercent:                 copyFloat(period.CloudCoverPercent),
+			ProbabilityOfPrecipitationPercent: copyFloat(period.ProbabilityOfPrecipitationPercent),
+			MentionPrecipitation:              mentionHourlyForecastPrecipitation(period.ProbabilityOfPrecipitationPercent, threshold),
+			PrecipitationAmountMm:             copyFloat(period.PrecipitationAmountMm),
+			PrecipitationAmountIn:             copyFloat(period.PrecipitationAmountIn),
+			SnowfallDepthMM:                   copyFloat(period.SnowfallDepthMM),
+			SnowfallDepthIn:                   copyFloat(period.SnowfallDepthIn),
+			UVIndex:                           copyFloat(period.UVIndex),
+			RelativeHumidityPercent:           copyFloat(period.RelativeHumidityPercent),
+		})
+	}
+	return out
+}
+
+func mentionHourlyForecastPrecipitation(probability *float64, threshold float64) bool {
+	return probability != nil && *probability >= threshold
+}
+
+func (v HourlyForecastModule) isEmpty() bool {
+	return v.Product == "" &&
+		v.IssuedAt.IsZero() &&
+		v.UpdatedAt == nil &&
+		v.SourceLocation == "" &&
+		v.SourceLocationID == "" &&
+		len(v.Periods) == 0
+}

internal/briefing/metadata_module.go

@@ -0,0 +1,64 @@
+package briefing
+
+import (
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+type MetadataModule struct {
+	RunID          string                 `json:"run_id"`
+	ReportID       report.ID              `json:"report_id"`
+	Variant        string                 `json:"variant,omitempty"`
+	PromptID       string                 `json:"prompt_id"`
+	GeneratedAt    time.Time              `json:"generated_at"`
+	Units          string                 `json:"units"`
+	Timezone       string                 `json:"timezone"`
+	ValidPeriod    timeutil.Period        `json:"valid_period"`
+	Location       *LocationContext       `json:"location,omitempty"`
+	SourceWarnings []SourceWarningSummary `json:"source_warnings,omitempty"`
+	Alerts         *AlertDigestModule     `json:"alerts,omitempty"`
+}
+
+type SourceWarningSummary struct {
+	Source             string `json:"source"`
+	Code               string `json:"code"`
+	Severity           string `json:"severity"`
+	Message            string `json:"message"`
+	CompletenessImpact string `json:"completeness_impact,omitempty"`
+}
+
+func buildMetadataModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	metadata := ctx.Resolved.Metadata()
+	value := MetadataModule{
+		RunID:          metadata.RunID,
+		ReportID:       metadata.ReportID,
+		Variant:        variantForReport(metadata.ReportID),
+		PromptID:       metadata.PromptID,
+		GeneratedAt:    metadata.GeneratedAt,
+		Units:          ctx.Units,
+		Timezone:       ctx.Timezone,
+		ValidPeriod:    metadata.ValidPeriod,
+		Location:       copyLocation(ctx.Location),
+		SourceWarnings: sourceWarningSummaries(ctx.Collected.SourceWarnings),
+		Alerts:         alertDigest(ctx.Collected, ctx.Derived.AlertOverlaps),
+	}
+	return &module.Output{ID: module.Metadata, StanzaName: "metadata", Value: value}, nil
+}
+
+func sourceWarningSummaries(warnings []weatherdata.SourceWarning) []SourceWarningSummary {
+	out := make([]SourceWarningSummary, 0, len(warnings))
+	for _, warning := range warnings {
+		out = append(out, SourceWarningSummary{
+			Source:             warning.Source,
+			Code:               warning.Code,
+			Severity:           warning.Severity,
+			Message:            warning.Message,
+			CompletenessImpact: warning.CompletenessImpact,
+		})
+	}
+	return out
+}

internal/briefing/module_format_helpers.go

@@ -0,0 +1,166 @@
+package briefing
+
+import (
+	"fmt"
+	"math"
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+)
+
+func rangeLabel(value forecast.Range) string {
+	if value.Min == nil && value.Max == nil {
+		return ""
+	}
+	if value.Min != nil && value.Max != nil {
+		low := roundedInt(value.Min)
+		high := roundedInt(value.Max)
+		if low != nil && high != nil && *low == *high {
+			return fmt.Sprintf("%d", *low)
+		}
+		return fmt.Sprintf("%d-%d", *low, *high)
+	}
+	if value.Min != nil {
+		low := roundedInt(value.Min)
+		return fmt.Sprintf("%d", *low)
+	}
+	high := roundedInt(value.Max)
+	return fmt.Sprintf("%d", *high)
+}
+
+func daypartApparentRangeLabel(value forecast.Range) string {
+	if value.Min == nil && value.Max == nil {
+		return ""
+	}
+	return rangeLabel(value)
+}
+
+func roundedInt(value *float64) *int {
+	if value == nil {
+		return nil
+	}
+	rounded := int(*value + 0.5)
+	if *value < 0 {
+		rounded = int(*value - 0.5)
+	}
+	return &rounded
+}
+
+func windDirectionLabel(degrees *float64) string {
+	if degrees == nil {
+		return ""
+	}
+	labels := []string{"N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE", "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW"}
+	normalized := math.Mod(*degrees, 360)
+	if normalized < 0 {
+		normalized += 360
+	}
+	sector := int(math.Floor((normalized+11.25)/22.5)) % len(labels)
+	return labels[sector]
+}
+
+func windDirectionTextLabel(degrees *float64) string {
+	if degrees == nil {
+		return ""
+	}
+	labels := []string{
+		"north",
+		"north-northeast",
+		"northeast",
+		"east-northeast",
+		"east",
+		"east-southeast",
+		"southeast",
+		"south-southeast",
+		"south",
+		"south-southwest",
+		"southwest",
+		"west-southwest",
+		"west",
+		"west-northwest",
+		"northwest",
+		"north-northwest",
+	}
+	normalized := math.Mod(*degrees, 360)
+	if normalized < 0 {
+		normalized += 360
+	}
+	sector := int(math.Floor((normalized+11.25)/22.5)) % len(labels)
+	return labels[sector]
+}
+
+func timedClockLabel(value *forecast.TimedValue, timezone string) string {
+	if value == nil {
+		return ""
+	}
+	return clockLabel(value.Time, timezone)
+}
+
+func friendlyPeriodBeginsLabel(period timeutil.Period, timezone string) string {
+	if !period.IsValid() {
+		return ""
+	}
+	return friendlyDateTimeLabel(period.Start, timezone)
+}
+
+func friendlyPeriodEndsLabel(period timeutil.Period, timezone string) string {
+	if !period.IsValid() {
+		return ""
+	}
+	return friendlyDateTimeLabel(period.End, timezone)
+}
+
+func friendlyDateTimeLabel(value time.Time, timezone string) string {
+	if value.IsZero() {
+		return ""
+	}
+	location, err := timeutil.LoadLocation(timezone)
+	if err != nil {
+		location = time.UTC
+	}
+	return value.In(location).Format("2006-01-02 at 3:04 PM")
+}
+
+func friendlyDateLabel(date string, timezone string) string {
+	location, err := timeutil.LoadLocation(timezone)
+	if err != nil {
+		location = time.UTC
+	}
+	parsed, err := time.ParseInLocation(timeutil.DateLayout, date, location)
+	if err != nil {
+		return date
+	}
+	return parsed.Format("Monday, January 2, 2006")
+}
+
+func localDateLabel(value time.Time, timezone string) string {
+	if value.IsZero() {
+		return ""
+	}
+	location, err := timeutil.LoadLocation(timezone)
+	if err != nil {
+		location = time.UTC
+	}
+	return value.In(location).Format(timeutil.DateLayout)
+}
+
+func clockLabel(value time.Time, timezone string) string {
+	location, err := timeutil.LoadLocation(timezone)
+	if err != nil {
+		location = time.UTC
+	}
+	label := value.In(location).Format("3 PM")
+	if label == "12 AM" && value.In(location).Minute() == 0 {
+		return "12 AM"
+	}
+	return label
+}
+
+func hourMinuteLabel(value time.Time, timezone string) string {
+	location, err := timeutil.LoadLocation(timezone)
+	if err != nil {
+		location = time.UTC
+	}
+	return value.In(location).Format("3:04 PM")
+}

internal/briefing/module_format_helpers_test.go

@@ -0,0 +1,51 @@
+package briefing
+
+import "testing"
+
+func TestWindDirectionLabelUsesSixteenPointCompass(t *testing.T) {
+	tests := []struct {
+		name    string
+		degrees *float64
+		want    string
+	}{
+		{name: "nil", degrees: nil, want: ""},
+		{name: "north", degrees: floatPtr(0), want: "N"},
+		{name: "below first boundary", degrees: floatPtr(11.24), want: "N"},
+		{name: "at first boundary", degrees: floatPtr(11.25), want: "NNE"},
+		{name: "northeast", degrees: floatPtr(45), want: "NE"},
+		{name: "south", degrees: floatPtr(180), want: "S"},
+		{name: "wrap to north", degrees: floatPtr(348.75), want: "N"},
+		{name: "full rotation", degrees: floatPtr(360), want: "N"},
+		{name: "negative normalizes", degrees: floatPtr(-45), want: "NW"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := windDirectionLabel(tt.degrees); got != tt.want {
+				t.Fatalf("windDirectionLabel(%v) = %q, want %q", tt.degrees, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestWindDirectionTextLabelUsesLowercaseCompassText(t *testing.T) {
+	tests := []struct {
+		name    string
+		degrees *float64
+		want    string
+	}{
+		{name: "nil", degrees: nil, want: ""},
+		{name: "north", degrees: floatPtr(0), want: "north"},
+		{name: "north northeast", degrees: floatPtr(11.25), want: "north-northeast"},
+		{name: "northwest", degrees: floatPtr(315), want: "northwest"},
+		{name: "negative normalizes", degrees: floatPtr(-45), want: "northwest"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := windDirectionTextLabel(tt.degrees); got != tt.want {
+				t.Fatalf("windDirectionTextLabel(%v) = %q, want %q", tt.degrees, got, tt.want)
+			}
+		})
+	}
+}

internal/briefing/modules.go

@@ -0,0 +1,424 @@
+package briefing
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/facts"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+)
+
+type ModuleContext struct {
+	Resolved  report.Resolved
+	Collected facts.CollectedFacts
+	Derived   facts.DerivedFacts
+	Units     string
+	Timezone  string
+	Location  *LocationContext
+}
+
+type ModuleBuilder func(ModuleContext, any) (*module.Output, error)
+
+type ModulePromptExporter func(value any) (any, error)
+
+type ModuleDefinition struct {
+	ID                module.ID
+	StanzaName        string
+	DefaultOptions    any
+	RequiredCollected []module.FactRequirement
+	RequiredDerived   []module.FactRequirement
+	SupportedReports  []report.ID
+	MissingData       module.MissingDataBehavior
+	AllowDuplicate    bool
+	Builder           ModuleBuilder
+	PromptExporter    ModulePromptExporter
+}
+
+type ModuleRegistry struct {
+	definitions map[module.ID]ModuleDefinition
+}
+
+func unexpectedPromptExportValue(got any, want any) error {
+	return fmt.Errorf("value has type %T, want %T", got, want)
+}
+
+func DefaultModuleRegistry() (ModuleRegistry, error) {
+	return NewModuleRegistry(defaultModuleDefinitions())
+}
+
+func MustDefaultModuleRegistry() ModuleRegistry {
+	registry, err := DefaultModuleRegistry()
+	if err != nil {
+		panic(err)
+	}
+	return registry
+}
+
+func NewModuleRegistry(definitions []ModuleDefinition) (ModuleRegistry, error) {
+	registry := ModuleRegistry{definitions: map[module.ID]ModuleDefinition{}}
+	seenStanzas := map[string]module.ID{}
+	for i, definition := range definitions {
+		if definition.ID == "" {
+			return ModuleRegistry{}, fmt.Errorf("module definition[%d].id is required", i)
+		}
+		if definition.StanzaName == "" {
+			return ModuleRegistry{}, fmt.Errorf("module %q stanza name is required", definition.ID)
+		}
+		if _, ok := registry.definitions[definition.ID]; ok {
+			return ModuleRegistry{}, fmt.Errorf("duplicate module definition %q", definition.ID)
+		}
+		if definition.Builder == nil {
+			return ModuleRegistry{}, fmt.Errorf("module %q has no builder", definition.ID)
+		}
+		if definition.MissingData == module.MissingDataWarn {
+			return ModuleRegistry{}, fmt.Errorf("module %q uses unsupported missing data behavior %q", definition.ID, definition.MissingData)
+		}
+		if existingID, ok := seenStanzas[definition.StanzaName]; ok {
+			return ModuleRegistry{}, fmt.Errorf("duplicate stanza name %q for modules %q and %q", definition.StanzaName, existingID, definition.ID)
+		}
+		seenStanzas[definition.StanzaName] = definition.ID
+		registry.definitions[definition.ID] = definition
+	}
+	return registry, nil
+}
+
+func (r ModuleRegistry) Lookup(id module.ID) (ModuleDefinition, error) {
+	definition, ok := r.definitions[id]
+	if !ok {
+		return ModuleDefinition{}, fmt.Errorf("unknown module %q", id)
+	}
+	return definition, nil
+}
+
+func (r ModuleRegistry) BuildModule(ctx ModuleContext, item module.ConfigItem) (*module.Output, error) {
+	definition, err := r.Lookup(item.ID)
+	if err != nil {
+		return nil, err
+	}
+	if !definition.SupportsReport(ctx.Resolved.Definition.ID) {
+		return nil, fmt.Errorf("module %q is not compatible with report %q", item.ID, ctx.Resolved.Definition.ID)
+	}
+	if err := definition.ValidateOptions(item.Options); err != nil {
+		return nil, err
+	}
+	if definition.Builder == nil {
+		return nil, fmt.Errorf("module %q has no builder", item.ID)
+	}
+	missing := missingRequirements(definition, ctx)
+	if len(missing) > 0 {
+		switch definition.MissingData {
+		case module.MissingDataOmit:
+			return nil, nil
+		case module.MissingDataError:
+			return nil, fmt.Errorf("module %q missing required facts: %s", item.ID, strings.Join(missing, ", "))
+		case module.MissingDataEmpty:
+		case module.MissingDataWarn:
+			return nil, fmt.Errorf("module %q uses unsupported missing data behavior %q", item.ID, definition.MissingData)
+		default:
+			return nil, fmt.Errorf("module %q has unknown missing data behavior %q", item.ID, definition.MissingData)
+		}
+	}
+	options := item.Options
+	if options == nil {
+		options = definition.DefaultOptions
+	}
+	output, err := definition.Builder(ctx, options)
+	if err != nil {
+		return nil, err
+	}
+	if output == nil {
+		return nil, nil
+	}
+	if output.ID != definition.ID {
+		return nil, fmt.Errorf("module %q produced output id %q", definition.ID, output.ID)
+	}
+	if output.StanzaName != definition.StanzaName {
+		return nil, fmt.Errorf("module %q produced stanza %q, want %q", definition.ID, output.StanzaName, definition.StanzaName)
+	}
+	if definition.PromptExporter == nil {
+		output.PromptValue = output.Value
+		return output, nil
+	}
+	promptValue, err := definition.PromptExporter(output.Value)
+	if err != nil {
+		return nil, fmt.Errorf("module %q stanza %q prompt export: %w", definition.ID, definition.StanzaName, err)
+	}
+	output.PromptValue = promptValue
+	return output, nil
+}
+
+func missingRequirements(definition ModuleDefinition, ctx ModuleContext) []string {
+	var missing []string
+	for _, requirement := range definition.RequiredCollected {
+		if !collectedFactAvailable(requirement, ctx) {
+			missing = append(missing, string(requirement))
+		}
+	}
+	for _, requirement := range definition.RequiredDerived {
+		if !derivedFactAvailable(requirement, ctx) {
+			missing = append(missing, string(requirement))
+		}
+	}
+	return missing
+}
+
+func collectedFactAvailable(requirement module.FactRequirement, ctx ModuleContext) bool {
+	switch requirement {
+	case module.CollectedCurrentConditions:
+		return ctx.Collected.Current != nil
+	case module.CollectedNarrativeForecast:
+		return ctx.Collected.Narrative != nil
+	case module.CollectedHourlyForecast:
+		return ctx.Collected.Hourly != nil
+	case module.CollectedAlerts:
+		return ctx.Collected.Alerts != nil
+	case module.CollectedDiscussion:
+		return ctx.Collected.Discussion != nil
+	case module.CollectedWeatherStory:
+		return ctx.Collected.WeatherStory != nil
+	case module.CollectedSPCConvectiveOutlooks:
+		return ctx.Collected.SPCConvectiveOutlooks != nil
+	case module.CollectedSourceMetadata:
+		return len(ctx.Collected.SourceProvenance) > 0 || len(ctx.Collected.SourceWarnings) > 0
+	default:
+		return false
+	}
+}
+
+func derivedFactAvailable(requirement module.FactRequirement, ctx ModuleContext) bool {
+	switch requirement {
+	case module.RequiresDerivedHourlyPeriods:
+		return len(ctx.Derived.ValidPeriodHourlyPeriods) > 0
+	case module.RequiresDerivedNarrativePeriods:
+		return len(ctx.Derived.ValidPeriodNarrativePeriods) > 0
+	case module.RequiresDerivedAlertOverlaps:
+		return true
+	case module.RequiresDerivedDailySummaries:
+		return len(ctx.Derived.DailySummaries) > 0
+	case module.RequiresDerivedDaypartSummaries:
+		return len(ctx.Derived.DaypartSummaries) > 0
+	case module.RequiresDerivedPrecipTiming:
+		return true
+	case module.RequiresDerivedSPCConvectiveOutlooks:
+		return ctx.Derived.SPCConvectiveOutlooks != nil
+	default:
+		return false
+	}
+}
+
+func (r ModuleRegistry) ValidateComposition(reportID report.ID, items []module.ConfigItem) error {
+	seenModules := map[module.ID]struct{}{}
+	seenStanzas := map[string]module.ID{}
+	for i, item := range items {
+		definition, err := r.Lookup(item.ID)
+		if err != nil {
+			return fmt.Errorf("modules[%d]: %w", i, err)
+		}
+		if _, ok := seenModules[item.ID]; ok && !definition.AllowDuplicate {
+			return fmt.Errorf("modules[%d]: duplicate module %q", i, item.ID)
+		}
+		seenModules[item.ID] = struct{}{}
+		if existingID, ok := seenStanzas[definition.StanzaName]; ok {
+			return fmt.Errorf("modules[%d]: duplicate stanza name %q for modules %q and %q", i, definition.StanzaName, existingID, item.ID)
+		}
+		seenStanzas[definition.StanzaName] = item.ID
+		if !definition.SupportsReport(reportID) {
+			return fmt.Errorf("modules[%d]: module %q is not compatible with report %q", i, item.ID, reportID)
+		}
+		if err := definition.ValidateOptions(item.Options); err != nil {
+			return fmt.Errorf("modules[%d]: %w", i, err)
+		}
+	}
+	return nil
+}
+
+func (d ModuleDefinition) SupportsReport(id report.ID) bool {
+	if len(d.SupportedReports) == 0 {
+		return true
+	}
+	for _, supported := range d.SupportedReports {
+		if supported == id {
+			return true
+		}
+	}
+	return false
+}
+
+func (d ModuleDefinition) ValidateOptions(options any) error {
+	if options == nil {
+		return nil
+	}
+	if d.DefaultOptions == nil {
+		return fmt.Errorf("module %q does not accept options", d.ID)
+	}
+	want := reflect.TypeOf(d.DefaultOptions)
+	got := reflect.TypeOf(options)
+	if got == want {
+		return nil
+	}
+	if got.Kind() == reflect.Pointer && got.Elem() == want {
+		return nil
+	}
+	return fmt.Errorf("module %q options have type %s, want %s", d.ID, got, want)
+}
+
+func defaultModuleDefinitions() []ModuleDefinition {
+	allReports := []report.ID{report.Daily, report.Today, report.Tomorrow, report.Hourly, report.ThreeDay, report.Weekend, report.Storm}
+	daypartReports := []report.ID{report.Daily, report.Today, report.Tomorrow, report.ThreeDay, report.Weekend}
+	return []ModuleDefinition{
+		{
+			ID:                module.Metadata,
+			StanzaName:        "metadata",
+			DefaultOptions:    module.MetadataOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedSourceMetadata},
+			SupportedReports:  allReports,
+			MissingData:       module.MissingDataEmpty,
+			Builder:           buildMetadataModule,
+		},
+		{
+			ID:                module.CurrentConditions,
+			StanzaName:        "current_conditions",
+			DefaultOptions:    module.CurrentConditionsOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedCurrentConditions},
+			SupportedReports:  allReports,
+			MissingData:       module.MissingDataOmit,
+			Builder:           buildCurrentConditionsModule,
+			PromptExporter:    exportCurrentConditionsPromptValue,
+		},
+		{
+			ID:                module.NarrativeForecast,
+			StanzaName:        "narrative_forecast",
+			DefaultOptions:    module.NarrativeForecastOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedNarrativeForecast},
+			RequiredDerived:   []module.FactRequirement{module.RequiresDerivedNarrativePeriods},
+			SupportedReports:  []report.ID{report.Daily, report.Today, report.Tomorrow},
+			MissingData:       module.MissingDataOmit,
+			Builder:           buildNarrativeForecastModule,
+		},
+		{
+			ID:                module.HourlyForecast,
+			StanzaName:        "hourly_forecast",
+			DefaultOptions:    module.HourlyForecastOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedHourlyForecast},
+			RequiredDerived:   []module.FactRequirement{module.RequiresDerivedHourlyPeriods},
+			SupportedReports:  []report.ID{report.Daily, report.Today, report.Tomorrow, report.Hourly},
+			MissingData:       module.MissingDataOmit,
+			Builder:           buildHourlyForecastModule,
+			PromptExporter:    exportHourlyForecastPromptValue,
+		},
+		{
+			ID:               module.DerivedDailySummary,
+			StanzaName:       "derived_daily_summary",
+			DefaultOptions:   module.DerivedDailySummaryOptions{},
+			RequiredDerived:  []module.FactRequirement{module.RequiresDerivedDailySummaries, module.RequiresDerivedPrecipTiming},
+			SupportedReports: []report.ID{report.Daily, report.Today, report.Tomorrow},
+			MissingData:      module.MissingDataError,
+			Builder:          buildDerivedDailySummaryModule,
+		},
+		{
+			ID:               module.DerivedDaypartSummaries,
+			StanzaName:       "derived_daypart_summaries",
+			DefaultOptions:   module.DerivedDaypartSummariesOptions{},
+			RequiredDerived:  []module.FactRequirement{module.RequiresDerivedDaypartSummaries},
+			SupportedReports: daypartReports,
+			MissingData:      module.MissingDataError,
+			Builder:          buildDerivedDaypartSummariesModule,
+			PromptExporter:   exportDerivedDaypartSummariesPromptValue,
+		},
+		{
+			ID:               module.PrecipTiming,
+			StanzaName:       "precip_timing",
+			DefaultOptions:   module.PrecipTimingOptions{},
+			RequiredDerived:  []module.FactRequirement{module.RequiresDerivedPrecipTiming},
+			SupportedReports: allReports,
+			MissingData:      module.MissingDataEmpty,
+			Builder:          buildPrecipTimingModule,
+		},
+		{
+			ID:                module.AlertDigest,
+			StanzaName:        "alert_digest",
+			DefaultOptions:    module.AlertDigestOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedAlerts},
+			RequiredDerived:   []module.FactRequirement{module.RequiresDerivedAlertOverlaps},
+			SupportedReports:  allReports,
+			MissingData:       module.MissingDataEmpty,
+			Builder:           buildAlertDigestModule,
+		},
+		{
+			ID:                module.SPCConvectiveOutlooks,
+			StanzaName:        string(module.SPCConvectiveOutlooks),
+			DefaultOptions:    module.SPCConvectiveOutlooksOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedSPCConvectiveOutlooks},
+			RequiredDerived:   []module.FactRequirement{module.RequiresDerivedSPCConvectiveOutlooks},
+			SupportedReports:  allReports,
+			MissingData:       module.MissingDataEmpty,
+			Builder:           buildSPCConvectiveOutlooksModule,
+		},
+		{
+			ID:                module.AreaForecastDiscussion,
+			StanzaName:        "area_forecast_discussion",
+			DefaultOptions:    module.AreaForecastDiscussionOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedDiscussion},
+			SupportedReports:  allReports,
+			MissingData:       module.MissingDataOmit,
+			Builder:           buildAreaForecastDiscussionModule,
+		},
+		{
+			ID:                module.SPCConvectiveDiscussion,
+			StanzaName:        string(module.SPCConvectiveDiscussion),
+			DefaultOptions:    module.SPCConvectiveDiscussionOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedSPCConvectiveOutlooks},
+			RequiredDerived:   []module.FactRequirement{module.RequiresDerivedSPCConvectiveOutlooks},
+			SupportedReports:  allReports,
+			MissingData:       module.MissingDataOmit,
+			Builder:           buildSPCConvectiveDiscussionModule,
+		},
+		{
+			ID:                module.WeatherStory,
+			StanzaName:        "weather_story",
+			DefaultOptions:    module.WeatherStoryOptions{},
+			RequiredCollected: []module.FactRequirement{module.CollectedWeatherStory},
+			SupportedReports:  allReports,
+			MissingData:       module.MissingDataOmit,
+			Builder:           buildWeatherStoryModule,
+		},
+		{
+			ID:               module.OutdoorWindows,
+			StanzaName:       "outdoor_windows",
+			DefaultOptions:   module.OutdoorWindowsOptions{},
+			RequiredDerived:  []module.FactRequirement{module.RequiresDerivedDaypartSummaries},
+			SupportedReports: daypartReports,
+			MissingData:      module.MissingDataEmpty,
+			Builder:          buildOutdoorWindowsModule,
+		},
+		{
+			ID:               module.TodayPlanning,
+			StanzaName:       "today_planning",
+			DefaultOptions:   module.TodayPlanningOptions{},
+			RequiredDerived:  []module.FactRequirement{module.RequiresDerivedDailySummaries},
+			SupportedReports: []report.ID{report.Today},
+			MissingData:      module.MissingDataEmpty,
+			Builder:          buildTodayPlanningModule,
+		},
+		{
+			ID:               module.TomorrowPlanning,
+			StanzaName:       "tomorrow_planning",
+			DefaultOptions:   module.TomorrowPlanningOptions{},
+			RequiredDerived:  []module.FactRequirement{module.RequiresDerivedDailySummaries},
+			SupportedReports: []report.ID{report.Tomorrow},
+			MissingData:      module.MissingDataEmpty,
+			Builder:          buildTomorrowPlanningModule,
+		},
+		{
+			ID:               module.DailyPlanning,
+			StanzaName:       "daily_planning",
+			DefaultOptions:   module.DailyPlanningOptions{},
+			RequiredDerived:  []module.FactRequirement{module.RequiresDerivedDailySummaries},
+			SupportedReports: []report.ID{report.Daily},
+			MissingData:      module.MissingDataEmpty,
+			Builder:          buildDailyPlanningModule,
+		},
+	}
+}

internal/briefing/modules_test.go

@@ -0,0 +1,473 @@
+package briefing
+
+import (
+	"encoding/json"
+	"errors"
+	"strings"
+	"testing"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/facts"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+func TestDefaultModuleRegistryValidatesReportDefaults(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	for _, definition := range report.DefaultRegistry().All() {
+		if err := registry.ValidateComposition(definition.ID, definition.Modules); err != nil {
+			t.Fatalf("ValidateComposition(%s) error = %v", definition.ID, err)
+		}
+		for _, item := range definition.Modules {
+			moduleDefinition, err := registry.Lookup(item.ID)
+			if err != nil {
+				t.Fatalf("Lookup(%s) error = %v", item.ID, err)
+			}
+			if moduleDefinition.Builder == nil {
+				t.Fatalf("report %s module %s has no builder", definition.ID, item.ID)
+			}
+		}
+	}
+}
+
+func TestDefaultReportModulesBuildSnapshots(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	for _, definition := range report.DefaultRegistry().All() {
+		t.Run(string(definition.ID), func(t *testing.T) {
+			ctx := derivedModuleContext(definition.ID)
+			var outputs []module.Output
+			for _, item := range definition.Modules {
+				output, err := registry.BuildModule(ctx, item)
+				if err != nil {
+					t.Fatalf("BuildModule(%s) error = %v", item.ID, err)
+				}
+				if output != nil {
+					if output.DataPackageValue() == nil {
+						t.Fatalf("BuildModule(%s) data package value = nil", item.ID)
+					}
+					outputs = append(outputs, *output)
+				}
+			}
+			snapshot, err := module.NewSnapshot(outputs)
+			if err != nil {
+				t.Fatalf("NewSnapshot() error = %v", err)
+			}
+			if len(snapshot.Outputs) == 0 {
+				t.Fatal("snapshot outputs = 0, want default report modules")
+			}
+		})
+	}
+}
+
+func TestDefaultModuleDefinitionsDeclarePromptExportPolicy(t *testing.T) {
+	customExporters := map[module.ID]struct{}{
+		module.CurrentConditions:       {},
+		module.HourlyForecast:          {},
+		module.DerivedDaypartSummaries: {},
+	}
+	passThroughExporters := map[module.ID]struct{}{
+		module.Metadata:                {},
+		module.NarrativeForecast:       {},
+		module.DerivedDailySummary:     {},
+		module.PrecipTiming:            {},
+		module.AlertDigest:             {},
+		module.SPCConvectiveOutlooks:   {},
+		module.AreaForecastDiscussion:  {},
+		module.SPCConvectiveDiscussion: {},
+		module.WeatherStory:            {},
+		module.OutdoorWindows:          {},
+		module.TodayPlanning:           {},
+		module.TomorrowPlanning:        {},
+		module.DailyPlanning:           {},
+	}
+
+	for _, definition := range defaultModuleDefinitions() {
+		_, custom := customExporters[definition.ID]
+		_, passThrough := passThroughExporters[definition.ID]
+		if custom == passThrough {
+			t.Fatalf("module %q exporter policy custom=%v passThrough=%v, want exactly one policy", definition.ID, custom, passThrough)
+		}
+		if custom && definition.PromptExporter == nil {
+			t.Fatalf("module %q PromptExporter = nil, want custom prompt exporter", definition.ID)
+		}
+		if passThrough && definition.PromptExporter != nil {
+			t.Fatalf("module %q PromptExporter is set, want default pass-through", definition.ID)
+		}
+	}
+}
+
+func TestModuleRegistryAddsPassThroughPromptValue(t *testing.T) {
+	registry, err := NewModuleRegistry([]ModuleDefinition{
+		{
+			ID:         module.Metadata,
+			StanzaName: "metadata",
+			Builder: func(ModuleContext, any) (*module.Output, error) {
+				return &module.Output{
+					ID:         module.Metadata,
+					StanzaName: "metadata",
+					Value:      testRegistryValue{Message: "rich"},
+				}, nil
+			},
+		},
+	})
+	if err != nil {
+		t.Fatalf("NewModuleRegistry() error = %v", err)
+	}
+
+	output, err := registry.BuildModule(testRegistryModuleContext(), module.ConfigItem{ID: module.Metadata})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	if output == nil {
+		t.Fatal("BuildModule() output = nil, want output")
+	}
+	if output.PromptValue != output.Value {
+		t.Fatalf("PromptValue = %#v, want pass-through rich value %#v", output.PromptValue, output.Value)
+	}
+	if output.DataPackageValue() != output.Value {
+		t.Fatalf("DataPackageValue() = %#v, want rich value", output.DataPackageValue())
+	}
+}
+
+func TestModuleRegistryAddsCustomPromptValue(t *testing.T) {
+	registry, err := NewModuleRegistry([]ModuleDefinition{
+		{
+			ID:         module.Metadata,
+			StanzaName: "metadata",
+			Builder: func(ModuleContext, any) (*module.Output, error) {
+				return &module.Output{
+					ID:         module.Metadata,
+					StanzaName: "metadata",
+					Value:      testRegistryValue{Message: "rich"},
+				}, nil
+			},
+			PromptExporter: func(value any) (any, error) {
+				rich, ok := value.(testRegistryValue)
+				if !ok {
+					return nil, errors.New("unexpected rich value type")
+				}
+				return testRegistryValue{Message: rich.Message + " prompt"}, nil
+			},
+		},
+	})
+	if err != nil {
+		t.Fatalf("NewModuleRegistry() error = %v", err)
+	}
+
+	output, err := registry.BuildModule(testRegistryModuleContext(), module.ConfigItem{ID: module.Metadata})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	got, ok := output.PromptValue.(testRegistryValue)
+	if !ok {
+		t.Fatalf("PromptValue type = %T, want testRegistryValue", output.PromptValue)
+	}
+	if got.Message != "rich prompt" {
+		t.Fatalf("PromptValue = %#v, want custom prompt value", got)
+	}
+	if output.DataPackageValue() != output.PromptValue {
+		t.Fatalf("DataPackageValue() = %#v, want custom prompt value", output.DataPackageValue())
+	}
+	if output.Value.(testRegistryValue).Message != "rich" {
+		t.Fatalf("Value = %#v, want rich value unchanged", output.Value)
+	}
+}
+
+func TestModuleRegistryWrapsPromptExporterErrors(t *testing.T) {
+	registry, err := NewModuleRegistry([]ModuleDefinition{
+		{
+			ID:         module.Metadata,
+			StanzaName: "metadata",
+			Builder: func(ModuleContext, any) (*module.Output, error) {
+				return &module.Output{ID: module.Metadata, StanzaName: "metadata", Value: testRegistryValue{Message: "rich"}}, nil
+			},
+			PromptExporter: func(any) (any, error) {
+				return nil, errors.New("unsupported value")
+			},
+		},
+	})
+	if err != nil {
+		t.Fatalf("NewModuleRegistry() error = %v", err)
+	}
+
+	_, err = registry.BuildModule(testRegistryModuleContext(), module.ConfigItem{ID: module.Metadata})
+	if err == nil ||
+		!strings.Contains(err.Error(), `module "metadata" stanza "metadata" prompt export`) ||
+		!strings.Contains(err.Error(), "unsupported value") {
+		t.Fatalf("BuildModule() error = %v, want wrapped exporter error", err)
+	}
+}
+
+func TestModuleRegistryValidatesOutputBeforePromptExport(t *testing.T) {
+	called := false
+	registry, err := NewModuleRegistry([]ModuleDefinition{
+		{
+			ID:         module.Metadata,
+			StanzaName: "metadata",
+			Builder: func(ModuleContext, any) (*module.Output, error) {
+				return &module.Output{ID: module.CurrentConditions, StanzaName: "metadata", Value: testRegistryValue{Message: "rich"}}, nil
+			},
+			PromptExporter: func(any) (any, error) {
+				called = true
+				return testRegistryValue{Message: "prompt"}, nil
+			},
+		},
+	})
+	if err != nil {
+		t.Fatalf("NewModuleRegistry() error = %v", err)
+	}
+
+	_, err = registry.BuildModule(testRegistryModuleContext(), module.ConfigItem{ID: module.Metadata})
+	if err == nil || !strings.Contains(err.Error(), `module "metadata" produced output id "current_conditions"`) {
+		t.Fatalf("BuildModule() error = %v, want output id validation error", err)
+	}
+	if called {
+		t.Fatal("PromptExporter called before output validation")
+	}
+}
+
+func TestModuleRegistryPromptValueIsNotPersistedInSnapshotJSON(t *testing.T) {
+	registry, err := NewModuleRegistry([]ModuleDefinition{
+		{
+			ID:         module.Metadata,
+			StanzaName: "metadata",
+			Builder: func(ModuleContext, any) (*module.Output, error) {
+				return &module.Output{ID: module.Metadata, StanzaName: "metadata", Value: testRegistryValue{Message: "rich"}}, nil
+			},
+			PromptExporter: func(any) (any, error) {
+				return testRegistryValue{Message: "prompt-only"}, nil
+			},
+		},
+	})
+	if err != nil {
+		t.Fatalf("NewModuleRegistry() error = %v", err)
+	}
+	output, err := registry.BuildModule(testRegistryModuleContext(), module.ConfigItem{ID: module.Metadata})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	snapshot, err := module.NewSnapshot([]module.Output{*output})
+	if err != nil {
+		t.Fatalf("NewSnapshot() error = %v", err)
+	}
+	data, err := json.Marshal(snapshot)
+	if err != nil {
+		t.Fatalf("Marshal() error = %v", err)
+	}
+	text := string(data)
+	if !strings.Contains(text, `"message":"rich"`) {
+		t.Fatalf("snapshot JSON missing rich value: %s", text)
+	}
+	if strings.Contains(text, "prompt-only") || strings.Contains(text, "promptValue") || strings.Contains(text, "PromptValue") {
+		t.Fatalf("snapshot JSON includes runtime-only prompt value: %s", text)
+	}
+}
+
+func TestHourlyDefaultModuleOptions(t *testing.T) {
+	definition := report.DefaultRegistry().MustLookup(report.Hourly)
+	var found bool
+	for _, item := range definition.Modules {
+		if item.ID != module.AreaForecastDiscussion {
+			continue
+		}
+		found = true
+		options, ok := item.Options.(module.AreaForecastDiscussionOptions)
+		if !ok {
+			t.Fatalf("AFD options type = %T, want AreaForecastDiscussionOptions", item.Options)
+		}
+		if strings.Join(options.Sections, ",") != "key_messages,short_term" {
+			t.Fatalf("AFD sections = %#v, want key messages and short term", options.Sections)
+		}
+	}
+	if !found {
+		t.Fatal("hourly default modules missing area_forecast_discussion")
+	}
+}
+
+func TestModuleRegistryRejectsUnknownModule(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	err := registry.ValidateComposition(report.Daily, []module.ConfigItem{{ID: module.ID("unknown")}})
+	if err == nil || !strings.Contains(err.Error(), `unknown module "unknown"`) {
+		t.Fatalf("error = %v, want unknown module", err)
+	}
+}
+
+func TestModuleRegistryRejectsDuplicateModuleIDs(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	err := registry.ValidateComposition(report.Daily, []module.ConfigItem{
+		{ID: module.Metadata},
+		{ID: module.Metadata},
+	})
+	if err == nil || !strings.Contains(err.Error(), `duplicate module "metadata"`) {
+		t.Fatalf("error = %v, want duplicate module", err)
+	}
+}
+
+func TestModuleRegistryRejectsDuplicateStanzaNames(t *testing.T) {
+	_, err := NewModuleRegistry([]ModuleDefinition{
+		{ID: module.Metadata, StanzaName: "metadata", DefaultOptions: module.MetadataOptions{}, Builder: noopModuleBuilder},
+		{ID: module.CurrentConditions, StanzaName: "metadata", DefaultOptions: module.CurrentConditionsOptions{}, Builder: noopModuleBuilder},
+	})
+	if err == nil || !strings.Contains(err.Error(), `duplicate stanza name "metadata"`) {
+		t.Fatalf("error = %v, want duplicate stanza name", err)
+	}
+}
+
+func TestModuleRegistryRejectsIncompatibleReports(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	err := registry.ValidateComposition(report.Daily, []module.ConfigItem{{ID: module.TomorrowPlanning}})
+	if err == nil || !strings.Contains(err.Error(), `module "tomorrow_planning" is not compatible with report "daily"`) {
+		t.Fatalf("error = %v, want incompatible report", err)
+	}
+}
+
+func TestModuleRegistryValidatesTodayPlanningSupport(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	if err := registry.ValidateComposition(report.Today, []module.ConfigItem{{ID: module.TodayPlanning}}); err != nil {
+		t.Fatalf("ValidateComposition(today) error = %v", err)
+	}
+	for _, id := range []report.ID{report.Tomorrow, report.Daily} {
+		t.Run(string(id), func(t *testing.T) {
+			err := registry.ValidateComposition(id, []module.ConfigItem{{ID: module.TodayPlanning}})
+			if err == nil || !strings.Contains(err.Error(), `module "today_planning" is not compatible with report`) {
+				t.Fatalf("ValidateComposition(%s) error = %v, want incompatible report", id, err)
+			}
+		})
+	}
+}
+
+func TestModuleRegistryValidatesDailyPlanningSupport(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	if err := registry.ValidateComposition(report.Daily, []module.ConfigItem{{ID: module.DailyPlanning}}); err != nil {
+		t.Fatalf("ValidateComposition(daily) error = %v", err)
+	}
+	for _, id := range []report.ID{report.Today, report.Tomorrow, report.Hourly, report.ThreeDay, report.Weekend, report.Storm} {
+		t.Run(string(id), func(t *testing.T) {
+			err := registry.ValidateComposition(id, []module.ConfigItem{{ID: module.DailyPlanning}})
+			if err == nil || !strings.Contains(err.Error(), `module "daily_planning" is not compatible with report`) {
+				t.Fatalf("ValidateComposition(%s) error = %v, want incompatible report", id, err)
+			}
+		})
+	}
+}
+
+func TestModuleRegistrySupportsTodayEligibleModules(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	err := registry.ValidateComposition(report.Today, []module.ConfigItem{
+		{ID: module.Metadata},
+		{ID: module.CurrentConditions},
+		{ID: module.NarrativeForecast},
+		{ID: module.HourlyForecast},
+		{ID: module.DerivedDailySummary},
+		{ID: module.DerivedDaypartSummaries},
+		{ID: module.PrecipTiming},
+		{ID: module.AlertDigest},
+		{ID: module.SPCConvectiveOutlooks},
+		{ID: module.AreaForecastDiscussion},
+		{ID: module.SPCConvectiveDiscussion},
+		{ID: module.WeatherStory},
+		{ID: module.OutdoorWindows},
+	})
+	if err != nil {
+		t.Fatalf("ValidateComposition(today eligible modules) error = %v", err)
+	}
+}
+
+func TestModuleRegistryRejectsHourlyIncompatibleModules(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	for _, id := range []module.ID{
+		module.NarrativeForecast,
+		module.DerivedDailySummary,
+		module.DerivedDaypartSummaries,
+		module.OutdoorWindows,
+		module.TodayPlanning,
+		module.TomorrowPlanning,
+		module.DailyPlanning,
+	} {
+		t.Run(string(id), func(t *testing.T) {
+			err := registry.ValidateComposition(report.Hourly, []module.ConfigItem{{ID: id}})
+			if err == nil || !strings.Contains(err.Error(), `not compatible with report "hourly"`) {
+				t.Fatalf("ValidateComposition() error = %v, want incompatible hourly module", err)
+			}
+		})
+	}
+}
+
+func TestModuleRegistryRejectsDefinitionsWithoutBuilders(t *testing.T) {
+	_, err := NewModuleRegistry([]ModuleDefinition{
+		{ID: module.Metadata, StanzaName: "metadata", DefaultOptions: module.MetadataOptions{}},
+	})
+	if err == nil || !strings.Contains(err.Error(), `module "metadata" has no builder`) {
+		t.Fatalf("error = %v, want missing builder", err)
+	}
+}
+
+func TestModuleRegistryRejectsUnsupportedMissingDataWarn(t *testing.T) {
+	_, err := NewModuleRegistry([]ModuleDefinition{
+		{ID: module.Metadata, StanzaName: "metadata", DefaultOptions: module.MetadataOptions{}, MissingData: module.MissingDataWarn, Builder: noopModuleBuilder},
+	})
+	if err == nil || !strings.Contains(err.Error(), `unsupported missing data behavior`) {
+		t.Fatalf("error = %v, want unsupported missing-data behavior", err)
+	}
+}
+
+func TestModuleRegistryRejectsInvalidOptionShapes(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	err := registry.ValidateComposition(report.Daily, []module.ConfigItem{
+		{ID: module.Metadata, Options: module.CurrentConditionsOptions{}},
+	})
+	if err == nil || !strings.Contains(err.Error(), `module "metadata" options have type module.CurrentConditionsOptions, want module.MetadataOptions`) {
+		t.Fatalf("error = %v, want invalid option shape", err)
+	}
+}
+
+func TestModuleRegistryAcceptsTypedOptions(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	err := registry.ValidateComposition(report.Daily, []module.ConfigItem{
+		{ID: module.Metadata, Options: module.MetadataOptions{}},
+		{ID: module.CurrentConditions, Options: &module.CurrentConditionsOptions{}},
+	})
+	if err != nil {
+		t.Fatalf("ValidateComposition() error = %v", err)
+	}
+}
+
+func TestSPCConvectiveOutlookCollectedRequirementAvailability(t *testing.T) {
+	ctx := ModuleContext{}
+	if collectedFactAvailable(module.CollectedSPCConvectiveOutlooks, ctx) {
+		t.Fatal("collectedFactAvailable() = true, want false without source")
+	}
+
+	ctx.Collected = facts.CollectedFacts{SPCConvectiveOutlooks: &weatherdata.ConvectiveOutlookRun{}}
+	if !collectedFactAvailable(module.CollectedSPCConvectiveOutlooks, ctx) {
+		t.Fatal("collectedFactAvailable() = false, want true with checked source")
+	}
+}
+
+func TestSPCConvectiveOutlookDerivedRequirementAvailability(t *testing.T) {
+	ctx := ModuleContext{}
+	if derivedFactAvailable(module.RequiresDerivedSPCConvectiveOutlooks, ctx) {
+		t.Fatal("derivedFactAvailable() = true, want false without derived outlooks")
+	}
+
+	ctx.Derived = facts.DerivedFacts{SPCConvectiveOutlooks: []weatherdata.ConvectiveOutlook{}}
+	if !derivedFactAvailable(module.RequiresDerivedSPCConvectiveOutlooks, ctx) {
+		t.Fatal("derivedFactAvailable() = false, want true for checked empty derived outlooks")
+	}
+}
+
+func noopModuleBuilder(ModuleContext, any) (*module.Output, error) {
+	return &module.Output{ID: module.Metadata, StanzaName: "metadata", Value: struct{}{}}, nil
+}
+
+type testRegistryValue struct {
+	Message string `json:"message"`
+}
+
+func testRegistryModuleContext() ModuleContext {
+	return ModuleContext{
+		Resolved: report.Resolved{
+			Definition: report.DefaultRegistry().MustLookup(report.Daily),
+		},
+	}
+}

internal/briefing/narrative_forecast_module.go

@@ -0,0 +1,93 @@
+package briefing
+
+import (
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+type NarrativeForecastModule struct {
+	Product          string                    `json:"product,omitempty"`
+	IssuedAt         time.Time                 `json:"issued_at,omitempty"`
+	UpdatedAt        *time.Time                `json:"updated_at,omitempty"`
+	SourceLocation   string                    `json:"source_location,omitempty"`
+	SourceLocationID string                    `json:"source_location_id,omitempty"`
+	Periods          []NarrativeForecastPeriod `json:"periods,omitempty"`
+}
+
+type NarrativeForecastPeriod struct {
+	Name                              string   `json:"name,omitempty"`
+	PeriodBegins                      string   `json:"period_begins,omitempty"`
+	PeriodEnds                        string   `json:"period_ends,omitempty"`
+	IsDay                             *bool    `json:"is_day,omitempty"`
+	TextDescription                   string   `json:"text_description,omitempty"`
+	TemperatureC                      *float64 `json:"temperature_c,omitempty"`
+	TemperatureF                      *float64 `json:"temperature_f,omitempty"`
+	TemperatureCMin                   *float64 `json:"temperature_c_min,omitempty"`
+	TemperatureFMin                   *float64 `json:"temperature_f_min,omitempty"`
+	TemperatureCMax                   *float64 `json:"temperature_c_max,omitempty"`
+	TemperatureFMax                   *float64 `json:"temperature_f_max,omitempty"`
+	WindSpeedKmh                      *float64 `json:"wind_speed_kmh,omitempty"`
+	WindSpeedMph                      *float64 `json:"wind_speed_mph,omitempty"`
+	WindGustKmh                       *float64 `json:"wind_gust_kmh,omitempty"`
+	WindGustMph                       *float64 `json:"wind_gust_mph,omitempty"`
+	WindDirection                     string   `json:"wind_direction,omitempty"`
+	ProbabilityOfPrecipitationPercent *float64 `json:"probability_of_precipitation_percent,omitempty"`
+}
+
+func buildNarrativeForecastModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	narrative := ctx.Collected.Narrative
+	if narrative == nil || len(ctx.Derived.ValidPeriodNarrativePeriods) == 0 {
+		return nil, nil
+	}
+	value := NarrativeForecastModule{
+		Product:          narrative.Product,
+		IssuedAt:         narrative.IssuedAt,
+		UpdatedAt:        copyTime(narrative.UpdatedAt),
+		SourceLocation:   narrative.LocationName,
+		SourceLocationID: narrative.LocationID,
+		Periods:          narrativeForecastPeriods(ctx.Derived.ValidPeriodNarrativePeriods, ctx.Timezone),
+	}
+	if value.isEmpty() {
+		return nil, nil
+	}
+	return &module.Output{ID: module.NarrativeForecast, StanzaName: "narrative_forecast", Value: value}, nil
+}
+
+func narrativeForecastPeriods(periods []weatherdata.ForecastPeriod, timezone string) []NarrativeForecastPeriod {
+	out := make([]NarrativeForecastPeriod, 0, len(periods))
+	for _, period := range periods {
+		validPeriod := timeutil.Period{Start: period.StartTime, End: period.EndTime}
+		out = append(out, NarrativeForecastPeriod{
+			Name:                              period.Name,
+			PeriodBegins:                      friendlyPeriodBeginsLabel(validPeriod, timezone),
+			PeriodEnds:                        friendlyPeriodEndsLabel(validPeriod, timezone),
+			IsDay:                             copyBool(period.IsDay),
+			TextDescription:                   period.TextDescription,
+			TemperatureC:                      copyFloat(period.TemperatureC),
+			TemperatureF:                      copyFloat(period.TemperatureF),
+			TemperatureCMin:                   copyFloat(period.TemperatureCMin),
+			TemperatureFMin:                   copyFloat(period.TemperatureFMin),
+			TemperatureCMax:                   copyFloat(period.TemperatureCMax),
+			TemperatureFMax:                   copyFloat(period.TemperatureFMax),
+			WindSpeedKmh:                      copyFloat(period.WindSpeedKmh),
+			WindSpeedMph:                      copyFloat(period.WindSpeedMph),
+			WindGustKmh:                       copyFloat(period.WindGustKmh),
+			WindGustMph:                       copyFloat(period.WindGustMph),
+			WindDirection:                     windDirectionLabel(period.WindDirectionDegrees),
+			ProbabilityOfPrecipitationPercent: copyFloat(period.ProbabilityOfPrecipitationPercent),
+		})
+	}
+	return out
+}
+
+func (v NarrativeForecastModule) isEmpty() bool {
+	return v.Product == "" &&
+		v.IssuedAt.IsZero() &&
+		v.UpdatedAt == nil &&
+		v.SourceLocation == "" &&
+		v.SourceLocationID == "" &&
+		len(v.Periods) == 0
+}

internal/briefing/outdoor_windows_module.go

@@ -0,0 +1,38 @@
+package briefing
+
+import "gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+
+type OutdoorWindowsModule struct {
+	Best  *OutdoorWindowModule `json:"best,omitempty"`
+	Worst *OutdoorWindowModule `json:"worst,omitempty"`
+}
+
+type OutdoorWindowModule struct {
+	Daypart      string   `json:"daypart"`
+	PeriodBegins string   `json:"period_begins,omitempty"`
+	PeriodEnds   string   `json:"period_ends,omitempty"`
+	Reasons      []string `json:"reasons,omitempty"`
+	Score        float64  `json:"score"`
+}
+
+func buildOutdoorWindowsModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	windows := buildOutdoorWindows(ctx.Derived.DaypartSummaries)
+	value := OutdoorWindowsModule{
+		Best:  outdoorWindowValue(windows.Best, ctx.Timezone),
+		Worst: outdoorWindowValue(windows.Worst, ctx.Timezone),
+	}
+	return &module.Output{ID: module.OutdoorWindows, StanzaName: "outdoor_windows", Value: value}, nil
+}
+
+func outdoorWindowValue(window *OutdoorWindow, timezone string) *OutdoorWindowModule {
+	if window == nil {
+		return nil
+	}
+	return &OutdoorWindowModule{
+		Daypart:      window.Daypart,
+		PeriodBegins: friendlyPeriodBeginsLabel(window.Period, timezone),
+		PeriodEnds:   friendlyPeriodEndsLabel(window.Period, timezone),
+		Reasons:      append([]string(nil), window.Reasons...),
+		Score:        window.Score,
+	}
+}

internal/briefing/package.go

@@ -1,29 +1,15 @@
-// Package briefing builds report-specific structured briefing packages.
+// Package briefing builds prompt-facing module values.
 package briefing
 
 import (
-	"fmt"
 	"time"
 
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/fileutil"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
 )
 
-const SchemaVersion = "weatherreporter.briefing.v1"
-
-type Package struct {
-	Metadata          Metadata                  `json:"metadata"`
-	CurrentConditions *CurrentConditionsContext `json:"currentConditions,omitempty"`
-	Daily             *Daily                    `json:"daily,omitempty"`
-	ThreeDay          *ThreeDay                 `json:"threeDay,omitempty"`
-	Weekend           *Weekend                  `json:"weekend,omitempty"`
-	Storm             *Storm                    `json:"storm,omitempty"`
-}
-
 type Metadata struct {
-	SchemaVersion    string                   `json:"schemaVersion"`
 	RunID            string                      `json:"runId"`
 	ReportID         report.ID                   `json:"reportId"`
 	Variant          string                      `json:"variant,omitempty"`
@@ -36,7 +22,7 @@ type Metadata struct {
 	SourceLocationID string                      `json:"sourceLocationId,omitempty"`
 	SourceLocation   string                      `json:"sourceLocation,omitempty"`
 	Sources          []SourceMetadata            `json:"sources,omitempty"`
-	SourceWarnings   []forecast.SourceWarning `json:"sourceWarnings,omitempty"`
+	SourceWarnings   []weatherdata.SourceWarning `json:"sourceWarnings,omitempty"`
 	Alerts           *AlertStatus                `json:"alerts,omitempty"`
 }
 
@@ -47,21 +33,6 @@ type LocationContext struct {
 	Timezone string `json:"timezone,omitempty"`
 }
 
-type CurrentConditionsContext struct {
-	ConditionText           string   `json:"conditionText,omitempty"`
-	IsDay                   *bool    `json:"isDay,omitempty"`
-	TemperatureC            *float64 `json:"temperatureC,omitempty"`
-	TemperatureF            *float64 `json:"temperatureF,omitempty"`
-	ApparentTemperatureC    *float64 `json:"apparentTemperatureC,omitempty"`
-	ApparentTemperatureF    *float64 `json:"apparentTemperatureF,omitempty"`
-	DewpointC               *float64 `json:"dewpointC,omitempty"`
-	DewpointF               *float64 `json:"dewpointF,omitempty"`
-	RelativeHumidityPercent *float64 `json:"relativeHumidityPercent,omitempty"`
-	WindSpeedKmh            *float64 `json:"windSpeedKmh,omitempty"`
-	WindSpeedMph            *float64 `json:"windSpeedMph,omitempty"`
-	WindDirectionDegrees    *float64 `json:"windDirectionDegrees,omitempty"`
-}
-
 type SourceMetadata struct {
 	Name       string                      `json:"name"`
 	Endpoint   string                      `json:"endpoint,omitempty"`
@@ -70,7 +41,7 @@ type SourceMetadata struct {
 	UpdatedAt  *time.Time                  `json:"updatedAt,omitempty"`
 	DataSHA256 string                      `json:"dataSha256,omitempty"`
 	Missing    bool                        `json:"missing,omitempty"`
-	Warnings   []forecast.SourceWarning `json:"warnings,omitempty"`
+	Warnings   []weatherdata.SourceWarning `json:"warnings,omitempty"`
 }
 
 type AlertStatus struct {
@@ -82,7 +53,7 @@ type AlertStatus struct {
 
 type BuildContext struct {
 	Resolved report.Resolved
-	Bundle   *forecast.Bundle
+	Bundle   *weatherdata.Bundle
 	Units    string
 	Timezone string
 	Location *LocationContext
@@ -92,7 +63,6 @@ func BuildMetadata(ctx BuildContext) Metadata {
 	metadata := ctx.Resolved.Metadata()
 	sourceLocationID, sourceLocation := sourceLocation(ctx.Bundle)
 	return Metadata{
-		SchemaVersion:    SchemaVersion,
 		RunID:            metadata.RunID,
 		ReportID:         metadata.ReportID,
 		Variant:          variantForReport(metadata.ReportID),
@@ -110,13 +80,6 @@ func BuildMetadata(ctx BuildContext) Metadata {
 	}
 }
 
-func buildPackage(ctx BuildContext) Package {
-	return Package{
-		Metadata:          BuildMetadata(ctx),
-		CurrentConditions: currentConditions(ctx.Bundle),
-	}
-}
-
 func copyLocation(location *LocationContext) *LocationContext {
 	if location == nil {
 		return nil
@@ -125,43 +88,15 @@ func copyLocation(location *LocationContext) *LocationContext {
 	return &copied
 }
 
-func currentConditions(bundle *forecast.Bundle) *CurrentConditionsContext {
+func copyBool(value *bool) *bool {
-	if bundle == nil || bundle.Current == nil {
+	if value == nil {
 		return nil
 	}
-	current := bundle.Current
+	copied := *value
-	context := CurrentConditionsContext{
+	return &copied
-		ConditionText:           current.ConditionText,
-		IsDay:                   copyBool(current.IsDay),
-		TemperatureC:            copyFloat(current.TemperatureC),
-		TemperatureF:            copyFloat(current.TemperatureF),
-		ApparentTemperatureC:    copyFloat(current.ApparentTemperatureC),
-		ApparentTemperatureF:    copyFloat(current.ApparentTemperatureF),
-		DewpointC:               copyFloat(current.DewpointC),
-		DewpointF:               copyFloat(current.DewpointF),
-		RelativeHumidityPercent: copyFloat(current.RelativeHumidityPercent),
-		WindSpeedKmh:            copyFloat(current.WindSpeedKmh),
-		WindSpeedMph:            copyFloat(current.WindSpeedMph),
-		WindDirectionDegrees:    copyFloat(current.WindDirectionDegrees),
-	}
-	if context.ConditionText == "" &&
-		context.IsDay == nil &&
-		context.TemperatureC == nil &&
-		context.TemperatureF == nil &&
-		context.ApparentTemperatureC == nil &&
-		context.ApparentTemperatureF == nil &&
-		context.DewpointC == nil &&
-		context.DewpointF == nil &&
-		context.RelativeHumidityPercent == nil &&
-		context.WindSpeedKmh == nil &&
-		context.WindSpeedMph == nil &&
-		context.WindDirectionDegrees == nil {
-		return nil
-	}
-	return &context
 }
 
-func copyBool(value *bool) *bool {
+func copyInt(value *int) *int {
 	if value == nil {
 		return nil
 	}
@@ -177,18 +112,19 @@ func copyFloat(value *float64) *float64 {
 	return &copied
 }
 
-func Save(path string, pkg Package) error {
+func copyTime(value *time.Time) *time.Time {
-	if err := fileutil.WriteJSONAtomic(path, pkg); err != nil {
+	if value == nil {
-		return fmt.Errorf("save briefing package: %w", err)
-	}
 		return nil
 	}
+	copied := *value
+	return &copied
+}
 
-func sourceLocation(bundle *forecast.Bundle) (string, string) {
+func sourceLocation(bundle *weatherdata.Bundle) (string, string) {
 	if bundle == nil {
 		return "", ""
 	}
-	for _, run := range []*forecast.ForecastRun{bundle.Hourly, bundle.Narrative, bundle.Daily} {
+	for _, run := range []*weatherdata.ForecastRun{bundle.Hourly, bundle.Narrative, bundle.Daily} {
 		if run == nil {
 			continue
 		}
@@ -199,7 +135,7 @@ func sourceLocation(bundle *forecast.Bundle) (string, string) {
 	return "", ""
 }
 
-func sourceMetadata(bundle *forecast.Bundle) []SourceMetadata {
+func sourceMetadata(bundle *weatherdata.Bundle) []SourceMetadata {
 	if bundle == nil {
 		return nil
 	}
@@ -219,14 +155,14 @@ func sourceMetadata(bundle *forecast.Bundle) []SourceMetadata {
 	return out
 }
 
-func sourceWarnings(bundle *forecast.Bundle) []forecast.SourceWarning {
+func sourceWarnings(bundle *weatherdata.Bundle) []weatherdata.SourceWarning {
 	if bundle == nil {
 		return nil
 	}
 	return bundle.Warnings
 }
 
-func alertStatus(bundle *forecast.Bundle) *AlertStatus {
+func alertStatus(bundle *weatherdata.Bundle) *AlertStatus {
 	if bundle == nil {
 		return nil
 	}
@@ -247,21 +183,11 @@ func alertStatus(bundle *forecast.Bundle) *AlertStatus {
 	return status
 }
 
-func setRelevantAlertCount(metadata *Metadata, count int) {
-	if metadata.Alerts == nil {
-		if count == 0 {
-			return
-		}
-		metadata.Alerts = &AlertStatus{}
-	}
-	metadata.Alerts.RelevantCount = count
-}
-
 func variantForReport(id report.ID) string {
 	switch id {
-	case report.DailyToday:
+	case report.Daily, report.Today:
 		return "today"
-	case report.DailyTomorrow:
+	case report.Tomorrow:
 		return "tomorrow"
 	default:
 		return ""

internal/briefing/precip_timing_module.go

@@ -0,0 +1,55 @@
+package briefing
+
+import (
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+)
+
+type PrecipTimingModule struct {
+	MaxPopPercent        *int                        `json:"max_pop_percent,omitempty"`
+	MaxPopTime           string                      `json:"max_pop_time,omitempty"`
+	ProbabilityThreshold float64                     `json:"probability_threshold"`
+	PrecipitationWindows []PrecipitationWindowModule `json:"precipitation_windows,omitempty"`
+	ThunderMentioned     bool                        `json:"thunder_mentioned"`
+}
+
+type PrecipitationWindowModule struct {
+	PeriodBegins          string `json:"period_begins"`
+	PeriodBeginsHourLabel string `json:"period_begins_hour_label,omitempty"`
+	PeriodEnds            string `json:"period_ends,omitempty"`
+	PeriodEndsHourLabel   string `json:"period_ends_hour_label,omitempty"`
+	MaxPopPercent         *int   `json:"max_pop_percent,omitempty"`
+	MaxPopTime            string `json:"max_pop_time,omitempty"`
+	MaxPopHourLabel       string `json:"max_pop_hour_label,omitempty"`
+}
+
+func buildPrecipTimingModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	value := precipTimingValue(ctx.Derived.PrecipTiming, ctx.Timezone)
+	return &module.Output{ID: module.PrecipTiming, StanzaName: "precip_timing", Value: value}, nil
+}
+
+func precipTimingValue(timing forecast.PrecipTiming, timezone string) PrecipTimingModule {
+	value := PrecipTimingModule{
+		ProbabilityThreshold: timing.ProbabilityThreshold,
+		ThunderMentioned:     timing.ThunderMentioned,
+	}
+	if timing.MaxPrecipitationProbability != nil {
+		value.MaxPopPercent = roundedInt(&timing.MaxPrecipitationProbability.Value)
+		value.MaxPopTime = clockLabel(timing.MaxPrecipitationProbability.Time, timezone)
+	}
+	for _, window := range timing.PrecipitationWindows {
+		item := PrecipitationWindowModule{
+			PeriodBegins:          friendlyDateTimeLabel(window.Start, timezone),
+			PeriodBeginsHourLabel: hourMinuteLabel(window.Start, timezone),
+		}
+		if window.End != nil {
+			item.PeriodEnds = friendlyDateTimeLabel(*window.End, timezone)
+			item.PeriodEndsHourLabel = hourMinuteLabel(*window.End, timezone)
+		}
+		item.MaxPopPercent = roundedInt(&window.MaxPrecipitationProbability.Value)
+		item.MaxPopTime = clockLabel(window.MaxPrecipitationProbability.Time, timezone)
+		item.MaxPopHourLabel = hourMinuteLabel(window.MaxPrecipitationProbability.Time, timezone)
+		value.PrecipitationWindows = append(value.PrecipitationWindows, item)
+	}
+	return value
+}

internal/briefing/spc_convective_discussion_module.go

@@ -0,0 +1,94 @@
+package briefing
+
+import (
+	"fmt"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+const defaultSPCConvectiveDiscussionMinimumSeverityRank = 3
+const spcCategoricalOutlookType = "categorical"
+
+type SPCConvectiveDiscussionModule struct {
+	IncludedBecause string                          `json:"included_because"`
+	Discussions     []SPCConvectiveDiscussionRecord `json:"discussions"`
+}
+
+type SPCConvectiveDiscussionRecord struct {
+	Day          int    `json:"day,omitempty"`
+	PeriodBegins string `json:"period_begins,omitempty"`
+	PeriodEnds   string `json:"period_ends,omitempty"`
+	Headline     string `json:"headline,omitempty"`
+	Summary      string `json:"summary,omitempty"`
+	Discussion   string `json:"discussion,omitempty"`
+	UpdatedAt    string `json:"updated_at,omitempty"`
+}
+
+func buildSPCConvectiveDiscussionModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	qualifyingPeriods := spcConvectiveDiscussionQualifyingPeriods(ctx.Derived.SPCConvectiveOutlooks, ctx.Resolved.ValidPeriod)
+	if len(qualifyingPeriods) == 0 {
+		return nil, nil
+	}
+	records := spcConvectiveDiscussionRecords(qualifyingPeriods, ctx.Derived.SPCConvectiveDiscussions, ctx.Timezone)
+	if len(records) == 0 {
+		return nil, nil
+	}
+	value := SPCConvectiveDiscussionModule{
+		IncludedBecause: fmt.Sprintf("%s severity_rank >= %d", spcCategoricalOutlookType, defaultSPCConvectiveDiscussionMinimumSeverityRank),
+		Discussions:     records,
+	}
+	return &module.Output{ID: module.SPCConvectiveDiscussion, StanzaName: string(module.SPCConvectiveDiscussion), Value: value}, nil
+}
+
+func spcConvectiveDiscussionQualifyingPeriods(outlooks []weatherdata.ConvectiveOutlook, reportPeriod timeutil.Period) map[int]timeutil.Period {
+	periods := map[int]timeutil.Period{}
+	for _, outlook := range outlooks {
+		if outlook.OutlookType != spcCategoricalOutlookType {
+			continue
+		}
+		if outlook.SeverityRank == nil || *outlook.SeverityRank < defaultSPCConvectiveDiscussionMinimumSeverityRank {
+			continue
+		}
+		outlookPeriod := timeutil.Period{Start: outlook.ValidFrom, End: outlook.ValidTo}
+		if !outlookPeriod.IsValid() || !outlookPeriod.Overlaps(reportPeriod) {
+			continue
+		}
+		if existing, ok := periods[outlook.Day]; ok {
+			if outlookPeriod.Start.Before(existing.Start) {
+				existing.Start = outlookPeriod.Start
+			}
+			if outlookPeriod.End.After(existing.End) {
+				existing.End = outlookPeriod.End
+			}
+			periods[outlook.Day] = existing
+			continue
+		}
+		periods[outlook.Day] = outlookPeriod
+	}
+	return periods
+}
+
+func spcConvectiveDiscussionRecords(qualifyingPeriods map[int]timeutil.Period, discussions []weatherdata.ConvectiveOutlookDiscussion, timezone string) []SPCConvectiveDiscussionRecord {
+	records := make([]SPCConvectiveDiscussionRecord, 0, len(discussions))
+	for _, discussion := range discussions {
+		period, ok := qualifyingPeriods[discussion.Day]
+		if !ok {
+			continue
+		}
+		if discussion.Discussion == "" {
+			continue
+		}
+		records = append(records, SPCConvectiveDiscussionRecord{
+			Day:          discussion.Day,
+			PeriodBegins: friendlyPeriodBeginsLabel(period, timezone),
+			PeriodEnds:   friendlyPeriodEndsLabel(period, timezone),
+			Headline:     discussion.Headline,
+			Summary:      discussion.Summary,
+			Discussion:   discussion.Discussion,
+			UpdatedAt:    friendlyOptionalTime(discussion.UpdatedAt, timezone),
+		})
+	}
+	return records
+}

internal/briefing/spc_convective_discussion_module_test.go

@@ -0,0 +1,317 @@
+package briefing
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+func TestSPCConvectiveDiscussionModuleOmitsBelowThresholdButOutlookRemains(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := spcConvectiveDiscussionContext(2, []weatherdata.ConvectiveOutlookDiscussion{
+		spcDiscussion(1, "Lower risk", "General thunderstorms.", "No organized severe weather is expected.", "2026-05-29T08:30:00-05:00"),
+	})
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule(discussion) error = %v", err)
+	}
+	if output != nil {
+		t.Fatalf("discussion output = %#v, want omitted below threshold", output)
+	}
+
+	outlookOutput, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveOutlooks})
+	if err != nil {
+		t.Fatalf("BuildModule(outlooks) error = %v", err)
+	}
+	outlookValue := moduleValue[SPCConvectiveOutlooksModule](t, outlookOutput)
+	if !outlookValue.Checked || outlookValue.OutlookCount != 1 {
+		t.Fatalf("outlook value = %#v, want lower-risk outlook still emitted", outlookValue)
+	}
+}
+
+func TestSPCConvectiveDiscussionModuleIncludesEqualThresholdDiscussion(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := spcConvectiveDiscussionContext(3, []weatherdata.ConvectiveOutlookDiscussion{
+		spcDiscussion(1, "Severe storms possible", "Scattered severe storms are possible.", "A few storms may become severe during the afternoon.", "2026-05-29T08:30:00-05:00"),
+	})
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	if output == nil || output.ID != module.SPCConvectiveDiscussion || output.StanzaName != "spc_convective_discussion" {
+		t.Fatalf("output = %#v, want spc convective discussion stanza", output)
+	}
+	value := moduleValue[SPCConvectiveDiscussionModule](t, output)
+	if value.IncludedBecause != "categorical severity_rank >= 3" || len(value.Discussions) != 1 {
+		t.Fatalf("value = %#v, want threshold reason and one discussion", value)
+	}
+	discussion := value.Discussions[0]
+	if discussion.Day != 1 || discussion.Headline != "Severe storms possible" || discussion.Summary == "" || discussion.Discussion == "" {
+		t.Fatalf("discussion = %#v, want prompt-facing discussion fields", discussion)
+	}
+	if discussion.PeriodBegins != "2026-05-29 at 11:00 AM" || discussion.PeriodEnds != "2026-05-30 at 7:00 AM" {
+		t.Fatalf("Period = %q/%q, want qualifying outlook valid period", discussion.PeriodBegins, discussion.PeriodEnds)
+	}
+	if discussion.UpdatedAt != "2026-05-29 at 8:30 AM" {
+		t.Fatalf("UpdatedAt = %q, want friendly local time", discussion.UpdatedAt)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("Marshal() error = %v", err)
+	}
+	text := string(data)
+	for _, field := range []string{"included_because", "discussions", "period_begins", "period_ends", "headline", "summary", "discussion", "updated_at"} {
+		if !strings.Contains(text, field) {
+			t.Fatalf("json = %s, want field %s", text, field)
+		}
+	}
+	if strings.Contains(text, `"period":`) {
+		t.Fatalf("json = %s, want period_begins/period_ends instead of period", text)
+	}
+}
+
+func TestSPCConvectiveDiscussionModuleIncludesAboveThresholdDiscussion(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := spcConvectiveDiscussionContext(4, []weatherdata.ConvectiveOutlookDiscussion{
+		spcDiscussion(1, "Enhanced severe risk", "Numerous severe storms are possible.", "Severe storms may produce damaging winds.", "2026-05-29T09:15:00-05:00"),
+	})
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[SPCConvectiveDiscussionModule](t, output)
+	if len(value.Discussions) != 1 || value.Discussions[0].Headline != "Enhanced severe risk" {
+		t.Fatalf("value = %#v, want above-threshold discussion", value)
+	}
+}
+
+func TestSPCConvectiveDiscussionModuleIgnoresHighRankNonCategoricalOutlook(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	rank := 30
+	ctx := testModuleContext()
+	outlook := weatherdata.ConvectiveOutlook{
+		ID:           "day1-wind-30",
+		Day:          1,
+		OutlookType:  "wind",
+		Label:        "30%",
+		LabelText:    "30% Wind Risk",
+		SeverityRank: &rank,
+		ValidFrom:    mustParseModuleTime("2026-05-29T11:00:00-05:00"),
+		ValidTo:      mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+	}
+	ctx.Collected.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{
+		Outlooks: []weatherdata.ConvectiveOutlook{outlook},
+	}
+	ctx.Derived.SPCConvectiveOutlooks = []weatherdata.ConvectiveOutlook{outlook}
+	ctx.Derived.SPCConvectiveDiscussions = []weatherdata.ConvectiveOutlookDiscussion{
+		spcDiscussion(1, "Wind risk discussion", "High wind probabilities.", "This discussion should not be emitted from wind severity rank.", "2026-05-29T08:30:00-05:00"),
+	}
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	if output != nil {
+		t.Fatalf("output = %#v, want non-categorical outlook ignored for discussion threshold", output)
+	}
+}
+
+func TestSPCConvectiveDiscussionModuleRequiresCategoricalThresholdForMixedSameDayOutlooks(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	rank2 := 2
+	rank30 := 30
+	ctx := testModuleContext()
+	categorical := weatherdata.ConvectiveOutlook{
+		ID:           "day1-marginal",
+		Day:          1,
+		OutlookType:  "categorical",
+		Label:        "MRGL",
+		LabelText:    "Marginal Risk",
+		SeverityRank: &rank2,
+		ValidFrom:    mustParseModuleTime("2026-05-29T11:00:00-05:00"),
+		ValidTo:      mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+	}
+	wind := weatherdata.ConvectiveOutlook{
+		ID:           "day1-wind-30",
+		Day:          1,
+		OutlookType:  "wind",
+		Label:        "30%",
+		LabelText:    "30% Wind Risk",
+		SeverityRank: &rank30,
+		ValidFrom:    mustParseModuleTime("2026-05-29T11:00:00-05:00"),
+		ValidTo:      mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+	}
+	ctx.Collected.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{
+		Outlooks: []weatherdata.ConvectiveOutlook{categorical, wind},
+	}
+	ctx.Derived.SPCConvectiveOutlooks = []weatherdata.ConvectiveOutlook{categorical, wind}
+	ctx.Derived.SPCConvectiveDiscussions = []weatherdata.ConvectiveOutlookDiscussion{
+		spcDiscussion(1, "Mixed risk discussion", "Only wind is high.", "This discussion should not be emitted without categorical threshold.", "2026-05-29T08:30:00-05:00"),
+	}
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	if output != nil {
+		t.Fatalf("output = %#v, want mixed day omitted when categorical outlook is below threshold", output)
+	}
+}
+
+func TestSPCConvectiveDiscussionModuleIncludesOnlyQualifyingDays(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	rank2 := 2
+	rank4 := 4
+	ctx := testModuleContext()
+	ctx.Resolved.ValidPeriod.Start = mustParseModuleTime("2026-05-30T00:00:00-05:00")
+	ctx.Resolved.ValidPeriod.End = mustParseModuleTime("2026-05-31T00:00:00-05:00")
+	day1Outlook := weatherdata.ConvectiveOutlook{
+		ID:           "day1-marginal",
+		Day:          1,
+		OutlookType:  "categorical",
+		Label:        "MRGL",
+		LabelText:    "Marginal Risk",
+		SeverityRank: &rank2,
+		ValidFrom:    mustParseModuleTime("2026-05-29T11:00:00-05:00"),
+		ValidTo:      mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+	}
+	day2Outlook := weatherdata.ConvectiveOutlook{
+		ID:           "day2-enhanced",
+		Day:          2,
+		OutlookType:  "categorical",
+		Label:        "ENH",
+		LabelText:    "Enhanced Risk",
+		SeverityRank: &rank4,
+		ValidFrom:    mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+		ValidTo:      mustParseModuleTime("2026-05-31T07:00:00-05:00"),
+	}
+	ctx.Collected.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{
+		Outlooks: []weatherdata.ConvectiveOutlook{day1Outlook, day2Outlook},
+	}
+	ctx.Derived.SPCConvectiveOutlooks = []weatherdata.ConvectiveOutlook{day1Outlook, day2Outlook}
+	ctx.Derived.SPCConvectiveDiscussions = []weatherdata.ConvectiveOutlookDiscussion{
+		spcDiscussion(1, "Day 1 regional discussion", "Marginal risk discussion.", "Day 1 text should not be emitted.", "2026-05-29T08:30:00-05:00"),
+		spcDiscussion(2, "Day 2 regional discussion", "Enhanced risk discussion.", "Day 2 text should be emitted.", "2026-05-30T08:30:00-05:00"),
+	}
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[SPCConvectiveDiscussionModule](t, output)
+	if len(value.Discussions) != 1 {
+		t.Fatalf("Discussions = %#v, want only the qualifying day discussion", value.Discussions)
+	}
+	if value.Discussions[0].Day != 2 || value.Discussions[0].Headline != "Day 2 regional discussion" {
+		t.Fatalf("Discussions[0] = %#v, want day 2 discussion only", value.Discussions[0])
+	}
+	if value.Discussions[0].PeriodBegins != "2026-05-30 at 7:00 AM" || value.Discussions[0].PeriodEnds != "2026-05-31 at 7:00 AM" {
+		t.Fatalf("Period = %q/%q, want qualifying day 2 outlook period", value.Discussions[0].PeriodBegins, value.Discussions[0].PeriodEnds)
+	}
+}
+
+func TestSPCConvectiveDiscussionModuleOmitsNonOverlappingQualifyingOutlook(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	rank := 5
+	ctx := testModuleContext()
+	outlook := weatherdata.ConvectiveOutlook{
+		ID:           "day2-enhanced",
+		Day:          2,
+		OutlookType:  "categorical",
+		Label:        "ENH",
+		LabelText:    "Enhanced Risk",
+		SeverityRank: &rank,
+		ValidFrom:    mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+		ValidTo:      mustParseModuleTime("2026-05-31T07:00:00-05:00"),
+	}
+	ctx.Collected.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{
+		Outlooks: []weatherdata.ConvectiveOutlook{outlook},
+	}
+	ctx.Derived.SPCConvectiveOutlooks = []weatherdata.ConvectiveOutlook{outlook}
+	ctx.Derived.SPCConvectiveDiscussions = []weatherdata.ConvectiveOutlookDiscussion{
+		spcDiscussion(2, "Day 2 regional discussion", "Enhanced risk discussion.", "Day 2 text should not be emitted for today.", "2026-05-30T08:30:00-05:00"),
+	}
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	if output != nil {
+		t.Fatalf("output = %#v, want non-overlapping discussion omitted", output)
+	}
+}
+
+func TestSPCConvectiveDiscussionModuleOmitsMissingDiscussionText(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := spcConvectiveDiscussionContext(3, []weatherdata.ConvectiveOutlookDiscussion{
+		{Day: 1, Headline: "Severe storms possible", Summary: "Scattered severe storms are possible.", UpdatedAt: ptrModuleTime("2026-05-29T08:30:00-05:00")},
+	})
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	if output != nil {
+		t.Fatalf("output = %#v, want omitted when discussion text is missing", output)
+	}
+}
+
+func TestSPCConvectiveDiscussionModuleOmitsMissingSource(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	ctx.Collected.SPCConvectiveOutlooks = nil
+	ctx.Derived.SPCConvectiveOutlooks = nil
+	ctx.Derived.SPCConvectiveDiscussions = nil
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveDiscussion})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	if output != nil {
+		t.Fatalf("output = %#v, want omitted for missing optional source", output)
+	}
+}
+
+func spcConvectiveDiscussionContext(rank int, discussions []weatherdata.ConvectiveOutlookDiscussion) ModuleContext {
+	ctx := testModuleContext()
+	outlook := weatherdata.ConvectiveOutlook{
+		ID:           "day1-categorical",
+		Day:          1,
+		OutlookType:  "categorical",
+		Label:        "SLGT",
+		LabelText:    "Slight Risk",
+		SeverityRank: &rank,
+		ValidFrom:    mustParseModuleTime("2026-05-29T11:00:00-05:00"),
+		ValidTo:      mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+	}
+	ctx.Collected.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{
+		AsOf:     ptrModuleTime("2026-05-29T08:00:00-05:00"),
+		IssuedAt: ptrModuleTime("2026-05-29T07:45:00-05:00"),
+		Outlooks: []weatherdata.ConvectiveOutlook{outlook},
+	}
+	ctx.Derived.SPCConvectiveOutlooks = []weatherdata.ConvectiveOutlook{outlook}
+	ctx.Derived.SPCConvectiveDiscussions = discussions
+	return ctx
+}
+
+func spcDiscussion(day int, headline string, summary string, discussion string, updatedAt string) weatherdata.ConvectiveOutlookDiscussion {
+	return weatherdata.ConvectiveOutlookDiscussion{
+		Day:        day,
+		Headline:   headline,
+		Summary:    summary,
+		Discussion: discussion,
+		UpdatedAt:  ptrModuleTime(updatedAt),
+	}
+}
+
+func ptrModuleTime(value string) *time.Time {
+	parsed := mustParseModuleTime(value)
+	return &parsed
+}

internal/briefing/spc_convective_outlooks_module.go

@@ -0,0 +1,92 @@
+package briefing
+
+import (
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+type SPCConvectiveOutlooksModule struct {
+	Checked      bool                         `json:"checked"`
+	AsOf         string                       `json:"as_of,omitempty"`
+	IssuedAt     string                       `json:"issued_at,omitempty"`
+	LocationID   string                       `json:"location_id,omitempty"`
+	LocationName string                       `json:"location_name,omitempty"`
+	OutlookCount int                          `json:"outlook_count"`
+	Outlooks     []SPCConvectiveOutlookRecord `json:"outlooks,omitempty"`
+}
+
+type SPCConvectiveOutlookRecord struct {
+	Day              int    `json:"day,omitempty"`
+	OutlookType      string `json:"outlook_type,omitempty"`
+	Label            string `json:"label,omitempty"`
+	LabelText        string `json:"label_text,omitempty"`
+	PeriodBegins     string `json:"period_begins,omitempty"`
+	PeriodEnds       string `json:"period_ends,omitempty"`
+	IssuedAt         string `json:"issued_at,omitempty"`
+	ContainsLocation bool   `json:"contains_location"`
+	ImageURL         string `json:"image_url,omitempty"`
+}
+
+func buildSPCConvectiveOutlooksModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	value := SPCConvectiveOutlooksModule{}
+	run := ctx.Collected.SPCConvectiveOutlooks
+	if run != nil {
+		value.Checked = true
+		value.AsOf = friendlyOptionalTime(run.AsOf, ctx.Timezone)
+		value.IssuedAt = friendlyOptionalTime(run.IssuedAt, ctx.Timezone)
+		value.LocationID = run.LocationID
+		value.LocationName = run.LocationName
+	}
+	source, ok := sourceByName(ctx.Collected.SourceProvenance, string(module.SPCConvectiveOutlooks))
+	if value.Checked && value.AsOf == "" && ok && !source.FetchedAt.IsZero() {
+		value.AsOf = friendlyDateTimeLabel(source.FetchedAt, ctx.Timezone)
+	}
+	if value.Checked && value.IssuedAt == "" && ok {
+		value.IssuedAt = friendlyOptionalTime(source.IssuedAt, ctx.Timezone)
+	}
+
+	value.Outlooks = spcConvectiveOutlookRecords(ctx.Derived.SPCConvectiveOutlooks, ctx.Resolved.ValidPeriod, ctx.Timezone)
+	value.OutlookCount = len(value.Outlooks)
+	return &module.Output{ID: module.SPCConvectiveOutlooks, StanzaName: string(module.SPCConvectiveOutlooks), Value: value}, nil
+}
+
+func spcConvectiveOutlookRecords(outlooks []weatherdata.ConvectiveOutlook, reportPeriod timeutil.Period, timezone string) []SPCConvectiveOutlookRecord {
+	records := make([]SPCConvectiveOutlookRecord, 0, len(outlooks))
+	for _, outlook := range outlooks {
+		outlookPeriod := timeutil.Period{Start: outlook.ValidFrom, End: outlook.ValidTo}
+		if !outlookPeriod.IsValid() || !outlookPeriod.Overlaps(reportPeriod) {
+			continue
+		}
+		records = append(records, SPCConvectiveOutlookRecord{
+			Day:              outlook.Day,
+			OutlookType:      outlook.OutlookType,
+			Label:            outlook.Label,
+			LabelText:        outlook.LabelText,
+			PeriodBegins:     friendlyPeriodBeginsLabel(outlookPeriod, timezone),
+			PeriodEnds:       friendlyPeriodEndsLabel(outlookPeriod, timezone),
+			IssuedAt:         friendlyOptionalTime(outlook.IssuedAt, timezone),
+			ContainsLocation: outlook.ContainsLocation,
+			ImageURL:         outlook.ImageURL,
+		})
+	}
+	return records
+}
+
+func friendlyOptionalTime(value *time.Time, timezone string) string {
+	if value == nil {
+		return ""
+	}
+	return friendlyDateTimeLabel(*value, timezone)
+}
+
+func sourceByName(sources []weatherdata.Source, name string) (weatherdata.Source, bool) {
+	for _, source := range sources {
+		if source.Name == name {
+			return source, true
+		}
+	}
+	return weatherdata.Source{}, false
+}

internal/briefing/spc_convective_outlooks_module_test.go

@@ -0,0 +1,169 @@
+package briefing
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+func TestSPCConvectiveOutlooksModuleBuildsPromptSafeRiskProduct(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	rank := 3
+	asOf := mustParseModuleTime("2026-05-29T14:00:00Z")
+	issuedAt := mustParseModuleTime("2026-05-29T13:45:00Z")
+	expiresAt := mustParseModuleTime("2026-05-30T07:00:00-05:00")
+	outlook := weatherdata.ConvectiveOutlook{
+		ID:               "day1-categorical-slight",
+		Provider:         "spc",
+		Product:          "convective_outlook",
+		Day:              1,
+		OutlookType:      "categorical",
+		Label:            "SLGT",
+		LabelText:        "Slight Risk",
+		Forecaster:       "Smith",
+		SeverityRank:     &rank,
+		ValidFrom:        mustParseModuleTime("2026-05-29T11:00:00-05:00"),
+		ValidTo:          mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+		IssuedAt:         &issuedAt,
+		ExpiresAt:        &expiresAt,
+		SourceURL:        "https://www.spc.noaa.gov/products/outlook/day1otlk.html",
+		ImageURL:         "https://www.spc.noaa.gov/products/outlook/day1probotlk_2000_torn.gif",
+		ContainsLocation: true,
+		Geometry:         json.RawMessage(`{"type":"Polygon","coordinates":[]}`),
+	}
+	ctx.Collected.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{
+		LocationID:   "nws-lsx-grid-90-74",
+		LocationName: "St. Louis, MO",
+		AsOf:         &asOf,
+		IssuedAt:     &issuedAt,
+		Outlooks:     []weatherdata.ConvectiveOutlook{outlook},
+	}
+	ctx.Derived.SPCConvectiveOutlooks = []weatherdata.ConvectiveOutlook{outlook}
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveOutlooks})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	if output == nil || output.ID != module.SPCConvectiveOutlooks || output.StanzaName != "spc_convective_outlooks" {
+		t.Fatalf("output = %#v, want spc convective outlook output", output)
+	}
+	value := moduleValue[SPCConvectiveOutlooksModule](t, output)
+	if !value.Checked || value.OutlookCount != 1 || value.AsOf != "2026-05-29 at 9:00 AM" || value.IssuedAt != "2026-05-29 at 8:45 AM" {
+		t.Fatalf("SPCConvectiveOutlooksModule = %#v, want checked source timing and one outlook", value)
+	}
+	if value.LocationID != "nws-lsx-grid-90-74" || value.LocationName != "St. Louis, MO" {
+		t.Fatalf("source location = %q/%q, want Weather API location", value.LocationID, value.LocationName)
+	}
+	if len(value.Outlooks) != 1 {
+		t.Fatalf("Outlooks length = %d, want 1", len(value.Outlooks))
+	}
+	got := value.Outlooks[0]
+	if got.Day != 1 || got.OutlookType != "categorical" || got.Label != "SLGT" || got.LabelText != "Slight Risk" {
+		t.Fatalf("outlook = %#v, want categorical slight risk fields", got)
+	}
+	if got.PeriodBegins != "2026-05-29 at 11:00 AM" || got.PeriodEnds != "2026-05-30 at 7:00 AM" || got.IssuedAt != "2026-05-29 at 8:45 AM" {
+		t.Fatalf("outlook times = %#v, want friendly local labels", got)
+	}
+	if !got.ContainsLocation || got.ImageURL == "" {
+		t.Fatalf("outlook = %#v, want location flag and image URL", got)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("Marshal() error = %v", err)
+	}
+	text := string(data)
+	for _, field := range []string{"checked", "as_of", "issued_at", "location_id", "location_name", "outlook_count", "outlooks", "period_begins", "period_ends", "contains_location", "image_url"} {
+		if !strings.Contains(text, field) {
+			t.Fatalf("json = %s, want field %s", text, field)
+		}
+	}
+	for _, omitted := range []string{"geometry", "coordinates", "forecaster", "provider", "severity_rank", "expires_at", "source_url", "valid_start", "valid_end", `"period":`} {
+		if strings.Contains(text, omitted) {
+			t.Fatalf("json = %s, want prompt-safe outlook without %s", text, omitted)
+		}
+	}
+}
+
+func TestSPCConvectiveOutlooksModuleSkipsNonOverlappingOutlooks(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	rank := 5
+	outlook := weatherdata.ConvectiveOutlook{
+		ID:               "tomorrow-enhanced",
+		Day:              2,
+		OutlookType:      "categorical",
+		Label:            "ENH",
+		LabelText:        "Enhanced Risk",
+		SeverityRank:     &rank,
+		ValidFrom:        mustParseModuleTime("2026-05-30T07:00:00-05:00"),
+		ValidTo:          mustParseModuleTime("2026-05-31T07:00:00-05:00"),
+		ContainsLocation: true,
+	}
+	ctx.Collected.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{
+		AsOf:     ptrModuleTime("2026-05-29T14:00:00Z"),
+		Outlooks: []weatherdata.ConvectiveOutlook{outlook},
+	}
+	ctx.Derived.SPCConvectiveOutlooks = []weatherdata.ConvectiveOutlook{outlook}
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveOutlooks})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[SPCConvectiveOutlooksModule](t, output)
+	if value.OutlookCount != 0 || len(value.Outlooks) != 0 {
+		t.Fatalf("value = %#v, want non-overlapping outlook omitted", value)
+	}
+}
+
+func TestSPCConvectiveOutlooksModuleBuildsCheckedEmptyStanza(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	asOf := mustParseModuleTime("2026-05-29T14:00:00Z")
+	ctx.Collected.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{
+		LocationID:   "nws-lsx-grid-90-74",
+		LocationName: "St. Louis, MO",
+		AsOf:         &asOf,
+		Outlooks:     []weatherdata.ConvectiveOutlook{},
+	}
+	ctx.Derived.SPCConvectiveOutlooks = []weatherdata.ConvectiveOutlook{}
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveOutlooks})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[SPCConvectiveOutlooksModule](t, output)
+	if !value.Checked || value.OutlookCount != 0 || len(value.Outlooks) != 0 {
+		t.Fatalf("checked empty value = %#v, want checked source with no retained outlooks", value)
+	}
+	data, err := json.Marshal(output.Value)
+	if err != nil {
+		t.Fatalf("Marshal() error = %v", err)
+	}
+	if strings.Contains(string(data), "outlooks") {
+		t.Fatalf("json = %s, want empty outlook list omitted", string(data))
+	}
+}
+
+func TestSPCConvectiveOutlooksModuleBuildsUncheckedStanzaForMissingSource(t *testing.T) {
+	registry := MustDefaultModuleRegistry()
+	ctx := testModuleContext()
+	ctx.Collected.SPCConvectiveOutlooks = nil
+	ctx.Collected.SourceProvenance = []weatherdata.Source{{
+		Name:    string(module.SPCConvectiveOutlooks),
+		Missing: true,
+	}}
+	ctx.Derived.SPCConvectiveOutlooks = nil
+
+	output, err := registry.BuildModule(ctx, module.ConfigItem{ID: module.SPCConvectiveOutlooks})
+	if err != nil {
+		t.Fatalf("BuildModule() error = %v", err)
+	}
+	value := moduleValue[SPCConvectiveOutlooksModule](t, output)
+	if value.Checked || value.OutlookCount != 0 || value.AsOf != "" || value.IssuedAt != "" {
+		t.Fatalf("missing source value = %#v, want unchecked empty stanza", value)
+	}
+}

internal/briefing/storm.go

@@ -1,197 +0,0 @@
-package briefing
-
-import (
-	"fmt"
-
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
-)
-
-type Storm struct {
-	TimingWindow        timeutil.Period           `json:"timingWindow"`
-	EventHeadlines      []string                  `json:"eventHeadlines,omitempty"`
-	Hazards             []string                  `json:"hazards,omitempty"`
-	MostLikelyScenario  []string                  `json:"mostLikelyScenario,omitempty"`
-	ReasonableWorstCase []string                  `json:"reasonableWorstCase,omitempty"`
-	ConfidenceInputs    []string                  `json:"confidenceInputs,omitempty"`
-	WhatToWatchNext     []string                  `json:"whatToWatchNext,omitempty"`
-	RelevantAlerts      []forecast.AlertOverlap   `json:"relevantAlerts,omitempty"`
-	HourlyPeriods       []forecast.ForecastPeriod `json:"hourlyPeriods,omitempty"`
-	DailyPeriods        []forecast.ForecastPeriod `json:"dailyPeriods,omitempty"`
-	NarrativePeriods    []forecast.ForecastPeriod `json:"narrativePeriods,omitempty"`
-	WindowSummary       forecast.DaypartSummary   `json:"windowSummary"`
-	Discussion          DiscussionContext         `json:"discussion,omitempty"`
-	WeatherStory        *WeatherStoryContext      `json:"weatherStory,omitempty"`
-}
-
-func BuildStorm(ctx BuildContext) (Package, error) {
-	if ctx.Resolved.Definition.ID != report.Storm {
-		return Package{}, fmt.Errorf("storm briefing requires a storm report definition")
-	}
-	if ctx.Bundle == nil {
-		return Package{}, fmt.Errorf("forecast bundle is required")
-	}
-	period := ctx.Resolved.ValidPeriod
-	hourly := forecast.SelectHourlyPeriods(ctx.Bundle.Hourly, period)
-	narrative := forecast.SelectNarrativePeriods(ctx.Bundle, period)
-	daily := forecast.SelectHourlyPeriods(ctx.Bundle.Daily, period)
-	alerts := forecast.AlertOverlaps(ctx.Bundle.Alerts, period)
-	summary := forecast.SummarizeDaypart("storm window", period, hourly)
-	summary.AlertOverlaps = alerts
-
-	storm := &Storm{
-		TimingWindow:        period,
-		EventHeadlines:      stormHeadlines(alerts),
-		Hazards:             stormHazards(alerts, summary),
-		MostLikelyScenario:  mostLikelyStormScenario(hourly, narrative, summary),
-		ReasonableWorstCase: reasonableWorstCase(alerts, summary),
-		ConfidenceInputs:    stormConfidenceInputs(ctx.Bundle),
-		WhatToWatchNext:     stormWatchItems(alerts, summary, ctx.Bundle),
-		RelevantAlerts:      alerts,
-		HourlyPeriods:       hourly,
-		DailyPeriods:        daily,
-		NarrativePeriods:    narrative,
-		WindowSummary:       summary,
-		Discussion:          buildDiscussion(ctx.Bundle.Discussion),
-		WeatherStory:        buildWeatherStory(ctx.Bundle),
-	}
-	pkg := buildPackage(ctx)
-	pkg.Storm = storm
-	setRelevantAlertCount(&pkg.Metadata, len(alerts))
-	return pkg, nil
-}
-
-func stormHeadlines(alerts []forecast.AlertOverlap) []string {
-	var headlines []string
-	for _, alert := range alerts {
-		if alert.Headline != "" {
-			headlines = appendUnique(headlines, alert.Headline)
-			continue
-		}
-		if alert.Event != "" {
-			headlines = appendUnique(headlines, alert.Event)
-		}
-	}
-	if len(headlines) == 0 {
-		return []string{"No active alert headline overlaps the selected storm window."}
-	}
-	return headlines
-}
-
-func stormHazards(alerts []forecast.AlertOverlap, summary forecast.DaypartSummary) []string {
-	hazards := map[string]struct{}{}
-	for _, alert := range alerts {
-		if alert.Event != "" {
-			hazards[alert.Event] = struct{}{}
-		}
-	}
-	for _, hazard := range hazardsForIndicators(summary.Indicators) {
-		hazards[hazard] = struct{}{}
-	}
-	if summary.MaxPrecipitationProbability != nil && summary.MaxPrecipitationProbability.Value >= 50 {
-		hazards["precipitation"] = struct{}{}
-	}
-	if summary.PeakWindGust != nil && summary.PeakWindGust.Value >= 30 {
-		hazards["wind"] = struct{}{}
-	}
-	out := sortedSet(hazards)
-	if len(out) == 0 {
-		return []string{"No storm-specific hazard signal stands out in the selected source data."}
-	}
-	return out
-}
-
-func mostLikelyStormScenario(hourly []forecast.ForecastPeriod, narrative []forecast.ForecastPeriod, summary forecast.DaypartSummary) []string {
-	var items []string
-	if summary.DominantCondition != "" {
-		items = append(items, "Dominant hourly condition: "+summary.DominantCondition+".")
-	}
-	if summary.MaxPrecipitationProbability != nil {
-		items = append(items, fmt.Sprintf("Peak precipitation chance is near %.0f%% around %s.", summary.MaxPrecipitationProbability.Value, summary.MaxPrecipitationProbability.Time.Format("15:04")))
-	}
-	if summary.PeakWindGust != nil {
-		items = append(items, fmt.Sprintf("Peak wind gust is near %.0f mph around %s.", summary.PeakWindGust.Value, summary.PeakWindGust.Time.Format("15:04")))
-	}
-	for _, period := range narrative {
-		if period.TextDescription != "" {
-			items = append(items, "Narrative guidance: "+period.TextDescription)
-			break
-		}
-	}
-	if len(items) == 0 && len(hourly) > 0 {
-		items = append(items, "Hourly forecast periods are available, but no focused storm signal is prominent.")
-	}
-	if len(items) == 0 {
-		items = append(items, "No active storm signal is evident from the selected forecast window.")
-	}
-	return items
-}
-
-func reasonableWorstCase(alerts []forecast.AlertOverlap, summary forecast.DaypartSummary) []string {
-	var items []string
-	for _, alert := range alerts {
-		label := alert.Event
-		if label == "" {
-			label = alert.Headline
-		}
-		if label != "" {
-			items = appendUnique(items, "Alert scenario to consider: "+label+".")
-		}
-	}
-	if summary.Indicators.Wind {
-		items = appendUnique(items, "Wind impacts could be higher where stronger gusts occur.")
-	}
-	if summary.Indicators.Snow || summary.Indicators.Ice {
-		items = appendUnique(items, "Wintry precipitation could create travel impacts if it overlaps the event window.")
-	}
-	if len(items) == 0 {
-		items = append(items, "No clear reasonable worst-case signal is represented in the selected data.")
-	}
-	return items
-}
-
-func stormConfidenceInputs(bundle *forecast.Bundle) []string {
-	var items []string
-	if bundle == nil {
-		return []string{"No source bundle was available for confidence context."}
-	}
-	if bundle.Discussion != nil {
-		items = appendUnique(items, bundle.Discussion.KeyMessages...)
-		if bundle.Discussion.ShortTerm != nil && bundle.Discussion.ShortTerm.Text != "" {
-			items = appendUnique(items, "Short-term discussion is available for confidence context.")
-		}
-	}
-	if bundle.WeatherStory != nil && len(bundle.WeatherStory.Raw) > 0 {
-		items = appendUnique(items, "Weather story source is available.")
-	}
-	for _, warning := range bundle.Warnings {
-		if warning.Code != "" {
-			items = appendUnique(items, "Source warning: "+warning.Code+".")
-		}
-	}
-	if len(items) == 0 {
-		items = append(items, "No explicit confidence or uncertainty signal was available from the selected source context.")
-	}
-	return items
-}
-
-func stormWatchItems(alerts []forecast.AlertOverlap, summary forecast.DaypartSummary, bundle *forecast.Bundle) []string {
-	var items []string
-	if len(alerts) > 0 {
-		items = append(items, "Watch for alert extensions, cancellations, or upgrades.")
-	}
-	if summary.MaxPrecipitationProbability != nil {
-		items = append(items, "Watch precipitation timing and probability trends.")
-	}
-	if summary.PeakWindGust != nil {
-		items = append(items, "Watch wind gust trends.")
-	}
-	if bundle != nil && bundle.Discussion != nil {
-		items = append(items, "Watch the next forecast discussion update for confidence changes.")
-	}
-	if len(items) == 0 {
-		items = append(items, "Watch for new alerts or stronger wording if the weather pattern changes.")
-	}
-	return appendUnique(nil, items...)
-}

internal/briefing/storm_test.go

@@ -1,158 +0,0 @@
-package briefing
-
-import (
-	"encoding/json"
-	"strings"
-	"testing"
-	"time"
-
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
-)
-
-func TestStormBriefingWithActiveAlert(t *testing.T) {
-	location := mustLocation(t)
-	resolved, err := report.Resolve(report.Storm, report.ResolveRequest{
-		Now:        mustParse("2026-05-29T05:00:00-05:00"),
-		Location:   location,
-		StormStart: mustParse("2026-05-29T06:00:00-05:00"),
-		StormEnd:   mustParse("2026-05-29T12:00:00-05:00"),
-	})
-	if err != nil {
-		t.Fatalf("resolve storm: %v", err)
-	}
-	precip := 80.0
-	gust := 42.0
-	bundle := &forecast.Bundle{
-		Hourly: &forecast.ForecastRun{Periods: []forecast.ForecastPeriod{{
-			StartTime:                         mustParse("2026-05-29T07:00:00-05:00"),
-			EndTime:                           mustParse("2026-05-29T08:00:00-05:00"),
-			TextDescription:                   "Severe thunderstorms and gusty wind",
-			ProbabilityOfPrecipitationPercent: &precip,
-			WindGustMph:                       &gust,
-		}}},
-		Daily: &forecast.ForecastRun{Periods: []forecast.ForecastPeriod{{
-			StartTime:       mustParse("2026-05-29T06:00:00-05:00"),
-			EndTime:         mustParse("2026-05-29T18:00:00-05:00"),
-			TextDescription: "Storms likely.",
-		}}},
-		Narrative: &forecast.ForecastRun{Periods: []forecast.ForecastPeriod{{
-			StartTime:       mustParse("2026-05-29T06:00:00-05:00"),
-			EndTime:         mustParse("2026-05-29T18:00:00-05:00"),
-			TextDescription: "Damaging wind possible in stronger storms.",
-		}}},
-		Alerts: &forecast.AlertRun{Alerts: []json.RawMessage{
-			json.RawMessage(`{"event":"Severe Thunderstorm Warning","headline":"Severe storms near Testville","severity":"Severe","effective":"2026-05-29T06:30:00-05:00","expires":"2026-05-29T08:30:00-05:00"}`),
-		}},
-		Discussion: &forecast.Discussion{
-			Product:     "discussion",
-			KeyMessages: []string{"Storms may intensify quickly."},
-			ShortTerm:   &forecast.DiscussionSection{Text: "Short-term storm coverage peaks this morning."},
-			LongTerm:    &forecast.DiscussionSection{Text: "Long-term pattern stays unsettled after the event."},
-		},
-		WeatherStory: &forecast.WeatherStory{Raw: json.RawMessage(`{"headline":"Storm risk"}`)},
-		Sources:      []forecast.Source{{Name: "hourly", FetchedAt: time.Now()}},
-	}
-
-	pkg, err := BuildStorm(BuildContext{Resolved: resolved, Bundle: bundle, Units: "us", Timezone: "America/Chicago"})
-	if err != nil {
-		t.Fatalf("BuildStorm() error = %v", err)
-	}
-
-	if pkg.Metadata.ReportID != report.Storm {
-		t.Fatalf("ReportID = %q, want storm", pkg.Metadata.ReportID)
-	}
-	if pkg.Storm == nil {
-		t.Fatal("Storm = nil")
-	}
-	if len(pkg.Storm.RelevantAlerts) != 1 || len(pkg.Storm.EventHeadlines) != 1 {
-		t.Fatalf("alerts/headlines = %#v/%#v, want alert inputs", pkg.Storm.RelevantAlerts, pkg.Storm.EventHeadlines)
-	}
-	if !pkg.Storm.TimingWindow.Start.Equal(resolved.ValidPeriod.Start) || !pkg.Storm.TimingWindow.End.Equal(resolved.ValidPeriod.End) {
-		t.Fatalf("TimingWindow = %#v, want resolved valid period %#v", pkg.Storm.TimingWindow, resolved.ValidPeriod)
-	}
-	if !strings.Contains(strings.Join(pkg.Storm.Hazards, ","), "Severe Thunderstorm Warning") {
-		t.Fatalf("Hazards = %#v, want alert event", pkg.Storm.Hazards)
-	}
-	if len(pkg.Storm.HourlyPeriods) != 1 || len(pkg.Storm.DailyPeriods) != 1 || len(pkg.Storm.NarrativePeriods) != 1 {
-		t.Fatalf("selected periods hourly/daily/narrative = %d/%d/%d, want selected source periods", len(pkg.Storm.HourlyPeriods), len(pkg.Storm.DailyPeriods), len(pkg.Storm.NarrativePeriods))
-	}
-	if pkg.Storm.WeatherStory == nil {
-		t.Fatal("WeatherStory = nil, want available story context")
-	}
-	if pkg.Storm.Discussion.ShortTerm != "Short-term storm coverage peaks this morning." {
-		t.Fatalf("Discussion.ShortTerm = %q, want short-term AFD narrative", pkg.Storm.Discussion.ShortTerm)
-	}
-	if pkg.Storm.Discussion.LongTerm != "Long-term pattern stays unsettled after the event." {
-		t.Fatalf("Discussion.LongTerm = %q, want long-term AFD narrative", pkg.Storm.Discussion.LongTerm)
-	}
-	if len(pkg.Storm.WhatToWatchNext) == 0 {
-		t.Fatal("WhatToWatchNext length = 0, want watch inputs")
-	}
-}
-
-func TestStormBriefingWithDiscussionButNoAlert(t *testing.T) {
-	location := mustLocation(t)
-	resolved, err := report.Resolve(report.Storm, report.ResolveRequest{
-		Now:        mustParse("2026-05-29T05:00:00-05:00"),
-		Location:   location,
-		StormStart: mustParse("2026-05-29T06:00:00-05:00"),
-		StormEnd:   mustParse("2026-05-29T12:00:00-05:00"),
-	})
-	if err != nil {
-		t.Fatalf("resolve storm: %v", err)
-	}
-	bundle := &forecast.Bundle{
-		Hourly:     &forecast.ForecastRun{Periods: []forecast.ForecastPeriod{{StartTime: mustParse("2026-05-29T07:00:00-05:00"), EndTime: mustParse("2026-05-29T08:00:00-05:00"), TextDescription: "Showers"}}},
-		Alerts:     &forecast.AlertRun{},
-		Discussion: &forecast.Discussion{Product: "discussion", KeyMessages: []string{"Confidence is moderate."}},
-		Sources:    []forecast.Source{{Name: "hourly", FetchedAt: time.Now()}},
-	}
-
-	pkg, err := BuildStorm(BuildContext{Resolved: resolved, Bundle: bundle, Units: "us", Timezone: "America/Chicago"})
-	if err != nil {
-		t.Fatalf("BuildStorm() error = %v", err)
-	}
-
-	if len(pkg.Storm.RelevantAlerts) != 0 {
-		t.Fatalf("RelevantAlerts length = %d, want 0", len(pkg.Storm.RelevantAlerts))
-	}
-	if !strings.Contains(strings.Join(pkg.Storm.EventHeadlines, " "), "No active alert") {
-		t.Fatalf("EventHeadlines = %#v, want no-alert fallback", pkg.Storm.EventHeadlines)
-	}
-	if !strings.Contains(strings.Join(pkg.Storm.ConfidenceInputs, " "), "Confidence is moderate") {
-		t.Fatalf("ConfidenceInputs = %#v, want discussion key message", pkg.Storm.ConfidenceInputs)
-	}
-	if len(pkg.Storm.MostLikelyScenario) == 0 {
-		t.Fatal("MostLikelyScenario length = 0, want forecast scenario inputs")
-	}
-}
-
-func TestStormBriefingQuietWindow(t *testing.T) {
-	location := mustLocation(t)
-	resolved, err := report.Resolve(report.Storm, report.ResolveRequest{
-		Now:        mustParse("2026-05-29T05:00:00-05:00"),
-		Location:   location,
-		StormStart: mustParse("2026-05-29T06:00:00-05:00"),
-		StormEnd:   mustParse("2026-05-29T12:00:00-05:00"),
-	})
-	if err != nil {
-		t.Fatalf("resolve storm: %v", err)
-	}
-	bundle := &forecast.Bundle{
-		Hourly:  &forecast.ForecastRun{Periods: []forecast.ForecastPeriod{{StartTime: mustParse("2026-05-29T07:00:00-05:00"), EndTime: mustParse("2026-05-29T08:00:00-05:00"), TextDescription: "Clear"}}},
-		Sources: []forecast.Source{{Name: "hourly", FetchedAt: time.Now()}},
-	}
-
-	pkg, err := BuildStorm(BuildContext{Resolved: resolved, Bundle: bundle, Units: "us", Timezone: "America/Chicago"})
-	if err != nil {
-		t.Fatalf("BuildStorm() error = %v", err)
-	}
-
-	if len(pkg.Storm.Hazards) != 1 || !strings.Contains(pkg.Storm.Hazards[0], "No storm-specific") {
-		t.Fatalf("Hazards = %#v, want quiet hazard fallback", pkg.Storm.Hazards)
-	}
-	if !strings.Contains(strings.Join(pkg.Storm.WhatToWatchNext, " "), "new alerts") {
-		t.Fatalf("WhatToWatchNext = %#v, want watch fallback", pkg.Storm.WhatToWatchNext)
-	}
-}

internal/briefing/summary_helpers.go

@@ -7,108 +7,38 @@ import (
 	"strings"
 
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
 )
 
-type Daily struct {
-	BottomLine          BottomLine                `json:"bottomLine"`
-	Dayparts            []forecast.DaypartSummary `json:"dayparts"`
-	RelevantAlerts      []forecast.AlertOverlap   `json:"relevantAlerts,omitempty"`
-	OutdoorWindows      OutdoorWindows            `json:"outdoorWindows"`
-	Planning            *TomorrowPlanning         `json:"planning,omitempty"`
-	NarrativePeriods    []forecast.ForecastPeriod `json:"narrativePeriods,omitempty"`
-	Discussion          DiscussionContext         `json:"discussion,omitempty"`
-	WeatherStory        *WeatherStoryContext      `json:"weatherStory,omitempty"`
-	ForecastSummaryDate string                    `json:"forecastSummaryDate"`
-}
-
-type BottomLine struct {
-	Summary              string               `json:"summary"`
-	Hazards              []string             `json:"hazards,omitempty"`
-	Temperature          forecast.Range       `json:"temperature,omitempty"`
-	MaxPrecipProbability *forecast.TimedValue `json:"maxPrecipitationProbability,omitempty"`
-	PeakWindGust         *forecast.TimedValue `json:"peakWindGust,omitempty"`
-}
-
 type OutdoorWindows struct {
-	Best  *OutdoorWindow `json:"best,omitempty"`
+	Best  *OutdoorWindow
-	Worst *OutdoorWindow `json:"worst,omitempty"`
+	Worst *OutdoorWindow
 }
 
 type OutdoorWindow struct {
-	Daypart string   `json:"daypart"`
+	Daypart string
-	Start   string   `json:"start"`
+	Period  timeutil.Period
-	End     string   `json:"end"`
+	Reasons []string
-	Reasons []string `json:"reasons,omitempty"`
+	Score   float64
-	Score   float64  `json:"score"`
 }
 
 type TomorrowPlanning struct {
-	MorningReadiness             []string `json:"morningReadiness,omitempty"`
+	MorningReadiness             []string
-	CommuteSchoolWorkdayConcerns []string `json:"commuteSchoolWorkdayConcerns,omitempty"`
+	CommuteSchoolWorkdayConcerns []string
-	OvernightChangeWatch         []string `json:"overnightChangeWatch,omitempty"`
+	OvernightChangeWatch         []string
 }
 
-type DiscussionContext struct {
+type morningCommuteOvernightPlanning struct {
-	Product     string   `json:"product,omitempty"`
+	MorningReadiness             []string
-	KeyMessages []string `json:"keyMessages,omitempty"`
+	CommuteSchoolWorkdayConcerns []string
-	ShortTerm   string   `json:"shortTerm,omitempty"`
+	OvernightChangeWatch         []string
-	LongTerm    string   `json:"longTerm,omitempty"`
 }
 
-type WeatherStoryContext struct {
+type TodayPlanning struct {
-	Available bool   `json:"available"`
+	MorningReadiness             []string
-	Summary   string `json:"summary,omitempty"`
+	CommuteSchoolWorkdayConcerns []string
-}
+	OutdoorPlanning              []string
-
+	LateDayChangeWatch           []string
-func BuildDaily(ctx BuildContext, summary *forecast.DailySummary) (Package, error) {
-	if ctx.Resolved.Definition.ID != report.DailyToday && ctx.Resolved.Definition.ID != report.DailyTomorrow {
-		return Package{}, fmt.Errorf("daily briefing requires a daily report definition")
-	}
-	if summary == nil {
-		return Package{}, fmt.Errorf("daily forecast summary is required")
-	}
-	pkg := buildPackage(ctx)
-	pkg.Daily = &Daily{
-		BottomLine:          buildBottomLine(summary),
-		Dayparts:            summary.Dayparts,
-		RelevantAlerts:      summary.AlertOverlaps,
-		OutdoorWindows:      buildOutdoorWindows(summary.Dayparts),
-		NarrativePeriods:    summary.NarrativePeriods,
-		Discussion:          buildDiscussion(summary.Discussion),
-		WeatherStory:        buildWeatherStory(ctx.Bundle),
-		ForecastSummaryDate: summary.Date,
-	}
-	setRelevantAlertCount(&pkg.Metadata, len(summary.AlertOverlaps))
-	if ctx.Resolved.Definition.ID == report.DailyTomorrow {
-		pkg.Daily.Planning = buildTomorrowPlanning(summary)
-	}
-	return pkg, nil
-}
-
-func buildBottomLine(summary *forecast.DailySummary) BottomLine {
-	bottomLine := BottomLine{}
-	conditions := map[string]struct{}{}
-	hazards := map[string]struct{}{}
-	for _, daypart := range summary.Dayparts {
-		addRange(&bottomLine.Temperature, daypart.Temperature)
-		maxTimedValue(&bottomLine.MaxPrecipProbability, daypart.MaxPrecipitationProbability)
-		maxTimedValue(&bottomLine.PeakWindGust, daypart.PeakWindGust)
-		if daypart.DominantCondition != "" {
-			conditions[daypart.DominantCondition] = struct{}{}
-		}
-		for _, hazard := range hazardsForIndicators(daypart.Indicators) {
-			hazards[hazard] = struct{}{}
-		}
-	}
-	for _, alert := range summary.AlertOverlaps {
-		if alert.Event != "" {
-			hazards[alert.Event] = struct{}{}
-		}
-	}
-	bottomLine.Hazards = sortedSet(hazards)
-	bottomLine.Summary = bottomLineText(sortedSet(conditions), bottomLine.Hazards)
-	return bottomLine
 }
 
 func buildOutdoorWindows(dayparts []forecast.DaypartSummary) OutdoorWindows {
@@ -131,8 +61,60 @@ func buildOutdoorWindows(dayparts []forecast.DaypartSummary) OutdoorWindows {
 	return OutdoorWindows{Best: best, Worst: worst}
 }
 
+func buildTodayPlanning(summary *forecast.DailySummary) *TodayPlanning {
+	planning := &TodayPlanning{}
+	morning := daypartNamed(summary.Dayparts, "morning")
+	if morning != nil {
+		planning.MorningReadiness = append(planning.MorningReadiness, readinessNotes(*morning)...)
+	}
+	if len(planning.MorningReadiness) == 0 {
+		planning.MorningReadiness = append(planning.MorningReadiness, "Morning weather looks routine based on the available hourly forecast.")
+	}
+
+	for _, daypart := range summary.Dayparts {
+		if daypart.Name == "overnight" || daypart.Name == "evening" {
+			continue
+		}
+		planning.CommuteSchoolWorkdayConcerns = appendUnique(planning.CommuteSchoolWorkdayConcerns, concernNotes(daypart)...)
+	}
+	for _, alert := range summary.AlertOverlaps {
+		if alert.Event != "" {
+			planning.CommuteSchoolWorkdayConcerns = appendUnique(planning.CommuteSchoolWorkdayConcerns, "Active alert to plan around: "+alert.Event+".")
+		}
+	}
+	if len(planning.CommuteSchoolWorkdayConcerns) == 0 {
+		planning.CommuteSchoolWorkdayConcerns = append(planning.CommuteSchoolWorkdayConcerns, "No major commute, school, or workday weather concerns stand out in the available forecast.")
+	}
+
+	planning.OutdoorPlanning = append(planning.OutdoorPlanning, outdoorPlanningNotes(summary.Dayparts)...)
+	if len(planning.OutdoorPlanning) == 0 {
+		planning.OutdoorPlanning = append(planning.OutdoorPlanning, "No standout outdoor weather constraints are evident in the available forecast.")
+	}
+
+	for _, name := range []string{"afternoon", "evening"} {
+		daypart := daypartNamed(summary.Dayparts, name)
+		if daypart != nil {
+			planning.LateDayChangeWatch = appendUnique(planning.LateDayChangeWatch, lateDayWatchNotes(*daypart)...)
+		}
+	}
+	if len(planning.LateDayChangeWatch) == 0 {
+		planning.LateDayChangeWatch = append(planning.LateDayChangeWatch, "Watch for forecast timing or intensity adjustments later today.")
+	}
+
+	return planning
+}
+
 func buildTomorrowPlanning(summary *forecast.DailySummary) *TomorrowPlanning {
-	planning := &TomorrowPlanning{}
+	base := buildMorningCommuteOvernightPlanning(summary)
+	return &TomorrowPlanning{
+		MorningReadiness:             append([]string(nil), base.MorningReadiness...),
+		CommuteSchoolWorkdayConcerns: append([]string(nil), base.CommuteSchoolWorkdayConcerns...),
+		OvernightChangeWatch:         append([]string(nil), base.OvernightChangeWatch...),
+	}
+}
+
+func buildMorningCommuteOvernightPlanning(summary *forecast.DailySummary) *morningCommuteOvernightPlanning {
+	planning := &morningCommuteOvernightPlanning{}
 	morning := daypartNamed(summary.Dayparts, "morning")
 	if morning != nil {
 		planning.MorningReadiness = append(planning.MorningReadiness, readinessNotes(*morning)...)
@@ -167,6 +149,18 @@ func buildTomorrowPlanning(summary *forecast.DailySummary) *TomorrowPlanning {
 	return planning
 }
 
+func outdoorPlanningNotes(dayparts []forecast.DaypartSummary) []string {
+	windows := buildOutdoorWindows(dayparts)
+	var notes []string
+	if windows.Best != nil {
+		notes = append(notes, fmt.Sprintf("Best outdoor window: %s (%s).", titleWord(windows.Best.Daypart), strings.Join(windows.Best.Reasons, ", ")))
+	}
+	if windows.Worst != nil && (windows.Best == nil || windows.Worst.Daypart != windows.Best.Daypart) {
+		notes = append(notes, fmt.Sprintf("Toughest outdoor window: %s (%s).", titleWord(windows.Worst.Daypart), strings.Join(windows.Worst.Reasons, ", ")))
+	}
+	return appendUnique(nil, notes...)
+}
+
 func readinessNotes(daypart forecast.DaypartSummary) []string {
 	notes := []string{}
 	if daypart.MaxPrecipitationProbability != nil && daypart.MaxPrecipitationProbability.Value >= 50 {
@@ -187,6 +181,27 @@ func readinessNotes(daypart forecast.DaypartSummary) []string {
 	return appendUnique(nil, notes...)
 }
 
+func lateDayWatchNotes(daypart forecast.DaypartSummary) []string {
+	notes := []string{}
+	prefix := titleWord(daypart.Name)
+	if prefix == "" {
+		prefix = "Late-day"
+	}
+	if daypart.MaxPrecipitationProbability != nil && daypart.MaxPrecipitationProbability.Value >= 30 {
+		notes = append(notes, fmt.Sprintf("%s precipitation timing may shift; current peak is near %.0f%%.", prefix, daypart.MaxPrecipitationProbability.Value))
+	}
+	if daypart.PeakWindGust != nil && daypart.PeakWindGust.Value >= 30 {
+		notes = append(notes, fmt.Sprintf("%s gusts may reach %.0f mph.", prefix, daypart.PeakWindGust.Value))
+	}
+	if daypart.Indicators.Snow || daypart.Indicators.Ice {
+		notes = append(notes, prefix+" wintry weather could affect late-day travel.")
+	}
+	if len(daypart.AlertOverlaps) > 0 {
+		notes = append(notes, prefix+" alert timing could affect late-day plans.")
+	}
+	return appendUnique(nil, notes...)
+}
+
 func concernNotes(daypart forecast.DaypartSummary) []string {
 	notes := []string{}
 	prefix := titleWord(daypart.Name)
@@ -240,30 +255,6 @@ func daypartNamed(dayparts []forecast.DaypartSummary, name string) *forecast.Day
 	return nil
 }
 
-func buildDiscussion(discussion *forecast.Discussion) DiscussionContext {
-	if discussion == nil {
-		return DiscussionContext{}
-	}
-	ctx := DiscussionContext{
-		Product:     discussion.Product,
-		KeyMessages: discussion.KeyMessages,
-	}
-	if discussion.ShortTerm != nil {
-		ctx.ShortTerm = discussion.ShortTerm.Text
-	}
-	if discussion.LongTerm != nil {
-		ctx.LongTerm = discussion.LongTerm.Text
-	}
-	return ctx
-}
-
-func buildWeatherStory(bundle *forecast.Bundle) *WeatherStoryContext {
-	if bundle == nil || bundle.WeatherStory == nil || len(bundle.WeatherStory.Raw) == 0 {
-		return nil
-	}
-	return &WeatherStoryContext{Available: true, Summary: string(bundle.WeatherStory.Raw)}
-}
-
 func scoreOutdoorWindow(daypart forecast.DaypartSummary) OutdoorWindow {
 	score := 0.0
 	reasons := []string{}
@@ -297,27 +288,12 @@ func scoreOutdoorWindow(daypart forecast.DaypartSummary) OutdoorWindow {
 	}
 	return OutdoorWindow{
 		Daypart: daypart.Name,
-		Start:   daypart.Period.Start.Format("15:04"),
+		Period:  daypart.Period,
-		End:     daypart.Period.End.Format("15:04"),
 		Reasons: dedupe(reasons),
 		Score:   math.Round(score*10) / 10,
 	}
 }
 
-func bottomLineText(conditions []string, hazards []string) string {
-	if len(conditions) == 0 && len(hazards) == 0 {
-		return "Quiet weather is expected."
-	}
-	parts := []string{}
-	if len(conditions) > 0 {
-		parts = append(parts, "Conditions: "+strings.Join(conditions, "; "))
-	}
-	if len(hazards) > 0 {
-		parts = append(parts, "Watch points: "+strings.Join(hazards, "; "))
-	}
-	return strings.Join(parts, ". ") + "."
-}
-
 func hazardsForIndicators(indicators forecast.Indicators) []string {
 	var hazards []string
 	if indicators.Snow {

internal/briefing/three_day.go

@@ -1,128 +0,0 @@
-package briefing
-
-import (
-	"fmt"
-	"sort"
-	"strings"
-
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
-)
-
-type ThreeDay struct {
-	Days           []OutlookDay            `json:"days"`
-	RelevantAlerts []forecast.AlertOverlap `json:"relevantAlerts,omitempty"`
-	Discussion     DiscussionContext       `json:"discussion,omitempty"`
-	WeatherStory   *WeatherStoryContext    `json:"weatherStory,omitempty"`
-}
-
-type OutlookDay struct {
-	Date                        string                    `json:"date"`
-	Period                      timeutil.Period           `json:"period"`
-	OverallCharacter            string                    `json:"overallCharacter"`
-	Temperature                 forecast.Range            `json:"temperature,omitempty"`
-	MaxPrecipitationProbability *forecast.TimedValue      `json:"maxPrecipitationProbability,omitempty"`
-	PeakWindGust                *forecast.TimedValue      `json:"peakWindGust,omitempty"`
-	Risks                       []string                  `json:"risks,omitempty"`
-	OutdoorWindows              OutdoorWindows            `json:"outdoorWindows"`
-	RelevantAlerts              []forecast.AlertOverlap   `json:"relevantAlerts,omitempty"`
-	Dayparts                    []forecast.DaypartSummary `json:"dayparts"`
-}
-
-func BuildThreeDay(ctx BuildContext, summaries []forecast.DailySummary) (Package, error) {
-	if ctx.Resolved.Definition.ID != report.ThreeDay {
-		return Package{}, fmt.Errorf("3-day briefing requires a 3-day report definition")
-	}
-	if len(summaries) == 0 {
-		return Package{}, fmt.Errorf("3-day forecast summaries are required")
-	}
-	pkg := buildPackage(ctx)
-	pkg.ThreeDay = &ThreeDay{
-		Discussion:   buildDiscussion(summaries[0].Discussion),
-		WeatherStory: buildWeatherStory(ctx.Bundle),
-	}
-	for _, summary := range summaries {
-		day := buildOutlookDay(summary)
-		pkg.ThreeDay.Days = append(pkg.ThreeDay.Days, day)
-	}
-	pkg.ThreeDay.RelevantAlerts = collectOutlookAlerts(pkg.ThreeDay.Days)
-	setRelevantAlertCount(&pkg.Metadata, len(pkg.ThreeDay.RelevantAlerts))
-	return pkg, nil
-}
-
-func collectOutlookAlerts(days []OutlookDay) []forecast.AlertOverlap {
-	alerts := map[string]forecast.AlertOverlap{}
-	for _, day := range days {
-		for _, alert := range day.RelevantAlerts {
-			key := alert.Event
-			if key == "" {
-				key = alert.Headline
-			}
-			if key != "" {
-				alerts[key] = alert
-			}
-		}
-	}
-	keys := make([]string, 0, len(alerts))
-	for key := range alerts {
-		keys = append(keys, key)
-	}
-	sort.Strings(keys)
-	out := make([]forecast.AlertOverlap, 0, len(keys))
-	for _, key := range keys {
-		out = append(out, alerts[key])
-	}
-	return out
-}
-
-func buildOutlookDay(summary forecast.DailySummary) OutlookDay {
-	day := OutlookDay{
-		Date:           summary.Date,
-		Period:         summary.Period,
-		OutdoorWindows: buildOutdoorWindows(summary.Dayparts),
-		RelevantAlerts: summary.AlertOverlaps,
-		Dayparts:       summary.Dayparts,
-	}
-	conditions := map[string]struct{}{}
-	risks := map[string]struct{}{}
-	for _, daypart := range summary.Dayparts {
-		addRange(&day.Temperature, daypart.Temperature)
-		maxTimedValue(&day.MaxPrecipitationProbability, daypart.MaxPrecipitationProbability)
-		maxTimedValue(&day.PeakWindGust, daypart.PeakWindGust)
-		if daypart.DominantCondition != "" {
-			conditions[daypart.DominantCondition] = struct{}{}
-		}
-		for _, risk := range hazardsForIndicators(daypart.Indicators) {
-			risks[risk] = struct{}{}
-		}
-		if daypart.MaxPrecipitationProbability != nil && daypart.MaxPrecipitationProbability.Value >= 50 {
-			risks["precipitation"] = struct{}{}
-		}
-		if daypart.PeakWindGust != nil && daypart.PeakWindGust.Value >= 30 {
-			risks["wind"] = struct{}{}
-		}
-	}
-	for _, alert := range summary.AlertOverlaps {
-		if alert.Event != "" {
-			risks[alert.Event] = struct{}{}
-		}
-	}
-	day.Risks = sortedSet(risks)
-	day.OverallCharacter = outlookCharacter(sortedSet(conditions), day.Risks)
-	return day
-}
-
-func outlookCharacter(conditions []string, risks []string) string {
-	if len(conditions) == 0 && len(risks) == 0 {
-		return "Quiet weather is expected."
-	}
-	parts := []string{}
-	if len(conditions) > 0 {
-		parts = append(parts, strings.Join(conditions, "; "))
-	}
-	if len(risks) > 0 {
-		parts = append(parts, "risks: "+strings.Join(risks, "; "))
-	}
-	return strings.Join(parts, ". ") + "."
-}

internal/briefing/three_day_test.go

@@ -1,94 +0,0 @@
-package briefing
-
-import (
-	"strings"
-	"testing"
-
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
-)
-
-func TestThreeDayBriefingBuildsOutlookDays(t *testing.T) {
-	location := mustLocation(t)
-	resolved, err := report.Resolve(report.ThreeDay, report.ResolveRequest{
-		Now:      mustParse("2026-05-29T06:00:00-05:00"),
-		Location: location,
-	})
-	if err != nil {
-		t.Fatalf("resolve 3-day: %v", err)
-	}
-	precip := 70.0
-	gust := 35.0
-	summaries := []forecast.DailySummary{
-		{
-			Date: "2026-05-29",
-			Period: timeutil.Period{
-				Start: mustParse("2026-05-29T06:00:00-05:00"),
-				End:   mustParse("2026-05-30T00:00:00-05:00"),
-			},
-			Dayparts: []forecast.DaypartSummary{
-				{
-					Name:              "morning",
-					DominantCondition: "Showers and thunderstorms",
-					MaxPrecipitationProbability: &forecast.TimedValue{
-						Value: precip,
-						Time:  mustParse("2026-05-29T09:00:00-05:00"),
-					},
-					PeakWindGust: &forecast.TimedValue{
-						Value: gust,
-						Time:  mustParse("2026-05-29T10:00:00-05:00"),
-					},
-					Indicators: forecast.Indicators{Wind: true},
-				},
-			},
-			AlertOverlaps: []forecast.AlertOverlap{{Event: "Flood Watch"}},
-			Discussion: &forecast.Discussion{
-				Product:     "discussion",
-				KeyMessages: []string{"Unsettled stretch."},
-				ShortTerm:   &forecast.DiscussionSection{Text: "Short-term rain chances remain focused today."},
-				LongTerm:    &forecast.DiscussionSection{Text: "Long-term warmth builds into the weekend."},
-			},
-		},
-		{
-			Date: "2026-05-30",
-			Period: timeutil.Period{
-				Start: mustParse("2026-05-30T00:00:00-05:00"),
-				End:   mustParse("2026-05-31T00:00:00-05:00"),
-			},
-			Dayparts: []forecast.DaypartSummary{{Name: "afternoon", DominantCondition: "Clear"}},
-		},
-	}
-
-	pkg, err := BuildThreeDay(BuildContext{
-		Resolved: resolved,
-		Units:    "us",
-		Timezone: "America/Chicago",
-	}, summaries)
-	if err != nil {
-		t.Fatalf("BuildThreeDay() error = %v", err)
-	}
-
-	if pkg.Metadata.ReportID != report.ThreeDay {
-		t.Fatalf("ReportID = %q, want three_day", pkg.Metadata.ReportID)
-	}
-	if pkg.ThreeDay == nil {
-		t.Fatal("ThreeDay = nil")
-	}
-	if len(pkg.ThreeDay.Days) != 2 {
-		t.Fatalf("Days length = %d, want 2", len(pkg.ThreeDay.Days))
-	}
-	first := pkg.ThreeDay.Days[0]
-	if !strings.Contains(first.OverallCharacter, "Showers") || !strings.Contains(strings.Join(first.Risks, ","), "wind") {
-		t.Fatalf("first day = %#v, want conditions and risks", first)
-	}
-	if len(pkg.ThreeDay.RelevantAlerts) != 1 {
-		t.Fatalf("RelevantAlerts length = %d, want 1", len(pkg.ThreeDay.RelevantAlerts))
-	}
-	if pkg.ThreeDay.Discussion.ShortTerm != "Short-term rain chances remain focused today." {
-		t.Fatalf("Discussion.ShortTerm = %q, want short-term AFD narrative", pkg.ThreeDay.Discussion.ShortTerm)
-	}
-	if pkg.ThreeDay.Discussion.LongTerm != "Long-term warmth builds into the weekend." {
-		t.Fatalf("Discussion.LongTerm = %q, want long-term AFD narrative", pkg.ThreeDay.Discussion.LongTerm)
-	}
-}

internal/briefing/today_planning_module.go

@@ -0,0 +1,26 @@
+package briefing
+
+import "gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+
+type TodayPlanningModule struct {
+	MorningReadiness             []string `json:"morning_readiness,omitempty"`
+	CommuteSchoolWorkdayConcerns []string `json:"commute_school_workday_concerns,omitempty"`
+	OutdoorPlanning              []string `json:"outdoor_planning,omitempty"`
+	LateDayChangeWatch           []string `json:"late_day_change_watch,omitempty"`
+}
+
+func buildTodayPlanningModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	summary := ctx.Derived.FirstDailySummary()
+	if summary == nil {
+		return &module.Output{ID: module.TodayPlanning, StanzaName: "today_planning", Value: TodayPlanningModule{}}, nil
+	}
+	planning := buildTodayPlanning(summary)
+	value := TodayPlanningModule{}
+	if planning != nil {
+		value.MorningReadiness = append([]string(nil), planning.MorningReadiness...)
+		value.CommuteSchoolWorkdayConcerns = append([]string(nil), planning.CommuteSchoolWorkdayConcerns...)
+		value.OutdoorPlanning = append([]string(nil), planning.OutdoorPlanning...)
+		value.LateDayChangeWatch = append([]string(nil), planning.LateDayChangeWatch...)
+	}
+	return &module.Output{ID: module.TodayPlanning, StanzaName: "today_planning", Value: value}, nil
+}

internal/briefing/tomorrow_planning_module.go

@@ -0,0 +1,24 @@
+package briefing
+
+import "gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+
+type TomorrowPlanningModule struct {
+	MorningReadiness             []string `json:"morning_readiness,omitempty"`
+	CommuteSchoolWorkdayConcerns []string `json:"commute_school_workday_concerns,omitempty"`
+	OvernightChangeWatch         []string `json:"overnight_change_watch,omitempty"`
+}
+
+func buildTomorrowPlanningModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	summary := ctx.Derived.FirstDailySummary()
+	if summary == nil {
+		return &module.Output{ID: module.TomorrowPlanning, StanzaName: "tomorrow_planning", Value: TomorrowPlanningModule{}}, nil
+	}
+	planning := buildTomorrowPlanning(summary)
+	value := TomorrowPlanningModule{}
+	if planning != nil {
+		value.MorningReadiness = append([]string(nil), planning.MorningReadiness...)
+		value.CommuteSchoolWorkdayConcerns = append([]string(nil), planning.CommuteSchoolWorkdayConcerns...)
+		value.OvernightChangeWatch = append([]string(nil), planning.OvernightChangeWatch...)
+	}
+	return &module.Output{ID: module.TomorrowPlanning, StanzaName: "tomorrow_planning", Value: value}, nil
+}

internal/briefing/weather_story_module.go

@@ -0,0 +1,44 @@
+package briefing
+
+import (
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+)
+
+type WeatherStoryModule struct {
+	Available    bool       `json:"available"`
+	OfficeID     string     `json:"office_id,omitempty"`
+	PeriodBegins string     `json:"period_begins,omitempty"`
+	PeriodEnds   string     `json:"period_ends,omitempty"`
+	UpdatedAt    *time.Time `json:"updated_at,omitempty"`
+	Title        string     `json:"title,omitempty"`
+	Description  string     `json:"description,omitempty"`
+	AltText      string     `json:"alt_text,omitempty"`
+	Priority     bool       `json:"priority"`
+	Order        int        `json:"order"`
+	DownloadURL  string     `json:"download_url,omitempty"`
+}
+
+func buildWeatherStoryModule(ctx ModuleContext, _ any) (*module.Output, error) {
+	story := ctx.Collected.WeatherStory
+	if story == nil {
+		return nil, nil
+	}
+	period := timeutil.Period{Start: story.StartTime, End: story.EndTime}
+	value := WeatherStoryModule{
+		Available:    true,
+		OfficeID:     story.OfficeID,
+		PeriodBegins: friendlyPeriodBeginsLabel(period, ctx.Timezone),
+		PeriodEnds:   friendlyPeriodEndsLabel(period, ctx.Timezone),
+		UpdatedAt:    copyTime(story.UpdatedAt),
+		Title:        story.Title,
+		Description:  story.Description,
+		AltText:      story.AltText,
+		Priority:     story.Priority,
+		Order:        story.Order,
+		DownloadURL:  story.DownloadURL,
+	}
+	return &module.Output{ID: module.WeatherStory, StanzaName: "weather_story", Value: value}, nil
+}

internal/briefing/weekend.go

@@ -1,121 +0,0 @@
-package briefing
-
-import (
-	"fmt"
-	"strings"
-
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
-)
-
-type Weekend struct {
-	Days           []OutlookDay            `json:"days"`
-	Planning       WeekendPlanning         `json:"planning"`
-	RelevantAlerts []forecast.AlertOverlap `json:"relevantAlerts,omitempty"`
-	Discussion     DiscussionContext       `json:"discussion,omitempty"`
-	WeatherStory   *WeatherStoryContext    `json:"weatherStory,omitempty"`
-}
-
-type WeekendPlanning struct {
-	BestOutdoorWindows  []OutdoorWindow `json:"bestOutdoorWindows,omitempty"`
-	WorstWeatherWindows []OutdoorWindow `json:"worstWeatherWindows,omitempty"`
-	RainStormTiming     []string        `json:"rainStormTiming,omitempty"`
-	ComfortConcerns     []string        `json:"comfortConcerns,omitempty"`
-	UncertaintyInputs   []string        `json:"uncertaintyInputs,omitempty"`
-}
-
-func BuildWeekend(ctx BuildContext, summaries []forecast.DailySummary) (Package, error) {
-	if ctx.Resolved.Definition.ID != report.Weekend {
-		return Package{}, fmt.Errorf("weekend briefing requires a weekend report definition")
-	}
-	if len(summaries) == 0 {
-		return Package{}, fmt.Errorf("weekend forecast summaries are required")
-	}
-	pkg := buildPackage(ctx)
-	pkg.Weekend = &Weekend{
-		Discussion:   buildDiscussion(summaries[0].Discussion),
-		WeatherStory: buildWeatherStory(ctx.Bundle),
-	}
-	for _, summary := range summaries {
-		pkg.Weekend.Days = append(pkg.Weekend.Days, buildOutlookDay(summary))
-	}
-	pkg.Weekend.RelevantAlerts = collectOutlookAlerts(pkg.Weekend.Days)
-	setRelevantAlertCount(&pkg.Metadata, len(pkg.Weekend.RelevantAlerts))
-	pkg.Weekend.Planning = buildWeekendPlanning(pkg.Weekend.Days, pkg.Weekend.Discussion, ctx.Bundle)
-	return pkg, nil
-}
-
-func buildWeekendPlanning(days []OutlookDay, discussion DiscussionContext, bundle *forecast.Bundle) WeekendPlanning {
-	planning := WeekendPlanning{}
-	for _, day := range days {
-		if day.OutdoorWindows.Best != nil {
-			window := *day.OutdoorWindows.Best
-			window.Daypart = day.Date + " " + window.Daypart
-			planning.BestOutdoorWindows = append(planning.BestOutdoorWindows, window)
-		}
-		if day.OutdoorWindows.Worst != nil {
-			window := *day.OutdoorWindows.Worst
-			window.Daypart = day.Date + " " + window.Daypart
-			planning.WorstWeatherWindows = append(planning.WorstWeatherWindows, window)
-		}
-		for _, daypart := range day.Dayparts {
-			planning.RainStormTiming = appendUnique(planning.RainStormTiming, weekendRainStormNotes(day.Date, daypart)...)
-			planning.ComfortConcerns = appendUnique(planning.ComfortConcerns, weekendComfortNotes(day.Date, daypart)...)
-		}
-	}
-	planning.UncertaintyInputs = appendUnique(planning.UncertaintyInputs, discussion.KeyMessages...)
-	if discussion.ShortTerm != "" {
-		planning.UncertaintyInputs = appendUnique(planning.UncertaintyInputs, "Short-term discussion available for confidence context.")
-	}
-	if discussion.LongTerm != "" {
-		planning.UncertaintyInputs = appendUnique(planning.UncertaintyInputs, "Long-term discussion available for uncertainty context.")
-	}
-	if bundle != nil {
-		for _, warning := range bundle.Warnings {
-			if warning.Code != "" {
-				planning.UncertaintyInputs = appendUnique(planning.UncertaintyInputs, "Source warning: "+warning.Code+".")
-			}
-		}
-	}
-	if len(planning.RainStormTiming) == 0 {
-		planning.RainStormTiming = append(planning.RainStormTiming, "No focused rain or storm timing stands out in the available weekend forecast.")
-	}
-	if len(planning.ComfortConcerns) == 0 {
-		planning.ComfortConcerns = append(planning.ComfortConcerns, "No major heat, cold, or wind comfort concern stands out in the available weekend forecast.")
-	}
-	if len(planning.UncertaintyInputs) == 0 {
-		planning.UncertaintyInputs = append(planning.UncertaintyInputs, "No explicit confidence or uncertainty signal was available from the selected source context.")
-	}
-	return planning
-}
-
-func weekendRainStormNotes(date string, daypart forecast.DaypartSummary) []string {
-	notes := []string{}
-	label := weekendWindowLabel(date, daypart.Name)
-	if daypart.MaxPrecipitationProbability != nil && daypart.MaxPrecipitationProbability.Value >= 30 {
-		notes = append(notes, fmt.Sprintf("%s precipitation chance peaks near %.0f%%.", label, daypart.MaxPrecipitationProbability.Value))
-	}
-	return notes
-}
-
-func weekendComfortNotes(date string, daypart forecast.DaypartSummary) []string {
-	notes := []string{}
-	label := weekendWindowLabel(date, daypart.Name)
-	if daypart.Indicators.Heat {
-		notes = append(notes, label+" heat may affect outdoor comfort.")
-	}
-	if daypart.Indicators.Cold {
-		notes = append(notes, label+" cold may affect outdoor comfort.")
-	}
-	if daypart.PeakWindGust != nil && daypart.PeakWindGust.Value >= 25 {
-		notes = append(notes, fmt.Sprintf("%s gusts may reach %.0f mph.", label, daypart.PeakWindGust.Value))
-	}
-	return notes
-}
-
-func weekendWindowLabel(date string, daypart string) string {
-	if daypart == "" {
-		return date
-	}
-	return strings.TrimSpace(date + " " + daypart)
-}

internal/briefing/weekend_test.go

@@ -1,99 +0,0 @@
-package briefing
-
-import (
-	"strings"
-	"testing"
-
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
-)
-
-func TestWeekendBriefingBuildsPlanningInputs(t *testing.T) {
-	location := mustLocation(t)
-	resolved, err := report.Resolve(report.Weekend, report.ResolveRequest{
-		Now:      mustParse("2026-05-29T08:00:00-05:00"),
-		Location: location,
-	})
-	if err != nil {
-		t.Fatalf("resolve weekend: %v", err)
-	}
-	precip := 70.0
-	gust := 32.0
-	summaries := []forecast.DailySummary{
-		{
-			Date: "2026-05-30",
-			Period: timeutil.Period{
-				Start: mustParse("2026-05-30T00:00:00-05:00"),
-				End:   mustParse("2026-05-31T00:00:00-05:00"),
-			},
-			Dayparts: []forecast.DaypartSummary{
-				{
-					Name:              "afternoon",
-					DominantCondition: "Showers and thunderstorms",
-					Period: timeutil.Period{
-						Start: mustParse("2026-05-30T12:00:00-05:00"),
-						End:   mustParse("2026-05-30T18:00:00-05:00"),
-					},
-					MaxPrecipitationProbability: &forecast.TimedValue{
-						Value: precip,
-						Time:  mustParse("2026-05-30T15:00:00-05:00"),
-					},
-					PeakWindGust: &forecast.TimedValue{
-						Value: gust,
-						Time:  mustParse("2026-05-30T16:00:00-05:00"),
-					},
-					Indicators: forecast.Indicators{Wind: true},
-					HourlyPeriods: []forecast.ForecastPeriod{
-						{
-							StartTime:       mustParse("2026-05-30T15:00:00-05:00"),
-							EndTime:         mustParse("2026-05-30T16:00:00-05:00"),
-							TextDescription: "Showers and thunderstorms",
-						},
-					},
-				},
-			},
-			AlertOverlaps: []forecast.AlertOverlap{{Event: "Flood Watch"}},
-			Discussion: &forecast.Discussion{
-				Product:     "discussion",
-				KeyMessages: []string{"Timing may shift."},
-				ShortTerm:   &forecast.DiscussionSection{Text: "Short-term showers exit before the weekend."},
-				LongTerm:    &forecast.DiscussionSection{Text: "Long-term weekend rain timing remains uncertain."},
-			},
-		},
-	}
-
-	pkg, err := BuildWeekend(BuildContext{
-		Resolved: resolved,
-		Units:    "us",
-		Timezone: "America/Chicago",
-	}, summaries)
-	if err != nil {
-		t.Fatalf("BuildWeekend() error = %v", err)
-	}
-
-	if pkg.Metadata.ReportID != report.Weekend {
-		t.Fatalf("ReportID = %q, want weekend", pkg.Metadata.ReportID)
-	}
-	if pkg.Weekend == nil {
-		t.Fatal("Weekend = nil")
-	}
-	if len(pkg.Weekend.Days) != 1 {
-		t.Fatalf("Days length = %d, want 1", len(pkg.Weekend.Days))
-	}
-	if len(pkg.Weekend.Planning.WorstWeatherWindows) == 0 {
-		t.Fatalf("WorstWeatherWindows = %#v, want weather window", pkg.Weekend.Planning.WorstWeatherWindows)
-	}
-	if !strings.Contains(strings.Join(pkg.Weekend.Planning.RainStormTiming, " "), "precipitation") {
-		t.Fatalf("RainStormTiming = %#v, want precipitation timing", pkg.Weekend.Planning.RainStormTiming)
-	}
-	if len(pkg.Weekend.Planning.UncertaintyInputs) == 0 {
-		t.Fatal("UncertaintyInputs length = 0, want discussion context")
-	}
-	if pkg.Weekend.Discussion.ShortTerm != "Short-term showers exit before the weekend." {
-		t.Fatalf("Discussion.ShortTerm = %q, want short-term AFD narrative", pkg.Weekend.Discussion.ShortTerm)
-	}
-	if pkg.Weekend.Discussion.LongTerm != "Long-term weekend rain timing remains uncertain." {
-		t.Fatalf("Discussion.LongTerm = %q, want long-term AFD narrative", pkg.Weekend.Discussion.LongTerm)
-	}
-}

internal/changes/daily.go

@@ -1,14 +1,15 @@
-// Package changes compares structured briefing snapshots.
+// Package changes compares structured module snapshots.
 package changes
 
 import (
 	"fmt"
 	"math"
 	"sort"
+	"strconv"
+	"strings"
 	"time"
 
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
 )
 
 type Thresholds struct {
@@ -25,83 +26,170 @@ type Change struct {
 	Current  string `json:"current,omitempty"`
 }
 
-func CompareDaily(previous briefing.Package, current briefing.Package, thresholds Thresholds) ([]Change, error) {
+func CompareDaily(previous module.Snapshot, current module.Snapshot, thresholds Thresholds) ([]Change, error) {
-	if previous.Daily == nil {
+	previousSummary, err := requiredStanza[dailySummaryStanza](previous, "derived_daily_summary")
-		return nil, fmt.Errorf("previous daily briefing is required")
+	if err != nil {
+		return nil, fmt.Errorf("previous daily summary: %w", err)
 	}
-	if current.Daily == nil {
+	currentSummary, err := requiredStanza[dailySummaryStanza](current, "derived_daily_summary")
-		return nil, fmt.Errorf("current daily briefing is required")
+	if err != nil {
+		return nil, fmt.Errorf("current daily summary: %w", err)
 	}
+	previousDayparts, err := requiredStanza[map[string]daypartSummaryStanza](previous, "derived_daypart_summaries")
+	if err != nil {
+		return nil, fmt.Errorf("previous daypart summaries: %w", err)
+	}
+	currentDayparts, err := requiredStanza[map[string]daypartSummaryStanza](current, "derived_daypart_summaries")
+	if err != nil {
+		return nil, fmt.Errorf("current daypart summaries: %w", err)
+	}
+	previousAlerts, _, err := module.StanzaValue[alertDigestStanza](previous, "alert_digest")
+	if err != nil {
+		return nil, err
+	}
+	currentAlerts, _, err := module.StanzaValue[alertDigestStanza](current, "alert_digest")
+	if err != nil {
+		return nil, err
+	}
+	previousTiming, previousHasTiming, err := module.StanzaValue[precipTimingStanza](previous, "precip_timing")
+	if err != nil {
+		return nil, err
+	}
+	currentTiming, currentHasTiming, err := module.StanzaValue[precipTimingStanza](current, "precip_timing")
+	if err != nil {
+		return nil, err
+	}
+
 	var changes []Change
-	changes = append(changes, compareTemperature(previous.Daily.BottomLine.Temperature, current.Daily.BottomLine.Temperature, thresholds.TemperatureDegrees)...)
+	changes = append(changes, compareTemperatureValues("Low", previousSummary.LowTempF, currentSummary.LowTempF, thresholds.TemperatureDegrees)...)
-	changes = append(changes, comparePrecipitation(previous.Daily.BottomLine.MaxPrecipProbability, current.Daily.BottomLine.MaxPrecipProbability, thresholds)...)
+	changes = append(changes, compareTemperatureValues("High", previousSummary.HighTempF, currentSummary.HighTempF, thresholds.TemperatureDegrees)...)
-	changes = append(changes, compareWind(previous.Daily.BottomLine.PeakWindGust, current.Daily.BottomLine.PeakWindGust, float64(thresholds.WindGustMilesPerHour))...)
+	changes = append(changes, comparePrecipitationValues(previousSummary.DailyPrecipitationProbability, currentSummary.DailyPrecipitationProbability, thresholds.PrecipProbabilityPoints, "")...)
-	changes = append(changes, compareAlerts(previous.Daily.RelevantAlerts, current.Daily.RelevantAlerts)...)
+	if previousHasTiming && currentHasTiming {
-	changes = append(changes, compareIndicators(aggregateIndicators(previous.Daily.Dayparts), aggregateIndicators(current.Daily.Dayparts))...)
+		changes = append(changes, comparePrecipTiming(previousTiming.MaxPopTime, currentTiming.MaxPopTime, thresholds.PrecipTimingShiftMinutes, "")...)
+	}
+	changes = append(changes, compareWindValues(previousSummary.MaxWindGustMph, currentSummary.MaxWindGustMph, thresholds.WindGustMilesPerHour, "")...)
+	changes = append(changes, compareAlerts(previousAlerts.Relevant, currentAlerts.Relevant)...)
+	changes = append(changes, compareIndicators(aggregateIndicators(previousDayparts), aggregateIndicators(currentDayparts), "")...)
+	sortChanges(changes)
 	return changes, nil
 }
 
-func compareTemperature(previous forecast.Range, current forecast.Range, threshold float64) []Change {
+type dailySummaryStanza struct {
-	var changes []Change
+	Date                          string `json:"date,omitempty"`
-	if previous.Min != nil && current.Min != nil && differenceAtLeast(*previous.Min, *current.Min, threshold) {
+	HighTempF                     *int   `json:"high_temp_f,omitempty"`
-		changes = append(changes, Change{
+	LowTempF                      *int   `json:"low_temp_f,omitempty"`
-			Type:     "temperature_shift",
+	DailyPrecipitationProbability *int   `json:"daily_precipitation_probability,omitempty"`
-			Message:  fmt.Sprintf("Low temperature changed from %.0f to %.0f.", *previous.Min, *current.Min),
+	MaxWindGustMph                *int   `json:"max_wind_gust_mph,omitempty"`
-			Previous: fmt.Sprintf("%.0f", *previous.Min),
-			Current:  fmt.Sprintf("%.0f", *current.Min),
-		})
-	}
-	if previous.Max != nil && current.Max != nil && differenceAtLeast(*previous.Max, *current.Max, threshold) {
-		changes = append(changes, Change{
-			Type:     "temperature_shift",
-			Message:  fmt.Sprintf("High temperature changed from %.0f to %.0f.", *previous.Max, *current.Max),
-			Previous: fmt.Sprintf("%.0f", *previous.Max),
-			Current:  fmt.Sprintf("%.0f", *current.Max),
-		})
-	}
-	return changes
 }
 
-func comparePrecipitation(previous *forecast.TimedValue, current *forecast.TimedValue, thresholds Thresholds) []Change {
+type daypartSummaryStanza struct {
+	Date           string `json:"date,omitempty"`
+	PeriodBegins   string `json:"period_begins,omitempty"`
+	PeriodEnds     string `json:"period_ends,omitempty"`
+	TempRangeF     string `json:"temp_range_f,omitempty"`
+	MaxPopPercent  *int   `json:"max_pop_percent,omitempty"`
+	MaxPopTime     string `json:"max_pop_time,omitempty"`
+	MaxWindGustMph *int   `json:"max_wind_gust_mph,omitempty"`
+	Snow           bool   `json:"snow,omitempty"`
+	Ice            bool   `json:"ice,omitempty"`
+}
+
+type precipTimingStanza struct {
+	MaxPopPercent *int   `json:"max_pop_percent,omitempty"`
+	MaxPopTime    string `json:"max_pop_time,omitempty"`
+}
+
+type alertDigestStanza struct {
+	Relevant []alertSummaryStanza `json:"relevant,omitempty"`
+}
+
+type alertSummaryStanza struct {
+	Event    string `json:"event,omitempty"`
+	Headline string `json:"headline,omitempty"`
+}
+
+type indicators struct {
+	Snow bool
+	Ice  bool
+}
+
+func requiredStanza[T any](snapshot module.Snapshot, name string) (T, error) {
+	value, ok, err := module.StanzaValue[T](snapshot, name)
+	if err != nil {
+		return value, err
+	}
+	if !ok {
+		return value, fmt.Errorf("stanza %q is required", name)
+	}
+	return value, nil
+}
+
+func compareTemperatureValues(label string, previous *int, current *int, threshold float64) []Change {
 	if previous == nil || current == nil {
 		return nil
 	}
-	var changes []Change
+	if !differenceAtLeast(float64(*previous), float64(*current), threshold) {
-	previousCategory := precipitationCategory(previous.Value)
-	currentCategory := precipitationCategory(current.Value)
-	if previousCategory != currentCategory || differenceAtLeast(previous.Value, current.Value, float64(thresholds.PrecipProbabilityPoints)) {
-		changes = append(changes, Change{
-			Type:     "precip_probability_change",
-			Message:  fmt.Sprintf("Peak precipitation chance changed from %.0f%% (%s) to %.0f%% (%s).", previous.Value, previousCategory, current.Value, currentCategory),
-			Previous: fmt.Sprintf("%.0f%% %s", previous.Value, previousCategory),
-			Current:  fmt.Sprintf("%.0f%% %s", current.Value, currentCategory),
-		})
-	}
-	shiftMinutes := int(math.Abs(current.Time.Sub(previous.Time).Minutes()))
-	if thresholds.PrecipTimingShiftMinutes > 0 && shiftMinutes >= thresholds.PrecipTimingShiftMinutes {
-		changes = append(changes, Change{
-			Type:     "precip_timing_shift",
-			Message:  fmt.Sprintf("Peak precipitation timing shifted from %s to %s.", clock(previous.Time), clock(current.Time)),
-			Previous: clock(previous.Time),
-			Current:  clock(current.Time),
-		})
-	}
-	return changes
-}
-
-func compareWind(previous *forecast.TimedValue, current *forecast.TimedValue, threshold float64) []Change {
-	if previous == nil || current == nil || !differenceAtLeast(previous.Value, current.Value, threshold) {
 		return nil
 	}
 	return []Change{{
-		Type:     "wind_gust_change",
+		Type:     "temperature_shift",
-		Message:  fmt.Sprintf("Peak wind gust changed from %.0f mph to %.0f mph.", previous.Value, current.Value),
+		Message:  fmt.Sprintf("%s temperature changed from %d to %d.", label, *previous, *current),
-		Previous: fmt.Sprintf("%.0f mph", previous.Value),
+		Previous: fmt.Sprintf("%d", *previous),
-		Current:  fmt.Sprintf("%.0f mph", current.Value),
+		Current:  fmt.Sprintf("%d", *current),
 	}}
 }
 
-func compareAlerts(previous []forecast.AlertOverlap, current []forecast.AlertOverlap) []Change {
+func comparePrecipitationValues(previous *int, current *int, threshold int, prefix string) []Change {
+	if previous == nil || current == nil {
+		return nil
+	}
+	previousCategory := precipitationCategory(float64(*previous))
+	currentCategory := precipitationCategory(float64(*current))
+	if previousCategory == currentCategory && !differenceAtLeast(float64(*previous), float64(*current), float64(threshold)) {
+		return nil
+	}
+	changeType := prefix + "precip_probability_change"
+	return []Change{{
+		Type:     changeType,
+		Message:  fmt.Sprintf("Peak precipitation chance changed from %d%% (%s) to %d%% (%s).", *previous, previousCategory, *current, currentCategory),
+		Previous: fmt.Sprintf("%d%% %s", *previous, previousCategory),
+		Current:  fmt.Sprintf("%d%% %s", *current, currentCategory),
+	}}
+}
+
+func comparePrecipTiming(previous string, current string, thresholdMinutes int, prefix string) []Change {
+	if thresholdMinutes <= 0 || previous == "" || current == "" || previous == current {
+		return nil
+	}
+	previousTime, previousOK := parseClock(previous)
+	currentTime, currentOK := parseClock(current)
+	if !previousOK || !currentOK {
+		return nil
+	}
+	if int(math.Abs(currentTime.Sub(previousTime).Minutes())) < thresholdMinutes {
+		return nil
+	}
+	return []Change{{
+		Type:     prefix + "precip_timing_shift",
+		Message:  fmt.Sprintf("Peak precipitation timing shifted from %s to %s.", previous, current),
+		Previous: previous,
+		Current:  current,
+	}}
+}
+
+func compareWindValues(previous *int, current *int, threshold int, prefix string) []Change {
+	if previous == nil || current == nil || !differenceAtLeast(float64(*previous), float64(*current), float64(threshold)) {
+		return nil
+	}
+	return []Change{{
+		Type:     prefix + "wind_gust_change",
+		Message:  fmt.Sprintf("Peak wind gust changed from %d mph to %d mph.", *previous, *current),
+		Previous: fmt.Sprintf("%d mph", *previous),
+		Current:  fmt.Sprintf("%d mph", *current),
+	}}
+}
+
+func compareAlerts(previous []alertSummaryStanza, current []alertSummaryStanza) []Change {
 	previousSet := alertSet(previous)
 	currentSet := alertSet(current)
 	var changes []Change
@@ -119,7 +207,7 @@ func compareAlerts(previous []forecast.AlertOverlap, current []forecast.AlertOve
 	return changes
 }
 
-func compareIndicators(previous forecast.Indicators, current forecast.Indicators) []Change {
+func compareIndicators(previous indicators, current indicators, prefix string) []Change {
 	var changes []Change
 	for _, item := range []struct {
 		name     string
@@ -132,7 +220,7 @@ func compareIndicators(previous forecast.Indicators, current forecast.Indicators
 		if item.previous == item.current {
 			continue
 		}
-		changeType := item.name + "_risk_change"
+		changeType := prefix + item.name + "_risk_change"
 		if item.current {
 			changes = append(changes, Change{Type: changeType, Message: fmt.Sprintf("%s risk is now present.", item.name), Current: "present"})
 		} else {
@@ -142,16 +230,16 @@ func compareIndicators(previous forecast.Indicators, current forecast.Indicators
 	return changes
 }
 
-func aggregateIndicators(dayparts []forecast.DaypartSummary) forecast.Indicators {
+func aggregateIndicators(dayparts map[string]daypartSummaryStanza) indicators {
-	out := forecast.Indicators{}
+	out := indicators{}
 	for _, daypart := range dayparts {
-		out.Snow = out.Snow || daypart.Indicators.Snow
+		out.Snow = out.Snow || daypart.Snow
-		out.Ice = out.Ice || daypart.Indicators.Ice
+		out.Ice = out.Ice || daypart.Ice
 	}
 	return out
 }
 
-func alertSet(alerts []forecast.AlertOverlap) map[string]struct{} {
+func alertSet(alerts []alertSummaryStanza) map[string]struct{} {
 	out := map[string]struct{}{}
 	for _, alert := range alerts {
 		event := alert.Event
@@ -185,10 +273,6 @@ func differenceAtLeast(previous float64, current float64, threshold float64) boo
 	return math.Abs(current-previous) >= threshold
 }
 
-func clock(t time.Time) string {
-	return t.Format("15:04")
-}
-
 func sortChanges(items []Change) {
 	sort.SliceStable(items, func(i, j int) bool {
 		if items[i].Type == items[j].Type {
@@ -197,3 +281,33 @@ func sortChanges(items []Change) {
 		return items[i].Type < items[j].Type
 	})
 }
+
+func parseClock(value string) (time.Time, bool) {
+	value = strings.TrimSpace(value)
+	for _, layout := range []string{"3 PM", "3:04 PM", "15:04"} {
+		if parsed, err := time.Parse(layout, value); err == nil {
+			return parsed, true
+		}
+	}
+	return time.Time{}, false
+}
+
+func parseTempRange(value string) (*int, *int) {
+	value = strings.TrimSpace(value)
+	if value == "" {
+		return nil, nil
+	}
+	parts := strings.Split(value, "-")
+	if len(parts) == 1 {
+		if parsed, err := strconv.Atoi(strings.TrimSpace(parts[0])); err == nil {
+			return &parsed, &parsed
+		}
+		return nil, nil
+	}
+	minValue, minErr := strconv.Atoi(strings.TrimSpace(parts[0]))
+	maxValue, maxErr := strconv.Atoi(strings.TrimSpace(parts[len(parts)-1]))
+	if minErr != nil || maxErr != nil {
+		return nil, nil
+	}
+	return &minValue, &maxValue
+}

internal/changes/daily_test.go

@@ -1,16 +1,15 @@
 package changes
 
 import (
+	"strings"
 	"testing"
-	"time"
 
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
 )
 
 func TestCompareDailyNoMeaningfulChanges(t *testing.T) {
-	previous := dailyBriefing(60, 70, 30, at("2026-05-29T08:00:00Z"), nil, forecast.Indicators{})
+	previous := dailySnapshot(t, 60, 70, 30, "8 AM", nil, false)
-	current := dailyBriefing(61, 71, 35, at("2026-05-29T08:30:00Z"), nil, forecast.Indicators{})
+	current := dailySnapshot(t, 61, 71, 35, "8:30 AM", nil, false)
 
 	changes, err := CompareDaily(previous, current, testThresholds())
 	if err != nil {
@@ -22,8 +21,8 @@ func TestCompareDailyNoMeaningfulChanges(t *testing.T) {
 }
 
 func TestCompareDailyTemperatureThreshold(t *testing.T) {
-	previous := dailyBriefing(50, 70, 10, at("2026-05-29T08:00:00Z"), nil, forecast.Indicators{})
+	previous := dailySnapshot(t, 50, 70, 10, "8 AM", nil, false)
-	current := dailyBriefing(58, 79, 10, at("2026-05-29T08:00:00Z"), nil, forecast.Indicators{})
+	current := dailySnapshot(t, 58, 79, 10, "8 AM", nil, false)
 
 	changes, err := CompareDaily(previous, current, testThresholds())
 	if err != nil {
@@ -35,8 +34,8 @@ func TestCompareDailyTemperatureThreshold(t *testing.T) {
 }
 
 func TestCompareDailyPrecipTimingShift(t *testing.T) {
-	previous := dailyBriefing(60, 70, 60, at("2026-05-29T08:00:00Z"), nil, forecast.Indicators{})
+	previous := dailySnapshot(t, 60, 70, 60, "8 AM", nil, false)
-	current := dailyBriefing(60, 70, 60, at("2026-05-29T11:00:00Z"), nil, forecast.Indicators{})
+	current := dailySnapshot(t, 60, 70, 60, "11 AM", nil, false)
 
 	changes, err := CompareDaily(previous, current, testThresholds())
 	if err != nil {
@@ -48,8 +47,8 @@ func TestCompareDailyPrecipTimingShift(t *testing.T) {
 }
 
 func TestCompareDailyAlertAddedAndRemoved(t *testing.T) {
-	previous := dailyBriefing(60, 70, 10, at("2026-05-29T08:00:00Z"), []string{"Wind Advisory"}, forecast.Indicators{})
+	previous := dailySnapshot(t, 60, 70, 10, "8 AM", []string{"Wind Advisory"}, false)
-	current := dailyBriefing(60, 70, 10, at("2026-05-29T08:00:00Z"), []string{"Flood Watch"}, forecast.Indicators{})
+	current := dailySnapshot(t, 60, 70, 10, "8 AM", []string{"Flood Watch"}, false)
 
 	changes, err := CompareDaily(previous, current, testThresholds())
 	if err != nil {
@@ -61,8 +60,8 @@ func TestCompareDailyAlertAddedAndRemoved(t *testing.T) {
 }
 
 func TestCompareDailyIndicatorChange(t *testing.T) {
-	previous := dailyBriefing(60, 70, 10, at("2026-05-29T08:00:00Z"), nil, forecast.Indicators{})
+	previous := dailySnapshot(t, 60, 70, 10, "8 AM", nil, false)
-	current := dailyBriefing(60, 70, 10, at("2026-05-29T08:00:00Z"), nil, forecast.Indicators{Snow: true})
+	current := dailySnapshot(t, 60, 70, 10, "8 AM", nil, true)
 
 	changes, err := CompareDaily(previous, current, testThresholds())
 	if err != nil {
@@ -73,26 +72,50 @@ func TestCompareDailyIndicatorChange(t *testing.T) {
 	}
 }
 
-func dailyBriefing(low float64, high float64, precip float64, precipTime time.Time, alerts []string, indicators forecast.Indicators) briefing.Package {
+func TestCompareDailyRequiresComparisonStanzas(t *testing.T) {
-	alertOverlaps := make([]forecast.AlertOverlap, 0, len(alerts))
+	_, err := CompareDaily(snapshot(t), dailySnapshot(t, 60, 70, 10, "8 AM", nil, false), testThresholds())
+	if err == nil {
+		t.Fatal("CompareDaily() error = nil, want missing stanza error")
+	}
+	if !strings.Contains(err.Error(), "derived_daily_summary") {
+		t.Fatalf("error = %q, want derived_daily_summary context", err.Error())
+	}
+}
+
+func dailySnapshot(t *testing.T, low int, high int, precip int, precipTime string, alerts []string, snow bool) module.Snapshot {
+	t.Helper()
+	relevant := make([]alertSummaryStanza, 0, len(alerts))
 	for _, alert := range alerts {
-		alertOverlaps = append(alertOverlaps, forecast.AlertOverlap{Event: alert})
+		relevant = append(relevant, alertSummaryStanza{Event: alert})
 	}
-	return briefing.Package{
+	return snapshot(t,
-		Daily: &briefing.Daily{
+		module.Output{ID: module.DerivedDailySummary, StanzaName: "derived_daily_summary", Value: dailySummaryStanza{
-			BottomLine: briefing.BottomLine{
+			Date:                          "2026-05-29",
-				Temperature: forecast.Range{Min: &low, Max: &high},
+			HighTempF:                     &high,
-				MaxPrecipProbability: &forecast.TimedValue{
+			LowTempF:                      &low,
-					Value: precip,
+			DailyPrecipitationProbability: &precip,
-					Time:  precipTime,
+		}},
-				},
+		module.Output{ID: module.DerivedDaypartSummaries, StanzaName: "derived_daypart_summaries", Value: map[string]daypartSummaryStanza{
-			},
+			"morning": {
-			RelevantAlerts: alertOverlaps,
+				Date:         "2026-05-29",
-			Dayparts: []forecast.DaypartSummary{
+				PeriodBegins: "2026-05-29 at 6:00 AM",
-				{Name: "morning", Indicators: indicators},
+				PeriodEnds:   "2026-05-29 at 10:00 AM",
-			},
+				TempRangeF:   "60-70",
+				Snow:         snow,
 			},
+		}},
+		module.Output{ID: module.PrecipTiming, StanzaName: "precip_timing", Value: precipTimingStanza{MaxPopPercent: &precip, MaxPopTime: precipTime}},
+		module.Output{ID: module.AlertDigest, StanzaName: "alert_digest", Value: alertDigestStanza{Relevant: relevant}},
+	)
 }
+
+func snapshot(t *testing.T, outputs ...module.Output) module.Snapshot {
+	t.Helper()
+	snapshot, err := module.NewSnapshot(outputs)
+	if err != nil {
+		t.Fatalf("NewSnapshot() error = %v", err)
+	}
+	return snapshot
 }
 
 func testThresholds() Thresholds {
@@ -113,11 +136,3 @@ func countType(changes []Change, changeType string) int {
 	}
 	return count
 }
-
-func at(value string) time.Time {
-	parsed, err := time.Parse(time.RFC3339, value)
-	if err != nil {
-		panic(err)
-	}
-	return parsed
-}

internal/changes/three_day.go

@@ -2,77 +2,143 @@ package changes
 
 import (
 	"fmt"
-	"time"
+	"sort"
 
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
 )
 
-func CompareThreeDay(previous briefing.Package, current briefing.Package, thresholds Thresholds) ([]Change, error) {
+func CompareThreeDay(previous module.Snapshot, current module.Snapshot, thresholds Thresholds) ([]Change, error) {
-	if previous.ThreeDay == nil {
+	previousDayparts, err := requiredStanza[map[string]daypartSummaryStanza](previous, "derived_daypart_summaries")
-		return nil, fmt.Errorf("previous 3-day briefing is required")
+	if err != nil {
+		return nil, fmt.Errorf("previous daypart summaries: %w", err)
 	}
-	if current.ThreeDay == nil {
+	currentDayparts, err := requiredStanza[map[string]daypartSummaryStanza](current, "derived_daypart_summaries")
-		return nil, fmt.Errorf("current 3-day briefing is required")
+	if err != nil {
+		return nil, fmt.Errorf("current daypart summaries: %w", err)
 	}
-	previousDays := outlookDaysByDate(previous.ThreeDay.Days)
+	previousDays := outlookDaysFromDayparts(previousDayparts)
-	currentDays := outlookDaysByDate(current.ThreeDay.Days)
+	currentDays := outlookDaysFromDayparts(currentDayparts)
+	return compareOutlookDays(previousDays, currentDays, thresholds, "")
+}
+
+type outlookDay struct {
+	Date           string
+	LowTempF       *int
+	HighTempF      *int
+	MaxPopPercent  *int
+	MaxPopTime     string
+	MaxWindGustMph *int
+	Indicators     indicators
+}
+
+func compareOutlookDays(previousDays map[string]outlookDay, currentDays map[string]outlookDay, thresholds Thresholds, prefix string) ([]Change, error) {
 	var changes []Change
 	for date, currentDay := range currentDays {
 		previousDay, ok := previousDays[date]
 		if !ok {
-			changes = append(changes, Change{Type: "outlook_day_added", Message: fmt.Sprintf("Outlook day added: %s.", date), Current: date})
+			changes = append(changes, Change{Type: prefix + "outlook_day_added", Message: fmt.Sprintf("Outlook day added: %s.", date), Current: date})
 			continue
 		}
-		changes = append(changes, compareOutlookDay(date, previousDay, currentDay, thresholds)...)
+		changes = append(changes, compareOutlookDay(date, previousDay, currentDay, thresholds, prefix)...)
 	}
 	for date := range previousDays {
 		if _, ok := currentDays[date]; !ok {
-			changes = append(changes, Change{Type: "outlook_day_removed", Message: fmt.Sprintf("Outlook day removed: %s.", date), Previous: date})
+			changes = append(changes, Change{Type: prefix + "outlook_day_removed", Message: fmt.Sprintf("Outlook day removed: %s.", date), Previous: date})
 		}
 	}
 	sortChanges(changes)
 	return changes, nil
 }
 
-func compareOutlookDay(date string, previous briefing.OutlookDay, current briefing.OutlookDay, thresholds Thresholds) []Change {
+func compareOutlookDay(date string, previous outlookDay, current outlookDay, thresholds Thresholds, prefix string) []Change {
 	var changes []Change
-	for _, change := range compareTemperature(previous.Temperature, current.Temperature, thresholds.TemperatureDegrees) {
+	for _, change := range compareTemperatureValues("Low", previous.LowTempF, current.LowTempF, thresholds.TemperatureDegrees) {
+		change.Message = date + ": " + change.Message
+		change.Type = prefix + "outlook_" + change.Type
+		changes = append(changes, change)
+	}
+	for _, change := range compareTemperatureValues("High", previous.HighTempF, current.HighTempF, thresholds.TemperatureDegrees) {
+		change.Message = date + ": " + change.Message
+		change.Type = prefix + "outlook_" + change.Type
+		changes = append(changes, change)
+	}
+	for _, change := range comparePrecipitationValues(previous.MaxPopPercent, current.MaxPopPercent, thresholds.PrecipProbabilityPoints, prefix+"outlook_") {
 		change.Message = date + ": " + change.Message
 		changes = append(changes, change)
 	}
-	for _, change := range comparePrecipitation(previous.MaxPrecipitationProbability, current.MaxPrecipitationProbability, thresholds) {
+	for _, change := range comparePrecipTiming(previous.MaxPopTime, current.MaxPopTime, thresholds.PrecipTimingShiftMinutes, prefix+"outlook_") {
 		change.Message = date + ": " + change.Message
 		changes = append(changes, change)
-		changes[len(changes)-1].Type = "outlook_" + change.Type
 	}
-	for _, change := range compareWind(previous.PeakWindGust, current.PeakWindGust, float64(thresholds.WindGustMilesPerHour)) {
+	for _, change := range compareWindValues(previous.MaxWindGustMph, current.MaxWindGustMph, thresholds.WindGustMilesPerHour, prefix+"outlook_") {
 		change.Message = date + ": " + change.Message
-		change.Type = "outlook_" + change.Type
 		changes = append(changes, change)
 	}
-	for _, change := range compareAlerts(previous.RelevantAlerts, current.RelevantAlerts) {
+	for _, change := range compareIndicators(previous.Indicators, current.Indicators, prefix+"outlook_") {
 		change.Message = date + ": " + change.Message
-		change.Type = "outlook_" + change.Type
-		changes = append(changes, change)
-	}
-	for _, change := range compareIndicators(aggregateIndicators(previous.Dayparts), aggregateIndicators(current.Dayparts)) {
-		change.Message = date + ": " + change.Message
-		change.Type = "outlook_" + change.Type
 		changes = append(changes, change)
 	}
 	return changes
 }
 
-func outlookDaysByDate(days []briefing.OutlookDay) map[string]briefing.OutlookDay {
+func outlookDaysFromDayparts(dayparts map[string]daypartSummaryStanza) map[string]outlookDay {
-	out := map[string]briefing.OutlookDay{}
+	out := map[string]outlookDay{}
-	for _, day := range days {
+	var keys []string
-		date := day.Date
+	for key := range dayparts {
-		if date == "" && !day.Period.Start.IsZero() {
+		keys = append(keys, key)
-			date = day.Period.Start.Format(time.DateOnly)
 	}
-		if date != "" {
+	sort.Strings(keys)
+	for _, key := range keys {
+		daypart := dayparts[key]
+		date := daypartDate(daypart)
+		if date == "" {
+			continue
+		}
+		day := out[date]
+		day.Date = date
+		low, high := parseTempRange(daypart.TempRangeF)
+		day.LowTempF = minInt(day.LowTempF, low)
+		day.HighTempF = maxInt(day.HighTempF, high)
+		day.MaxPopPercent = maxInt(day.MaxPopPercent, daypart.MaxPopPercent)
+		if daypart.MaxPopPercent != nil && day.MaxPopPercent != nil && *daypart.MaxPopPercent == *day.MaxPopPercent {
+			day.MaxPopTime = daypart.MaxPopTime
+		}
+		day.MaxWindGustMph = maxInt(day.MaxWindGustMph, daypart.MaxWindGustMph)
+		day.Indicators.Snow = day.Indicators.Snow || daypart.Snow
+		day.Indicators.Ice = day.Indicators.Ice || daypart.Ice
 		out[date] = day
 	}
-	}
 	return out
 }
+
+func daypartDate(daypart daypartSummaryStanza) string {
+	return daypart.Date
+}
+
+func minInt(a *int, b *int) *int {
+	if a == nil {
+		return copyInt(b)
+	}
+	if b != nil && *b < *a {
+		return copyInt(b)
+	}
+	return a
+}
+
+func maxInt(a *int, b *int) *int {
+	if a == nil {
+		return copyInt(b)
+	}
+	if b != nil && *b > *a {
+		return copyInt(b)
+	}
+	return a
+}
+
+func copyInt(value *int) *int {
+	if value == nil {
+		return nil
+	}
+	copied := *value
+	return &copied
+}

internal/changes/three_day_test.go

@@ -2,41 +2,13 @@ package changes
 
 import (
 	"testing"
-	"time"
 
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
 )
 
 func TestCompareThreeDayDetectsDayChanges(t *testing.T) {
-	previousTemp := 70.0
+	previous := outlookSnapshot(t, "2026-05-29", "70", 20, "9 AM", false)
-	currentTemp := 78.0
+	current := outlookSnapshot(t, "2026-05-29", "78", 70, "12 PM", true)
-	previousPrecip := 20.0
-	currentPrecip := 70.0
-	previous := briefing.Package{
-		Metadata: briefing.Metadata{ReportID: report.ThreeDay},
-		ThreeDay: &briefing.ThreeDay{Days: []briefing.OutlookDay{{
-			Date:        "2026-05-29",
-			Temperature: forecast.Range{Max: &previousTemp},
-			MaxPrecipitationProbability: &forecast.TimedValue{
-				Value: previousPrecip,
-				Time:  time.Date(2026, 5, 29, 9, 0, 0, 0, time.UTC),
-			},
-		}}},
-	}
-	current := briefing.Package{
-		Metadata: briefing.Metadata{ReportID: report.ThreeDay},
-		ThreeDay: &briefing.ThreeDay{Days: []briefing.OutlookDay{{
-			Date:        "2026-05-29",
-			Temperature: forecast.Range{Max: &currentTemp},
-			MaxPrecipitationProbability: &forecast.TimedValue{
-				Value: currentPrecip,
-				Time:  time.Date(2026, 5, 29, 12, 0, 0, 0, time.UTC),
-			},
-			Dayparts: []forecast.DaypartSummary{{Indicators: forecast.Indicators{Snow: true}}},
-		}}},
-	}
 
 	changes, err := CompareThreeDay(previous, current, Thresholds{
 		TemperatureDegrees:       5,
@@ -50,17 +22,22 @@ func TestCompareThreeDayDetectsDayChanges(t *testing.T) {
 	if len(changes) == 0 {
 		t.Fatal("changes length = 0, want detected 3-day changes")
 	}
-	var foundPrecip bool
+	if countType(changes, "outlook_precip_probability_change") == 0 || countType(changes, "outlook_snow_risk_change") == 0 {
-	var foundSnow bool
-	for _, change := range changes {
-		if change.Type == "outlook_precip_probability_change" {
-			foundPrecip = true
-		}
-		if change.Type == "outlook_snow_risk_change" {
-			foundSnow = true
-		}
-	}
-	if !foundPrecip || !foundSnow {
 		t.Fatalf("changes = %#v, want precipitation and snow changes", changes)
 	}
 }
+
+func outlookSnapshot(t *testing.T, date string, tempRange string, precip int, precipTime string, snow bool) module.Snapshot {
+	t.Helper()
+	return snapshot(t, module.Output{ID: module.DerivedDaypartSummaries, StanzaName: "derived_daypart_summaries", Value: map[string]daypartSummaryStanza{
+		date + "_morning": {
+			Date:          date,
+			PeriodBegins:  date + " at 6:00 AM",
+			PeriodEnds:    date + " at 10:00 AM",
+			TempRangeF:    tempRange,
+			MaxPopPercent: &precip,
+			MaxPopTime:    precipTime,
+			Snow:          snow,
+		},
+	}})
+}

internal/changes/weekend.go

@@ -3,24 +3,17 @@ package changes
 import (
 	"fmt"
 
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
 )
 
-func CompareWeekend(previous briefing.Package, current briefing.Package, thresholds Thresholds) ([]Change, error) {
+func CompareWeekend(previous module.Snapshot, current module.Snapshot, thresholds Thresholds) ([]Change, error) {
-	if previous.Weekend == nil {
+	previousDayparts, err := requiredStanza[map[string]daypartSummaryStanza](previous, "derived_daypart_summaries")
-		return nil, fmt.Errorf("previous weekend briefing is required")
-	}
-	if current.Weekend == nil {
-		return nil, fmt.Errorf("current weekend briefing is required")
-	}
-	previousOutlook := briefing.Package{ThreeDay: &briefing.ThreeDay{Days: previous.Weekend.Days}}
-	currentOutlook := briefing.Package{ThreeDay: &briefing.ThreeDay{Days: current.Weekend.Days}}
-	changes, err := CompareThreeDay(previousOutlook, currentOutlook, thresholds)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("previous weekend daypart summaries: %w", err)
 	}
-	for i := range changes {
+	currentDayparts, err := requiredStanza[map[string]daypartSummaryStanza](current, "derived_daypart_summaries")
-		changes[i].Type = "weekend_" + changes[i].Type
+	if err != nil {
+		return nil, fmt.Errorf("current weekend daypart summaries: %w", err)
 	}
-	return changes, nil
+	return compareOutlookDays(outlookDaysFromDayparts(previousDayparts), outlookDaysFromDayparts(currentDayparts), thresholds, "weekend_")
 }

internal/changes/weekend_test.go

@@ -1,31 +1,10 @@
 package changes
 
-import (
+import "testing"
-	"testing"
-
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
-	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
-)
 
 func TestCompareWeekendDetectsOutlookChanges(t *testing.T) {
-	previousTemp := 70.0
+	previous := outlookSnapshot(t, "2026-05-30", "70", 10, "9 AM", false)
-	currentTemp := 78.0
+	current := outlookSnapshot(t, "2026-05-30", "78", 10, "9 AM", true)
-	previous := briefing.Package{
-		Metadata: briefing.Metadata{ReportID: report.Weekend},
-		Weekend: &briefing.Weekend{Days: []briefing.OutlookDay{{
-			Date:        "2026-05-30",
-			Temperature: forecast.Range{Max: &previousTemp},
-		}}},
-	}
-	current := briefing.Package{
-		Metadata: briefing.Metadata{ReportID: report.Weekend},
-		Weekend: &briefing.Weekend{Days: []briefing.OutlookDay{{
-			Date:        "2026-05-30",
-			Temperature: forecast.Range{Max: &currentTemp},
-			Dayparts:    []forecast.DaypartSummary{{Indicators: forecast.Indicators{Snow: true}}},
-		}}},
-	}
 
 	changes, err := CompareWeekend(previous, current, Thresholds{TemperatureDegrees: 5})
 	if err != nil {
@@ -34,10 +13,7 @@ func TestCompareWeekendDetectsOutlookChanges(t *testing.T) {
 	if len(changes) == 0 {
 		t.Fatal("changes length = 0, want weekend changes")
 	}
-	for _, change := range changes {
+	if countType(changes, "weekend_outlook_snow_risk_change") == 0 {
-		if change.Type == "weekend_outlook_snow_risk_change" {
-			return
-		}
-	}
 		t.Fatalf("changes = %#v, want snow risk change", changes)
 	}
+}

internal/cli/root.go

@@ -17,8 +17,10 @@ const helpText = `weatherreporter prepares weather reports from normalized forec
 
 Usage:
   weatherreporter --help
-  weatherreporter generate daily [--config PATH] [--units VALUE] [--tz NAME] [--out PATH] [--date YYYY-MM-DD]
+  weatherreporter generate daily --date YYYY-MM-DD [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
+  weatherreporter generate today [--config PATH] [--units VALUE] [--tz NAME] [--out PATH] [--date YYYY-MM-DD]
   weatherreporter generate tomorrow [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
+  weatherreporter generate hourly [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
   weatherreporter generate three-day [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
   weatherreporter generate weekend [--config PATH] [--units VALUE] [--tz NAME] [--out PATH]
   weatherreporter generate storm [--config PATH] [--units VALUE] [--tz NAME] [--out PATH] --start TIME --end TIME
@@ -26,7 +28,7 @@ Usage:
   weatherreporter run evening [--config PATH] [--units VALUE] [--tz NAME] [--out-dir PATH]
   weatherreporter inspect reports [--config PATH] [--limit N]
   weatherreporter inspect metadata [--config PATH] RUN_ID
-  weatherreporter inspect briefing [--config PATH] RUN_ID
+  weatherreporter inspect modules [--config PATH] RUN_ID
   weatherreporter inspect data-package [--config PATH] RUN_ID
   weatherreporter inspect prior [--config PATH] RUN_ID
   weatherreporter inspect sources [--config PATH] RUN_ID
@@ -36,7 +38,7 @@ Options:
   --config PATH    Load configuration from PATH instead of /usr/local/etc/weatherreporter/config.yml.
   --units VALUE    Override weather API units.
   --tz NAME        Override weather API timezone.
-  --out PATH       Write an extra Markdown report copy for generate commands.
+  --out PATH       Write an extra Markdown report copy where supported by the generate command.
   --out-dir PATH   Write extra Markdown report copies for run commands.
 `
 
@@ -118,8 +120,8 @@ var inspectRunCommands = []inspectRunCommand{
 	{Name: "metadata", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
 		return app.InspectMetadata(ctx, req)
 	}},
-	{Name: "briefing", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
+	{Name: "modules", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
-		return app.InspectBriefing(ctx, req)
+		return app.InspectModules(ctx, req)
 	}},
 	{Name: "data-package", Inspect: func(ctx context.Context, req app.InspectRunRequest) (any, error) {
 		return app.InspectDataPackage(ctx, req)
@@ -185,10 +187,10 @@ func (r Runner) resolveGenerate(args []string) (app.GenerateRequest, error) {
 	if len(args) == 0 {
 		return app.GenerateRequest{}, fmt.Errorf("generate requires a report name")
 	}
-	reportKind, ok := reportKind(args[0])
+	if _, err := report.IDForCommandName(args[0]); err != nil {
-	if !ok {
 		return app.GenerateRequest{}, fmt.Errorf("unknown generate report %q", args[0])
 	}
+	reportKind := app.ReportKind(args[0])
 
 	opts, err := parseGenerateFlags(reportKind, args[1:])
 	if err != nil {
@@ -216,6 +218,14 @@ func (r Runner) resolveGenerate(args []string) (app.GenerateRequest, error) {
 
 	switch reportKind {
 	case app.ReportDaily:
+		if opts.Date == "" {
+			return app.GenerateRequest{}, fmt.Errorf("generate daily requires --date YYYY-MM-DD")
+		}
+		req.Date, err = timeutil.ParseLocalDate(opts.Date, location)
+		if err != nil {
+			return app.GenerateRequest{}, err
+		}
+	case app.ReportToday:
 		if opts.Date == "" {
 			req.Date = timeutil.LocalDate(r.Clock.Now(), location)
 		} else {
@@ -249,10 +259,10 @@ func (r Runner) resolveRun(args []string) (app.BatchRequest, error) {
 	if len(args) == 0 {
 		return app.BatchRequest{}, fmt.Errorf("run requires a batch name")
 	}
-	batch, ok := batchKind(args[0])
+	if _, err := report.BatchForCommandName(args[0]); err != nil {
-	if !ok {
 		return app.BatchRequest{}, fmt.Errorf("unknown run batch %q", args[0])
 	}
+	batch := app.BatchKind(args[0])
 	opts, err := parseRunFlags(args[1:])
 	if err != nil {
 		return app.BatchRequest{}, err
@@ -277,7 +287,7 @@ func parseGenerateFlags(report app.ReportKind, args []string) (generateOptions,
 	fs.SetOutput(io.Discard)
 	opts := generateOptions{}
 	addCommonFlags(fs, &opts.commonOptions, true)
-	if report == app.ReportDaily {
+	if report == app.ReportDaily || report == app.ReportToday {
 		fs.StringVar(&opts.Date, "date", "", "report date in YYYY-MM-DD")
 	}
 	if report == app.ReportStorm {
@@ -352,11 +362,21 @@ func writeRunLogs(stderr io.Writer, result *app.BatchResult) {
 		return
 	}
 	for _, item := range result.Reports {
+		notificationFields := ""
+		if item.NotificationStatus != "" {
+			notificationFields += fmt.Sprintf(" notificationStatus=%q", item.NotificationStatus)
+		}
+		if item.NotificationRunID != "" {
+			notificationFields += fmt.Sprintf(" notificationRunId=%q", item.NotificationRunID)
+		}
+		if item.NotificationError != "" {
+			notificationFields += fmt.Sprintf(" notificationError=%q", item.NotificationError)
+		}
 		if item.Status == "failed" {
-			_, _ = fmt.Fprintf(stderr, "report=%s status=failed error=%q\n", item.ReportID, item.Error)
+			_, _ = fmt.Fprintf(stderr, "report=%s status=failed error=%q%s\n", item.ReportID, item.Error, notificationFields)
 			continue
 		}
-		_, _ = fmt.Fprintf(stderr, "report=%s status=succeeded output=%q\n", item.ReportID, item.OutputPath)
+		_, _ = fmt.Fprintf(stderr, "report=%s status=succeeded output=%q%s\n", item.ReportID, item.OutputPath, notificationFields)
 	}
 	_, _ = fmt.Fprintf(stderr, "batch=%s total=%d succeeded=%d failed=%d\n", result.Batch, result.Total, result.Succeeded, result.Failed)
 }
@@ -369,31 +389,3 @@ func addCommonFlags(fs *flag.FlagSet, opts *commonOptions, includeOutput bool) {
 		fs.StringVar(&opts.Output, "out", "", "extra Markdown report copy path")
 	}
 }
-
-func reportKind(value string) (app.ReportKind, bool) {
-	switch value {
-	case string(app.ReportDaily):
-		return app.ReportDaily, true
-	case string(app.ReportTomorrow):
-		return app.ReportTomorrow, true
-	case string(app.ReportThreeDay):
-		return app.ReportThreeDay, true
-	case string(app.ReportWeekend):
-		return app.ReportWeekend, true
-	case string(app.ReportStorm):
-		return app.ReportStorm, true
-	default:
-		return "", false
-	}
-}
-
-func batchKind(value string) (app.BatchKind, bool) {
-	switch value {
-	case string(app.BatchMorning):
-		return app.BatchMorning, true
-	case string(app.BatchEvening):
-		return app.BatchEvening, true
-	default:
-		return "", false
-	}
-}

internal/config/config.go

@@ -2,24 +2,36 @@
 // precedence, and validation.
 package config
 
-import "time"
+import (
+	"fmt"
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gopkg.in/yaml.v3"
+)
 
 type MissingSourcePolicy string
+type NotifyFailurePolicy string
 
 const (
 	MissingSourceError MissingSourcePolicy = "error"
 	MissingSourceWarn  MissingSourcePolicy = "warn"
 	MissingSourceNone  MissingSourcePolicy = "none"
+
+	NotifyFailureError NotifyFailurePolicy = "error"
 )
 
 type Config struct {
 	WeatherAPI    WeatherAPIConfig        `yaml:"weather_api"`
 	Location      LocationConfig          `yaml:"location"`
+	Secrets       SecretsConfig           `yaml:"secrets"`
+	Notify        NotifyConfig            `yaml:"notify"`
 	MissingSource MissingSourceConfig     `yaml:"missing_source"`
 	Scriptorium   ScriptoriumConfig       `yaml:"scriptorium"`
 	Workspace     WorkspaceConfig         `yaml:"workspace"`
 	Dayparts      []DaypartConfig         `yaml:"dayparts"`
 	RecentChange  RecentChangeConfig      `yaml:"recent_change"`
+	Reports       map[string]ReportConfig `yaml:"reports"`
 }
 
 type WeatherAPIConfig struct {
@@ -37,6 +49,26 @@ type LocationConfig struct {
 	Region string `yaml:"region"`
 }
 
+type SecretsConfig struct {
+	Directory string `yaml:"directory"`
+}
+
+type NotifyConfig struct {
+	Distributor DistributorNotifyConfig `yaml:"distributor"`
+}
+
+type DistributorNotifyConfig struct {
+	Enabled                bool                `yaml:"enabled"`
+	Endpoint               string              `yaml:"endpoint"`
+	TokenEnv               string              `yaml:"token_env"`
+	Timeout                time.Duration       `yaml:"timeout"`
+	FailurePolicy          NotifyFailurePolicy `yaml:"failure_policy"`
+	PipelineIDTemplate     string              `yaml:"pipeline_id_template"`
+	BundleIDTemplate       string              `yaml:"bundle_id_template"`
+	IdempotencyKeyTemplate string              `yaml:"idempotency_key_template"`
+	ReportPathTemplates    []string            `yaml:"report_path_templates"`
+}
+
 type MissingSourceConfig struct {
 	Default MissingSourcePolicy            `yaml:"default"`
 	Sources map[string]MissingSourcePolicy `yaml:"sources"`
@@ -56,6 +88,7 @@ type WorkspaceConfig struct {
 	ReportsDir       string `yaml:"reports_dir"`
 	DataPackagesDir  string `yaml:"data_packages_dir"`
 	PreflightDir     string `yaml:"preflight_dir"`
+	NotificationsDir string `yaml:"notifications_dir"`
 }
 
 type DaypartConfig struct {
@@ -70,3 +103,71 @@ type RecentChangeConfig struct {
 	WindGustMilesPerHour     int     `yaml:"wind_gust_miles_per_hour"`
 	PrecipTimingShiftMinutes int     `yaml:"precip_timing_shift_minutes"`
 }
+
+type ReportConfig struct {
+	DeterministicModules    []ModuleConfigItem `yaml:"deterministic_modules"`
+	deterministicModulesSet bool
+}
+
+type ModuleConfigItem struct {
+	ID      module.ID `yaml:"id"`
+	Options any       `yaml:"options,omitempty"`
+}
+
+func (c *ReportConfig) UnmarshalYAML(value *yaml.Node) error {
+	if value.Kind != yaml.MappingNode {
+		return fmt.Errorf("report entry must be a mapping")
+	}
+	for i := 0; i < len(value.Content); i += 2 {
+		key := value.Content[i].Value
+		node := value.Content[i+1]
+		switch key {
+		case "deterministic_modules":
+			if err := node.Decode(&c.DeterministicModules); err != nil {
+				return err
+			}
+			c.deterministicModulesSet = true
+		default:
+			return fmt.Errorf("unknown report entry field %q", key)
+		}
+	}
+	return nil
+}
+
+func (m *ModuleConfigItem) UnmarshalYAML(value *yaml.Node) error {
+	switch value.Kind {
+	case yaml.ScalarNode:
+		if value.Value == "" {
+			return fmt.Errorf("module id is required")
+		}
+		m.ID = module.ID(value.Value)
+		return nil
+	case yaml.MappingNode:
+		var sawID bool
+		for i := 0; i < len(value.Content); i += 2 {
+			key := value.Content[i].Value
+			node := value.Content[i+1]
+			switch key {
+			case "id":
+				if err := node.Decode(&m.ID); err != nil {
+					return err
+				}
+				sawID = true
+			case "options":
+				var options any
+				if err := node.Decode(&options); err != nil {
+					return err
+				}
+				m.Options = options
+			default:
+				return fmt.Errorf("unknown module entry field %q", key)
+			}
+		}
+		if !sawID || m.ID == "" {
+			return fmt.Errorf("module id is required")
+		}
+		return nil
+	default:
+		return fmt.Errorf("module entry must be a string or mapping")
+	}
+}

internal/config/config_test.go

@@ -3,9 +3,13 @@ package config
 import (
 	"os"
 	"path/filepath"
+	"reflect"
 	"strings"
 	"testing"
 	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
 )
 
 func TestDefaults(t *testing.T) {
@@ -26,6 +30,39 @@ func TestDefaults(t *testing.T) {
 	if cfg.Location.ID != "home" || cfg.Location.Name != "Brentwood" || cfg.Location.Region != "St. Louis Metro" {
 		t.Fatalf("Location = %#v, want home/Brentwood/St. Louis Metro", cfg.Location)
 	}
+	if cfg.Secrets.Directory != "" {
+		t.Fatalf("Secrets.Directory = %q, want empty", cfg.Secrets.Directory)
+	}
+	if cfg.Notify.Distributor.Enabled {
+		t.Fatalf("Notify.Distributor.Enabled = true, want false")
+	}
+	if cfg.Notify.Distributor.Endpoint != "https://distributor.example.com" {
+		t.Fatalf("Notify.Distributor.Endpoint = %q, want default endpoint", cfg.Notify.Distributor.Endpoint)
+	}
+	if cfg.Notify.Distributor.TokenEnv != "DISTRIBUTOR_UPLOAD_TOKEN" {
+		t.Fatalf("Notify.Distributor.TokenEnv = %q, want DISTRIBUTOR_UPLOAD_TOKEN", cfg.Notify.Distributor.TokenEnv)
+	}
+	if cfg.Notify.Distributor.Timeout != 30*time.Second {
+		t.Fatalf("Notify.Distributor.Timeout = %s, want 30s", cfg.Notify.Distributor.Timeout)
+	}
+	if cfg.Notify.Distributor.FailurePolicy != NotifyFailureError {
+		t.Fatalf("Notify.Distributor.FailurePolicy = %q, want error", cfg.Notify.Distributor.FailurePolicy)
+	}
+	if cfg.Notify.Distributor.PipelineIDTemplate != "" {
+		t.Fatalf("Notify.Distributor.PipelineIDTemplate = %q, want empty", cfg.Notify.Distributor.PipelineIDTemplate)
+	}
+	if cfg.Notify.Distributor.BundleIDTemplate != "weatherreporter.{location_id}.{report_id}" {
+		t.Fatalf("Notify.Distributor.BundleIDTemplate = %q, want default", cfg.Notify.Distributor.BundleIDTemplate)
+	}
+	if cfg.Notify.Distributor.IdempotencyKeyTemplate != "{bundle_id}.{run_id}" {
+		t.Fatalf("Notify.Distributor.IdempotencyKeyTemplate = %q, want default", cfg.Notify.Distributor.IdempotencyKeyTemplate)
+	}
+	wantReportPaths := []string{
+		"{valid_start_date}/{artifact_group}/{valid_start_date}-{artifact_group}-{run_id}.md",
+	}
+	if strings.Join(cfg.Notify.Distributor.ReportPathTemplates, "\n") != strings.Join(wantReportPaths, "\n") {
+		t.Fatalf("Notify.Distributor.ReportPathTemplates = %#v, want %#v", cfg.Notify.Distributor.ReportPathTemplates, wantReportPaths)
+	}
 	if cfg.MissingSource.Default != MissingSourceWarn {
 		t.Fatalf("MissingSource.Default = %q, want warn", cfg.MissingSource.Default)
 	}
@@ -49,6 +86,31 @@ func TestLoadExampleConfig(t *testing.T) {
 	if cfg.Location.ID != "home" || cfg.Location.Name != "Brentwood" || cfg.Location.Region != "St. Louis Metro" {
 		t.Fatalf("Location = %#v, want example location", cfg.Location)
 	}
+	if cfg.Notify.Distributor.PipelineIDTemplate != "weatherreporter.{report_id}" {
+		t.Fatalf("PipelineIDTemplate = %q, want example pipeline template", cfg.Notify.Distributor.PipelineIDTemplate)
+	}
+	if len(cfg.Notify.Distributor.ReportPathTemplates) != 1 {
+		t.Fatalf("ReportPathTemplates = %#v, want example archive path", cfg.Notify.Distributor.ReportPathTemplates)
+	}
+	overrides, err := cfg.ReportModuleOverrides()
+	if err != nil {
+		t.Fatalf("ReportModuleOverrides() error = %v", err)
+	}
+	hourly := overrides[report.Hourly]
+	if len(hourly) != 9 {
+		t.Fatalf("hourly example override length = %d, want 9", len(hourly))
+	}
+	if hourly[0].ID != module.Metadata ||
+		hourly[1].ID != module.CurrentConditions ||
+		hourly[2].ID != module.HourlyForecast ||
+		hourly[3].ID != module.PrecipTiming ||
+		hourly[4].ID != module.AlertDigest ||
+		hourly[5].ID != module.SPCConvectiveOutlooks ||
+		hourly[6].ID != module.AreaForecastDiscussion ||
+		hourly[7].ID != module.SPCConvectiveDiscussion ||
+		hourly[8].ID != module.WeatherStory {
+		t.Fatalf("hourly example override = %#v, want configured module order", hourly)
+	}
 }
 
 func TestLoadMinimalExampleConfig(t *testing.T) {
@@ -69,11 +131,411 @@ func TestLoadMinimalExampleConfig(t *testing.T) {
 	if cfg.Workspace.Root != "workspace" {
 		t.Fatalf("Workspace.Root = %q, want default workspace", cfg.Workspace.Root)
 	}
+	if cfg.Workspace.NotificationsDir != "notifications" {
+		t.Fatalf("Workspace.NotificationsDir = %q, want notifications", cfg.Workspace.NotificationsDir)
+	}
 	if cfg.Location.Name != "Brentwood" {
 		t.Fatalf("Location.Name = %q, want default Brentwood", cfg.Location.Name)
 	}
 }
 
+func TestLoadReportModuleOverrides(t *testing.T) {
+	path := writeConfig(t, `
+reports:
+  daily:
+    deterministic_modules:
+      - metadata
+      - current_conditions
+      - alert_digest
+      - spc_convective_outlooks
+      - id: area_forecast_discussion
+        options:
+          sections:
+            - short_term
+      - spc_convective_discussion
+`)
+
+	cfg, err := LoadFile(path)
+	if err != nil {
+		t.Fatalf("LoadFile() error = %v", err)
+	}
+	overrides, err := cfg.ReportModuleOverrides()
+	if err != nil {
+		t.Fatalf("ReportModuleOverrides() error = %v", err)
+	}
+	items := overrides[report.Daily]
+	if len(items) != 6 {
+		t.Fatalf("daily override length = %d, want 6", len(items))
+	}
+	if items[0].ID != module.Metadata ||
+		items[1].ID != module.CurrentConditions ||
+		items[2].ID != module.AlertDigest ||
+		items[3].ID != module.SPCConvectiveOutlooks ||
+		items[4].ID != module.AreaForecastDiscussion ||
+		items[5].ID != module.SPCConvectiveDiscussion {
+		t.Fatalf("daily override = %#v, want configured module order", items)
+	}
+	options, ok := items[4].Options.(module.AreaForecastDiscussionOptions)
+	if !ok {
+		t.Fatalf("AFD options type = %T, want AreaForecastDiscussionOptions", items[4].Options)
+	}
+	if strings.Join(options.Sections, ",") != "short_term" {
+		t.Fatalf("AFD sections = %#v, want short_term", options.Sections)
+	}
+}
+
+func TestLoadTodayReportModuleOverrides(t *testing.T) {
+	path := writeConfig(t, `
+reports:
+  today:
+    deterministic_modules:
+      - metadata
+      - current_conditions
+      - derived_daily_summary
+      - derived_daypart_summaries
+      - today_planning
+`)
+
+	cfg, err := LoadFile(path)
+	if err != nil {
+		t.Fatalf("LoadFile() error = %v", err)
+	}
+	overrides, err := cfg.ReportModuleOverrides()
+	if err != nil {
+		t.Fatalf("ReportModuleOverrides() error = %v", err)
+	}
+	items := overrides[report.Today]
+	if len(items) != 5 {
+		t.Fatalf("today override length = %d, want 5", len(items))
+	}
+	want := []module.ID{
+		module.Metadata,
+		module.CurrentConditions,
+		module.DerivedDailySummary,
+		module.DerivedDaypartSummaries,
+		module.TodayPlanning,
+	}
+	for i, id := range want {
+		if items[i].ID != id {
+			t.Fatalf("today override[%d] = %s, want %s", i, items[i].ID, id)
+		}
+	}
+	if _, ok := overrides[report.Daily]; ok {
+		t.Fatalf("daily override = %#v, want today override to stay distinct", overrides[report.Daily])
+	}
+}
+
+func TestLoadHourlyReportModuleOverrides(t *testing.T) {
+	path := writeConfig(t, `
+reports:
+  hourly:
+    deterministic_modules:
+      - metadata
+      - hourly_forecast
+      - precip_timing
+      - alert_digest
+`)
+
+	cfg, err := LoadFile(path)
+	if err != nil {
+		t.Fatalf("LoadFile() error = %v", err)
+	}
+	overrides, err := cfg.ReportModuleOverrides()
+	if err != nil {
+		t.Fatalf("ReportModuleOverrides() error = %v", err)
+	}
+	items := overrides[report.Hourly]
+	if len(items) != 4 {
+		t.Fatalf("hourly override length = %d, want 4", len(items))
+	}
+	if items[0].ID != module.Metadata ||
+		items[1].ID != module.HourlyForecast ||
+		items[2].ID != module.PrecipTiming ||
+		items[3].ID != module.AlertDigest {
+		t.Fatalf("hourly override = %#v, want configured module order", items)
+	}
+}
+
+func TestLoadReportModuleOverrideAliases(t *testing.T) {
+	path := writeConfig(t, `
+reports:
+  three-day-outlook:
+    deterministic_modules:
+      - metadata
+  weekend_outlook:
+    deterministic_modules:
+      - metadata
+  storm_report:
+    deterministic_modules:
+      - metadata
+`)
+
+	cfg, err := LoadFile(path)
+	if err != nil {
+		t.Fatalf("LoadFile() error = %v", err)
+	}
+	overrides, err := cfg.ReportModuleOverrides()
+	if err != nil {
+		t.Fatalf("ReportModuleOverrides() error = %v", err)
+	}
+	if len(overrides[report.ThreeDay]) != 1 || overrides[report.ThreeDay][0].ID != module.Metadata {
+		t.Fatalf("three-day alias override = %#v, want metadata override", overrides[report.ThreeDay])
+	}
+	if len(overrides[report.Weekend]) != 1 || overrides[report.Weekend][0].ID != module.Metadata {
+		t.Fatalf("weekend alias override = %#v, want metadata override", overrides[report.Weekend])
+	}
+	if len(overrides[report.Storm]) != 1 || overrides[report.Storm][0].ID != module.Metadata {
+		t.Fatalf("storm alias override = %#v, want metadata override", overrides[report.Storm])
+	}
+}
+
+func TestValidateReportModuleKeysWithoutMutatingOptions(t *testing.T) {
+	cfg := Defaults()
+	rawOptions := map[string]any{
+		"sections": []any{"short_term"},
+	}
+	cfg.Reports = map[string]ReportConfig{
+		"daily": {
+			DeterministicModules: []ModuleConfigItem{
+				{ID: module.Metadata},
+				{ID: module.AreaForecastDiscussion, Options: rawOptions},
+			},
+			deterministicModulesSet: true,
+		},
+	}
+
+	if err := Validate(cfg); err != nil {
+		t.Fatalf("Validate() error = %v", err)
+	}
+	got, ok := cfg.Reports["daily"].DeterministicModules[1].Options.(map[string]any)
+	if !ok || !reflect.DeepEqual(got, rawOptions) {
+		t.Fatalf("Options after Validate = %#v, want original raw map", cfg.Reports["daily"].DeterministicModules[1].Options)
+	}
+}
+
+func TestValidateReportModuleAliasesDirectly(t *testing.T) {
+	retiredDailyKey := retiredDailyReportKeyForTest()
+	tests := []struct {
+		name    string
+		reports map[string]ReportConfig
+		wantErr string
+	}{
+		{
+			name: "RetiredDailyReportID",
+			reports: map[string]ReportConfig{
+				"daily":         {},
+				retiredDailyKey: {},
+			},
+			wantErr: "reports." + retiredDailyKey,
+		},
+		{
+			name: "TodayAndDailyAreDistinct",
+			reports: map[string]ReportConfig{
+				"daily": {},
+				"today": {},
+			},
+		},
+		{
+			name: "UnknownReport",
+			reports: map[string]ReportConfig{
+				"moon": {},
+			},
+			wantErr: "reports.moon",
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg := Defaults()
+			cfg.Reports = tt.reports
+			err := Validate(cfg)
+			if tt.wantErr == "" {
+				if err != nil {
+					t.Fatalf("Validate() error = %v", err)
+				}
+				return
+			}
+			if err == nil {
+				t.Fatal("Validate() error = nil, want report key error")
+			}
+			if !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("Validate() error = %q, want %q", err.Error(), tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestReportModuleOverridesRejectsInvalidReportKeys(t *testing.T) {
+	cfg := Defaults()
+	cfg.Reports = map[string]ReportConfig{
+		"moon": {
+			DeterministicModules:    []ModuleConfigItem{{ID: module.Metadata}},
+			deterministicModulesSet: true,
+		},
+	}
+	_, err := cfg.ReportModuleOverrides()
+	if err == nil {
+		t.Fatal("ReportModuleOverrides() error = nil, want invalid report key")
+	}
+	if !strings.Contains(err.Error(), "reports.moon") {
+		t.Fatalf("ReportModuleOverrides() error = %q, want report key context", err.Error())
+	}
+}
+
+func TestReportModuleOverrideValidation(t *testing.T) {
+	retiredDailyKey := retiredDailyReportKeyForTest()
+	tests := []struct {
+		name    string
+		yaml    string
+		wantErr string
+	}{
+		{
+			name: "UnknownReport",
+			yaml: `
+reports:
+  moon:
+    deterministic_modules:
+      - metadata
+`,
+			wantErr: "reports.moon",
+		},
+		{
+			name: "UnknownModule",
+			yaml: `
+reports:
+  daily:
+    deterministic_modules:
+      - missing_module
+`,
+			wantErr: `unknown module "missing_module"`,
+		},
+		{
+			name: "DuplicateModule",
+			yaml: `
+reports:
+  daily:
+    deterministic_modules:
+      - metadata
+      - metadata
+`,
+			wantErr: `duplicate module "metadata"`,
+		},
+		{
+			name: "IncompatibleModule",
+			yaml: `
+reports:
+  daily:
+    deterministic_modules:
+      - tomorrow_planning
+`,
+			wantErr: `not compatible with report "daily"`,
+		},
+		{
+			name: "RemovedPlaceholderModule",
+			yaml: `
+reports:
+  daily:
+    deterministic_modules:
+      - forecast_delta
+`,
+			wantErr: `unknown module "forecast_delta"`,
+		},
+		{
+			name: "RetiredTomorrowReportID",
+			yaml: `
+reports:
+  daily_tomorrow:
+    deterministic_modules:
+      - metadata
+`,
+			wantErr: "reports.daily_tomorrow",
+		},
+		{
+			name: "InvalidOptions",
+			yaml: `
+reports:
+  daily:
+    deterministic_modules:
+      - id: metadata
+        options:
+          sections:
+            - short_term
+`,
+			wantErr: "options are invalid",
+		},
+		{
+			name: "RetiredDailyReportID",
+			yaml: `
+reports:
+  daily:
+    deterministic_modules:
+      - metadata
+  ` + retiredDailyKey + `:
+    deterministic_modules:
+      - current_conditions
+`,
+			wantErr: "reports." + retiredDailyKey,
+		},
+		{
+			name: "HourlyIncompatibleDailyModule",
+			yaml: `
+reports:
+  hourly:
+    deterministic_modules:
+      - derived_daily_summary
+`,
+			wantErr: `not compatible with report "hourly"`,
+		},
+		{
+			name: "UnknownReportField",
+			yaml: `
+reports:
+  daily:
+    modules:
+      - metadata
+`,
+			wantErr: `unknown report entry field "modules"`,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := LoadFile(writeConfig(t, tt.yaml))
+			if err == nil {
+				t.Fatal("LoadFile() error = nil, want validation error")
+			}
+			if !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("error = %q, want %q", err.Error(), tt.wantErr)
+			}
+		})
+	}
+}
+
+func retiredDailyReportKeyForTest() string {
+	return strings.Join([]string{"daily", "today"}, "_")
+}
+
+func TestReportModuleOverrideRejectsRetiredHourlyKeys(t *testing.T) {
+	for _, key := range []string{
+		strings.Join([]string{"near", "term"}, "_"),
+		strings.Join([]string{"near", "term"}, "-"),
+	} {
+		t.Run(key, func(t *testing.T) {
+			_, err := LoadFile(writeConfig(t, `
+reports:
+  `+key+`:
+    deterministic_modules:
+      - metadata
+`))
+			if err == nil {
+				t.Fatal("LoadFile() error = nil, want unknown report")
+			}
+			if !strings.Contains(err.Error(), "is not a known report") {
+				t.Fatalf("error = %q, want unknown report", err.Error())
+			}
+		})
+	}
+}
+
 func TestExplicitMissingConfigReturnsError(t *testing.T) {
 	_, err := LoadFile(filepath.Join(t.TempDir(), "missing.yml"))
 	if err == nil {
@@ -84,6 +546,15 @@ func TestExplicitMissingConfigReturnsError(t *testing.T) {
 	}
 }
 
+func writeConfig(t *testing.T, contents string) string {
+	t.Helper()
+	path := filepath.Join(t.TempDir(), "config.yml")
+	if err := os.WriteFile(path, []byte(contents), 0o600); err != nil {
+		t.Fatalf("write config fixture: %v", err)
+	}
+	return path
+}
+
 func TestInvalidConfigProducesActionableError(t *testing.T) {
 	dir := t.TempDir()
 	path := filepath.Join(dir, "config.yml")
@@ -112,3 +583,475 @@ func TestLoadAppliesOverrides(t *testing.T) {
 		t.Fatalf("Timezone = %q, want +09:30", cfg.WeatherAPI.Timezone)
 	}
 }
+
+func TestDisabledDistributorNotifyAcceptsOmittedFields(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "config.yml")
+	if err := os.WriteFile(path, []byte("notify:\n  distributor:\n    enabled: false\n"), 0o600); err != nil {
+		t.Fatalf("write config fixture: %v", err)
+	}
+
+	cfg, err := LoadFile(path)
+	if err != nil {
+		t.Fatalf("LoadFile() error = %v", err)
+	}
+	if cfg.Notify.Distributor.Enabled {
+		t.Fatalf("Notify.Distributor.Enabled = true, want false")
+	}
+}
+
+func TestEnabledDistributorNotifyValidation(t *testing.T) {
+	tests := []struct {
+		name    string
+		mutate  func(*Config)
+		wantErr string
+	}{
+		{
+			name: "Endpoint",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.Endpoint = "distributor.example.com"
+			},
+			wantErr: "notify.distributor.endpoint",
+		},
+		{
+			name: "TokenEnvEmpty",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.TokenEnv = ""
+			},
+			wantErr: "notify.distributor.token_env",
+		},
+		{
+			name: "TokenEnvInvalid",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.TokenEnv = "1TOKEN"
+			},
+			wantErr: "notify.distributor.token_env",
+		},
+		{
+			name: "Timeout",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.Timeout = 0
+			},
+			wantErr: "notify.distributor.timeout",
+		},
+		{
+			name: "FailurePolicy",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.FailurePolicy = "warn"
+			},
+			wantErr: "notify.distributor.failure_policy",
+		},
+		{
+			name: "PipelineTemplateEmpty",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.PipelineIDTemplate = ""
+			},
+			wantErr: "notify.distributor.pipeline_id_template",
+		},
+		{
+			name: "PipelineTemplateUnknown",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.PipelineIDTemplate = "{unknown}"
+			},
+			wantErr: "notify.distributor.pipeline_id_template",
+		},
+		{
+			name: "PipelineTemplateRenderedEmpty",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.PipelineIDTemplate = "   "
+			},
+			wantErr: "notify.distributor.pipeline_id_template",
+		},
+		{
+			name: "BundleTemplate",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.BundleIDTemplate = "{unknown}"
+			},
+			wantErr: "notify.distributor.bundle_id_template",
+		},
+		{
+			name: "IdempotencyTemplate",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.IdempotencyKeyTemplate = "{unknown}"
+			},
+			wantErr: "notify.distributor.idempotency_key_template",
+		},
+		{
+			name: "ReportPathTemplatesEmpty",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.ReportPathTemplates = nil
+			},
+			wantErr: "notify.distributor.report_path_templates",
+		},
+		{
+			name: "ReportPathTemplateUnknown",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.ReportPathTemplates = []string{"{unknown}"}
+			},
+			wantErr: "notify.distributor.report_path_templates",
+		},
+		{
+			name: "ReportPathTemplateInvalidPath",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.ReportPathTemplates = []string{"/{batch_output_name}"}
+			},
+			wantErr: "notify.distributor.report_path_templates",
+		},
+		{
+			name: "ReportPathTemplateDuplicatePath",
+			mutate: func(cfg *Config) {
+				cfg.Notify.Distributor.ReportPathTemplates = []string{"latest.md", "latest.md"}
+			},
+			wantErr: "notify.distributor.report_path_templates",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg := Defaults()
+			cfg.Notify.Distributor.Enabled = true
+			cfg.Notify.Distributor.PipelineIDTemplate = "weatherreporter.{artifact_group}"
+			tt.mutate(&cfg)
+
+			err := Validate(cfg)
+			if err == nil {
+				t.Fatal("Validate() error = nil, want error")
+			}
+			if !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("error = %q, want %q", err.Error(), tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestDistributorTemplateRendering(t *testing.T) {
+	values := DistributorTemplateValues{
+		LocationID:      "home",
+		ReportID:        "daily",
+		RunID:           "20260607T120000Z",
+		ArtifactGroup:   "daily",
+		BatchOutputName: "daily.md",
+		ValidStartDate:  "2026-06-07",
+		ValidEndDate:    "2026-06-08",
+		ValidStartTime:  "1800",
+		ValidEndTime:    "0600",
+		ValidStartStamp: "2026-06-07T1800",
+		ValidEndStamp:   "2026-06-08T0600",
+		BundleID:        "weatherreporter.home.daily",
+	}
+
+	bundleID, err := RenderDistributorBundleID("weatherreporter.{location_id}.{report_id}", values)
+	if err != nil {
+		t.Fatalf("RenderDistributorBundleID() error = %v", err)
+	}
+	if bundleID != "weatherreporter.home.daily" {
+		t.Fatalf("bundleID = %q, want rendered value", bundleID)
+	}
+
+	pipelineID, err := RenderDistributorPipelineID("weatherreporter.{artifact_group}.{bundle_id}", values)
+	if err != nil {
+		t.Fatalf("RenderDistributorPipelineID() error = %v", err)
+	}
+	if pipelineID != "weatherreporter.daily.weatherreporter.home.daily" {
+		t.Fatalf("pipelineID = %q, want rendered pipeline ID", pipelineID)
+	}
+
+	idempotencyKey, err := RenderDistributorIdempotencyKey("{bundle_id}.{run_id}", values)
+	if err != nil {
+		t.Fatalf("RenderDistributorIdempotencyKey() error = %v", err)
+	}
+	if idempotencyKey != "weatherreporter.home.daily.20260607T120000Z" {
+		t.Fatalf("idempotencyKey = %q, want rendered run key", idempotencyKey)
+	}
+
+	reportPaths, err := RenderDistributorReportPaths([]string{
+		"{valid_start_date}/{artifact_group}/{valid_start_stamp}-{valid_end_stamp}-{run_id}.md",
+		"{valid_start_date}/{artifact_group}/latest.md",
+	}, values)
+	if err != nil {
+		t.Fatalf("RenderDistributorReportPaths() error = %v", err)
+	}
+	wantPaths := []string{
+		"2026-06-07/daily/2026-06-07T1800-2026-06-08T0600-20260607T120000Z.md",
+		"2026-06-07/daily/latest.md",
+	}
+	if strings.Join(reportPaths, "\n") != strings.Join(wantPaths, "\n") {
+		t.Fatalf("reportPaths = %#v, want %#v", reportPaths, wantPaths)
+	}
+}
+
+func TestDistributorTemplateRejectsUnknownAndMalformedVariables(t *testing.T) {
+	tests := []struct {
+		name     string
+		template string
+	}{
+		{name: "Unknown", template: "{unknown}"},
+		{name: "Unclosed", template: "{location_id"},
+		{name: "Unopened", template: "location_id}"},
+		{name: "Empty", template: "{}"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := RenderDistributorBundleID(tt.template, DistributorTemplateValues{})
+			if err == nil {
+				t.Fatal("RenderDistributorBundleID() error = nil, want error")
+			}
+		})
+	}
+}
+
+func TestDistributorReportPathValidation(t *testing.T) {
+	tests := []struct {
+		name string
+		path string
+		ok   bool
+	}{
+		{name: "Simple", path: "daily.md", ok: true},
+		{name: "Nested", path: "reports/daily.md", ok: true},
+		{name: "Empty", path: "", ok: false},
+		{name: "Absolute", path: "/reports/daily.md", ok: false},
+		{name: "WindowsAbsolute", path: "C:/reports/daily.md", ok: false},
+		{name: "Backslash", path: `reports\daily.md`, ok: false},
+		{name: "CurrentSegment", path: "reports/./daily.md", ok: false},
+		{name: "ParentSegment", path: "reports/../daily.md", ok: false},
+		{name: "EmptySegment", path: "reports//daily.md", ok: false},
+		{name: "Manifest", path: "reports/manifest.json", ok: false},
+		{name: "DistributorMetadata", path: "reports/.distributor.json", ok: false},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := ValidateDistributorReportPath("test.path", tt.path)
+			if tt.ok && err != nil {
+				t.Fatalf("ValidateDistributorReportPath() error = %v", err)
+			}
+			if !tt.ok && err == nil {
+				t.Fatal("ValidateDistributorReportPath() error = nil, want error")
+			}
+		})
+	}
+}
+
+func TestDistributorReportPathRenderingRejectsInvalidValues(t *testing.T) {
+	tests := []struct {
+		name            string
+		batchOutputName string
+	}{
+		{name: "Absolute", batchOutputName: "/daily.md"},
+		{name: "Backslash", batchOutputName: `reports\daily.md`},
+		{name: "CurrentSegment", batchOutputName: "./daily.md"},
+		{name: "ParentSegment", batchOutputName: "../daily.md"},
+		{name: "EmptySegment", batchOutputName: "reports//daily.md"},
+		{name: "Manifest", batchOutputName: "manifest.json"},
+		{name: "DistributorMetadata", batchOutputName: ".distributor.json"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			_, err := RenderDistributorReportPaths([]string{"{batch_output_name}"}, DistributorTemplateValues{
+				BatchOutputName: tt.batchOutputName,
+			})
+			if err == nil {
+				t.Fatal("RenderDistributorReportPaths() error = nil, want error")
+			}
+		})
+	}
+}
+
+func TestLoadFileLoadsSecretsBeforeReturningNotifyConfig(t *testing.T) {
+	dir := t.TempDir()
+	secretsDir := filepath.Join(dir, "secrets")
+	if err := os.Mkdir(secretsDir, 0o700); err != nil {
+		t.Fatalf("create secrets directory: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(secretsDir, "DISTRIBUTOR_UPLOAD_TOKEN"), []byte("loaded-token"), 0o600); err != nil {
+		t.Fatalf("write secret: %v", err)
+	}
+	path := filepath.Join(dir, "config.yml")
+	configYAML := "secrets:\n" +
+		"  directory: " + secretsDir + "\n" +
+		"notify:\n" +
+		"  distributor:\n" +
+		"    enabled: true\n" +
+		"    pipeline_id_template: weatherreporter.{report_id}\n"
+	if err := os.WriteFile(path, []byte(configYAML), 0o600); err != nil {
+		t.Fatalf("write config fixture: %v", err)
+	}
+
+	t.Setenv("DISTRIBUTOR_UPLOAD_TOKEN", "")
+	cfg, err := LoadFile(path)
+	if err != nil {
+		t.Fatalf("LoadFile() error = %v", err)
+	}
+	if cfg.Notify.Distributor.TokenEnv != "DISTRIBUTOR_UPLOAD_TOKEN" {
+		t.Fatalf("TokenEnv = %q, want DISTRIBUTOR_UPLOAD_TOKEN", cfg.Notify.Distributor.TokenEnv)
+	}
+	if got := os.Getenv(cfg.Notify.Distributor.TokenEnv); got != "loaded-token" {
+		t.Fatalf("environment value = %q, want loaded-token", got)
+	}
+}
+
+func TestLoadSecretsDisabledLeavesEnvironmentUnchanged(t *testing.T) {
+	t.Setenv("WEATHERREPORTER_DISABLED_SECRET", "original")
+
+	if err := loadSecrets(SecretsConfig{}); err != nil {
+		t.Fatalf("loadSecrets() error = %v", err)
+	}
+	if got := os.Getenv("WEATHERREPORTER_DISABLED_SECRET"); got != "original" {
+		t.Fatalf("environment value = %q, want original", got)
+	}
+}
+
+func TestLoadFileLoadsSecretsDirectory(t *testing.T) {
+	dir := t.TempDir()
+	secretsDir := filepath.Join(dir, "secrets")
+	if err := os.Mkdir(secretsDir, 0o700); err != nil {
+		t.Fatalf("create secrets directory: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(secretsDir, "WEATHERREPORTER_SECRET"), []byte("from-file"), 0o600); err != nil {
+		t.Fatalf("write secret: %v", err)
+	}
+	path := filepath.Join(dir, "config.yml")
+	if err := os.WriteFile(path, []byte("secrets:\n  directory: "+secretsDir+"\n"), 0o600); err != nil {
+		t.Fatalf("write config fixture: %v", err)
+	}
+
+	t.Setenv("WEATHERREPORTER_SECRET", "")
+	if _, err := LoadFile(path); err != nil {
+		t.Fatalf("LoadFile() error = %v", err)
+	}
+	if got := os.Getenv("WEATHERREPORTER_SECRET"); got != "from-file" {
+		t.Fatalf("environment value = %q, want from-file", got)
+	}
+}
+
+func TestLoadSecretsOverwritesExistingEnvironment(t *testing.T) {
+	dir := t.TempDir()
+	if err := os.WriteFile(filepath.Join(dir, "WEATHERREPORTER_SECRET"), []byte("from-file"), 0o600); err != nil {
+		t.Fatalf("write secret: %v", err)
+	}
+	t.Setenv("WEATHERREPORTER_SECRET", "existing")
+
+	if err := loadSecrets(SecretsConfig{Directory: dir}); err != nil {
+		t.Fatalf("loadSecrets() error = %v", err)
+	}
+	if got := os.Getenv("WEATHERREPORTER_SECRET"); got != "from-file" {
+		t.Fatalf("environment value = %q, want from-file", got)
+	}
+}
+
+func TestLoadSecretsTrimsOneTrailingLineEnding(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		want  string
+	}{
+		{name: "LF", input: "value\n", want: "value"},
+		{name: "CRLF", input: "value\r\n", want: "value"},
+		{name: "TwoLF", input: "value\n\n", want: "value\n"},
+		{name: "LoneCR", input: "value\r", want: "value\r"},
+		{name: "NoNewline", input: "value", want: "value"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			dir := t.TempDir()
+			if err := os.WriteFile(filepath.Join(dir, "WEATHERREPORTER_SECRET"), []byte(tt.input), 0o600); err != nil {
+				t.Fatalf("write secret: %v", err)
+			}
+			t.Setenv("WEATHERREPORTER_SECRET", "")
+
+			if err := loadSecrets(SecretsConfig{Directory: dir}); err != nil {
+				t.Fatalf("loadSecrets() error = %v", err)
+			}
+			if got := os.Getenv("WEATHERREPORTER_SECRET"); got != tt.want {
+				t.Fatalf("environment value = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestLoadSecretsRejectsInvalidDirectoryEntries(t *testing.T) {
+	tests := []struct {
+		name    string
+		setup   func(t *testing.T, dir string)
+		wantErr string
+	}{
+		{
+			name: "InvalidFilename",
+			setup: func(t *testing.T, dir string) {
+				if err := os.WriteFile(filepath.Join(dir, "1INVALID"), []byte("secret-value"), 0o600); err != nil {
+					t.Fatalf("write invalid secret: %v", err)
+				}
+			},
+			wantErr: "invalid environment variable name",
+		},
+		{
+			name: "Subdirectory",
+			setup: func(t *testing.T, dir string) {
+				if err := os.Mkdir(filepath.Join(dir, "SUBDIR"), 0o700); err != nil {
+					t.Fatalf("create subdirectory: %v", err)
+				}
+			},
+			wantErr: "not a directory",
+		},
+		{
+			name: "Symlink",
+			setup: func(t *testing.T, dir string) {
+				target := filepath.Join(dir, "TARGET")
+				if err := os.WriteFile(target, []byte("secret-value"), 0o600); err != nil {
+					t.Fatalf("write target: %v", err)
+				}
+				if err := os.Symlink(target, filepath.Join(dir, "SYMLINK")); err != nil {
+					t.Fatalf("create symlink: %v", err)
+				}
+			},
+			wantErr: "not a symlink",
+		},
+		{
+			name: "Unreadable",
+			setup: func(t *testing.T, dir string) {
+				path := filepath.Join(dir, "UNREADABLE")
+				if err := os.WriteFile(path, []byte("secret-value"), 0o600); err != nil {
+					t.Fatalf("write unreadable secret: %v", err)
+				}
+				if err := os.Chmod(path, 0o000); err != nil {
+					t.Fatalf("chmod unreadable secret: %v", err)
+				}
+				t.Cleanup(func() {
+					_ = os.Chmod(path, 0o600)
+				})
+			},
+			wantErr: "read secret file",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			dir := t.TempDir()
+			tt.setup(t, dir)
+
+			err := loadSecrets(SecretsConfig{Directory: dir})
+			if err == nil {
+				t.Fatal("loadSecrets() error = nil, want error")
+			}
+			if !strings.Contains(err.Error(), tt.wantErr) {
+				t.Fatalf("error = %q, want %q", err.Error(), tt.wantErr)
+			}
+			if strings.Contains(err.Error(), "secret-value") {
+				t.Fatalf("error = %q, want no secret value", err.Error())
+			}
+		})
+	}
+}
+
+func TestLoadSecretsRejectsMissingDirectory(t *testing.T) {
+	err := loadSecrets(SecretsConfig{Directory: filepath.Join(t.TempDir(), "missing")})
+	if err == nil {
+		t.Fatal("loadSecrets() error = nil, want missing directory error")
+	}
+	if !strings.Contains(err.Error(), "read secrets directory") {
+		t.Fatalf("error = %q, want read secrets directory context", err.Error())
+	}
+}

internal/config/defaults.go

@@ -18,6 +18,24 @@ func Defaults() Config {
 			Name:   "Brentwood",
 			Region: "St. Louis Metro",
 		},
+		Secrets: SecretsConfig{
+			Directory: "",
+		},
+		Notify: NotifyConfig{
+			Distributor: DistributorNotifyConfig{
+				Enabled:                false,
+				Endpoint:               "https://distributor.example.com",
+				TokenEnv:               "DISTRIBUTOR_UPLOAD_TOKEN",
+				Timeout:                30 * time.Second,
+				FailurePolicy:          NotifyFailureError,
+				PipelineIDTemplate:     "",
+				BundleIDTemplate:       "weatherreporter.{location_id}.{report_id}",
+				IdempotencyKeyTemplate: "{bundle_id}.{run_id}",
+				ReportPathTemplates: []string{
+					"{valid_start_date}/{artifact_group}/{valid_start_date}-{artifact_group}-{run_id}.md",
+				},
+			},
+		},
 		MissingSource: MissingSourceConfig{
 			Default: MissingSourceWarn,
 			Sources: map[string]MissingSourcePolicy{},
@@ -32,6 +50,7 @@ func Defaults() Config {
 			ReportsDir:       "reports",
 			DataPackagesDir:  "data-packages",
 			PreflightDir:     "preflight",
+			NotificationsDir: "notifications",
 		},
 		Dayparts: []DaypartConfig{
 			{Name: "overnight", Start: "00:00", End: "06:00"},
@@ -46,5 +65,6 @@ func Defaults() Config {
 			WindGustMilesPerHour:     10,
 			PrecipTimingShiftMinutes: 120,
 		},
+		Reports: map[string]ReportConfig{},
 	}
 }

internal/config/load.go

@@ -35,6 +35,14 @@ func Load(opts LoadOptions) (Config, error) {
 		cfg.WeatherAPI.Timezone = opts.Timezone
 	}
 
+	if err := normalizeReportModules(&cfg); err != nil {
+		return Config{}, err
+	}
+
+	if err := loadSecrets(cfg.Secrets); err != nil {
+		return Config{}, err
+	}
+
 	if err := Validate(cfg); err != nil {
 		return Config{}, err
 	}
@@ -57,5 +65,8 @@ func mergeFile(cfg *Config, path string) error {
 	if cfg.MissingSource.Sources == nil {
 		cfg.MissingSource.Sources = map[string]MissingSourcePolicy{}
 	}
+	if cfg.Reports == nil {
+		cfg.Reports = map[string]ReportConfig{}
+	}
 	return nil
 }

internal/config/notify_templates.go

@@ -0,0 +1,201 @@
+package config
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+)
+
+type DistributorTemplateValues struct {
+	LocationID      string
+	ReportID        string
+	RunID           string
+	ArtifactGroup   string
+	BatchOutputName string
+	ValidStartDate  string
+	ValidEndDate    string
+	ValidStartTime  string
+	ValidEndTime    string
+	ValidStartStamp string
+	ValidEndStamp   string
+	BundleID        string
+}
+
+var distributorTemplateVariables = map[string]struct{}{
+	"location_id":       {},
+	"report_id":         {},
+	"run_id":            {},
+	"artifact_group":    {},
+	"batch_output_name": {},
+	"valid_start_date":  {},
+	"valid_end_date":    {},
+	"valid_start_time":  {},
+	"valid_end_time":    {},
+	"valid_start_stamp": {},
+	"valid_end_stamp":   {},
+}
+
+var distributorIdempotencyTemplateVariables = map[string]struct{}{
+	"location_id":       {},
+	"report_id":         {},
+	"run_id":            {},
+	"artifact_group":    {},
+	"batch_output_name": {},
+	"valid_start_date":  {},
+	"valid_end_date":    {},
+	"valid_start_time":  {},
+	"valid_end_time":    {},
+	"valid_start_stamp": {},
+	"valid_end_stamp":   {},
+	"bundle_id":         {},
+}
+
+var distributorPipelineTemplateVariables = distributorIdempotencyTemplateVariables
+
+func RenderDistributorBundleID(template string, values DistributorTemplateValues) (string, error) {
+	return renderDistributorTemplate("notify.distributor.bundle_id_template", template, values, distributorTemplateVariables)
+}
+
+func RenderDistributorPipelineID(template string, values DistributorTemplateValues) (string, error) {
+	rendered, err := renderDistributorTemplate("notify.distributor.pipeline_id_template", template, values, distributorPipelineTemplateVariables)
+	if err != nil {
+		return "", err
+	}
+	if strings.TrimSpace(rendered) == "" {
+		return "", fmt.Errorf("notify.distributor.pipeline_id_template renders an empty pipeline id")
+	}
+	return rendered, nil
+}
+
+func RenderDistributorIdempotencyKey(template string, values DistributorTemplateValues) (string, error) {
+	return renderDistributorTemplate("notify.distributor.idempotency_key_template", template, values, distributorIdempotencyTemplateVariables)
+}
+
+func RenderDistributorReportPaths(templates []string, values DistributorTemplateValues) ([]string, error) {
+	if len(templates) == 0 {
+		return nil, fmt.Errorf("notify.distributor.report_path_templates must contain at least one entry")
+	}
+	paths := make([]string, 0, len(templates))
+	seen := make(map[string]struct{}, len(templates))
+	for i, template := range templates {
+		name := fmt.Sprintf("notify.distributor.report_path_templates[%d]", i)
+		rendered, err := renderDistributorTemplate(name, template, values, distributorTemplateVariables)
+		if err != nil {
+			return nil, err
+		}
+		if err := ValidateDistributorReportPath(name, rendered); err != nil {
+			return nil, err
+		}
+		if _, ok := seen[rendered]; ok {
+			return nil, fmt.Errorf("notify.distributor.report_path_templates renders duplicate path %q", rendered)
+		}
+		seen[rendered] = struct{}{}
+		paths = append(paths, rendered)
+	}
+	return paths, nil
+}
+
+func validateDistributorTemplate(name, template string, allowed map[string]struct{}) error {
+	_, err := renderDistributorTemplate(name, template, DistributorTemplateValues{}, allowed)
+	return err
+}
+
+func renderDistributorTemplate(name, template string, values DistributorTemplateValues, allowed map[string]struct{}) (string, error) {
+	var rendered strings.Builder
+	for i := 0; i < len(template); {
+		switch template[i] {
+		case '{':
+			end := strings.IndexByte(template[i+1:], '}')
+			if end < 0 {
+				return "", fmt.Errorf("%s contains an unclosed template variable", name)
+			}
+			variable := template[i+1 : i+1+end]
+			if variable == "" {
+				return "", fmt.Errorf("%s contains an empty template variable", name)
+			}
+			if _, ok := allowed[variable]; !ok {
+				return "", fmt.Errorf("%s contains unknown template variable %q", name, variable)
+			}
+			rendered.WriteString(distributorTemplateValue(variable, values))
+			i += end + 2
+		case '}':
+			return "", fmt.Errorf("%s contains an unopened template variable", name)
+		default:
+			rendered.WriteByte(template[i])
+			i++
+		}
+	}
+	return rendered.String(), nil
+}
+
+func distributorTemplateValue(variable string, values DistributorTemplateValues) string {
+	switch variable {
+	case "location_id":
+		return values.LocationID
+	case "report_id":
+		return values.ReportID
+	case "run_id":
+		return values.RunID
+	case "artifact_group":
+		return values.ArtifactGroup
+	case "batch_output_name":
+		return values.BatchOutputName
+	case "valid_start_date":
+		return values.ValidStartDate
+	case "valid_end_date":
+		return values.ValidEndDate
+	case "valid_start_time":
+		return values.ValidStartTime
+	case "valid_end_time":
+		return values.ValidEndTime
+	case "valid_start_stamp":
+		return values.ValidStartStamp
+	case "valid_end_stamp":
+		return values.ValidEndStamp
+	case "bundle_id":
+		return values.BundleID
+	default:
+		return ""
+	}
+}
+
+func ValidateDistributorReportPath(name, path string) error {
+	if path == "" {
+		return fmt.Errorf("%s renders an empty path", name)
+	}
+	if isDistributorAbsolutePath(path) {
+		return fmt.Errorf("%s must render a relative path", name)
+	}
+	if strings.Contains(path, "\\") {
+		return fmt.Errorf("%s must not render backslashes", name)
+	}
+
+	segments := strings.Split(path, "/")
+	for _, segment := range segments {
+		if segment == "" {
+			return fmt.Errorf("%s must not render empty path segments", name)
+		}
+		if segment == "." || segment == ".." {
+			return fmt.Errorf("%s must not render . or .. path segments", name)
+		}
+		if segment == "manifest.json" || segment == ".distributor.json" {
+			return fmt.Errorf("%s must not render reserved path segment %q", name, segment)
+		}
+	}
+
+	return nil
+}
+
+func isDistributorAbsolutePath(path string) bool {
+	if filepath.IsAbs(path) || strings.HasPrefix(path, "/") {
+		return true
+	}
+	if len(path) >= 3 && isASCIIAlpha(path[0]) && path[1] == ':' && (path[2] == '/' || path[2] == '\\') {
+		return true
+	}
+	return false
+}
+
+func isASCIIAlpha(ch byte) bool {
+	return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')
+}

internal/config/reports.go

@@ -0,0 +1,161 @@
+package config
+
+import (
+	"bytes"
+	"fmt"
+	"reflect"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gopkg.in/yaml.v3"
+)
+
+func (cfg Config) ReportModuleOverrides() (map[report.ID][]module.ConfigItem, error) {
+	overrides := map[report.ID][]module.ConfigItem{}
+	seenReports := map[report.ID]string{}
+	for key, reportCfg := range cfg.Reports {
+		id, err := report.IDForConfigKey(key)
+		if err != nil {
+			return nil, fmt.Errorf("reports.%s: %w", key, err)
+		}
+		if previous, ok := seenReports[id]; ok {
+			return nil, fmt.Errorf("reports.%s duplicates report override %q", key, previous)
+		}
+		seenReports[id] = key
+		if !reportCfg.deterministicModulesSet {
+			continue
+		}
+		overrides[id] = moduleItemsFromConfig(reportCfg.DeterministicModules)
+	}
+	return overrides, nil
+}
+
+func normalizeReportModules(cfg *Config) error {
+	if cfg.Reports == nil {
+		cfg.Reports = map[string]ReportConfig{}
+	}
+	moduleRegistry, err := briefing.DefaultModuleRegistry()
+	if err != nil {
+		return fmt.Errorf("initialize module registry: %w", err)
+	}
+	reportRegistry := report.DefaultRegistry()
+	seenReports := map[report.ID]string{}
+	for key, reportCfg := range cfg.Reports {
+		reportID, err := report.IDForConfigKey(key)
+		if err != nil {
+			return fmt.Errorf("reports.%s: %w", key, err)
+		}
+		if previous, ok := seenReports[reportID]; ok {
+			return fmt.Errorf("reports.%s duplicates report override %q", key, previous)
+		}
+		seenReports[reportID] = key
+		if _, err := reportRegistry.Lookup(reportID); err != nil {
+			return fmt.Errorf("reports.%s: %w", key, err)
+		}
+		if !reportCfg.deterministicModulesSet {
+			continue
+		}
+		for i, rawItem := range reportCfg.DeterministicModules {
+			options, err := normalizeModuleOptions(moduleRegistry, rawItem.ID, rawItem.Options)
+			if err != nil {
+				return fmt.Errorf("reports.%s.deterministic_modules[%d]: %w", key, i, err)
+			}
+			reportCfg.DeterministicModules[i].Options = options
+		}
+		items := moduleItemsFromConfig(reportCfg.DeterministicModules)
+		if err := moduleRegistry.ValidateComposition(reportID, items); err != nil {
+			return fmt.Errorf("reports.%s.deterministic_modules: %w", key, err)
+		}
+		cfg.Reports[key] = reportCfg
+	}
+	return nil
+}
+
+func validateReportModules(cfg Config) error {
+	if cfg.Reports == nil {
+		return nil
+	}
+	moduleRegistry, err := briefing.DefaultModuleRegistry()
+	if err != nil {
+		return fmt.Errorf("initialize module registry: %w", err)
+	}
+	reportRegistry := report.DefaultRegistry()
+	seenReports := map[report.ID]string{}
+	for key, reportCfg := range cfg.Reports {
+		reportID, err := report.IDForConfigKey(key)
+		if err != nil {
+			return fmt.Errorf("reports.%s: %w", key, err)
+		}
+		if previous, ok := seenReports[reportID]; ok {
+			return fmt.Errorf("reports.%s duplicates report override %q", key, previous)
+		}
+		seenReports[reportID] = key
+		if _, err := reportRegistry.Lookup(reportID); err != nil {
+			return fmt.Errorf("reports.%s: %w", key, err)
+		}
+		if !reportCfg.deterministicModulesSet {
+			continue
+		}
+		items := make([]module.ConfigItem, 0, len(reportCfg.DeterministicModules))
+		for i, rawItem := range reportCfg.DeterministicModules {
+			options := rawItem.Options
+			if options != nil {
+				normalized, err := normalizeModuleOptions(moduleRegistry, rawItem.ID, options)
+				if err != nil {
+					return fmt.Errorf("reports.%s.deterministic_modules[%d]: %w", key, i, err)
+				}
+				options = normalized
+			}
+			items = append(items, module.ConfigItem{ID: rawItem.ID, Options: options})
+		}
+		if err := moduleRegistry.ValidateComposition(reportID, items); err != nil {
+			return fmt.Errorf("reports.%s.deterministic_modules: %w", key, err)
+		}
+	}
+	return nil
+}
+
+func moduleItemsFromConfig(items []ModuleConfigItem) []module.ConfigItem {
+	out := make([]module.ConfigItem, 0, len(items))
+	for _, item := range items {
+		out = append(out, module.ConfigItem{ID: item.ID, Options: item.Options})
+	}
+	return out
+}
+
+func normalizeModuleOptions(registry briefing.ModuleRegistry, id module.ID, raw any) (any, error) {
+	if raw == nil {
+		return nil, nil
+	}
+	definition, err := registry.Lookup(id)
+	if err != nil {
+		return nil, err
+	}
+	if definition.DefaultOptions == nil {
+		return nil, fmt.Errorf("module %q does not accept options", id)
+	}
+	if err := definition.ValidateOptions(raw); err == nil {
+		return raw, nil
+	}
+	optionType := reflect.TypeOf(definition.DefaultOptions)
+	normalized, err := decodeKnownOptions(raw, optionType)
+	if err != nil {
+		return nil, fmt.Errorf("module %q options are invalid: %w", id, err)
+	}
+	return normalized, nil
+}
+
+func decodeKnownOptions(raw any, optionType reflect.Type) (any, error) {
+	data, err := yaml.Marshal(raw)
+	if err != nil {
+		return nil, err
+	}
+	target := reflect.New(optionType)
+	decoder := yaml.NewDecoder(bytes.NewReader(data))
+	decoder.KnownFields(true)
+	if err := decoder.Decode(target.Interface()); err != nil {
+		return nil, err
+	}
+	return target.Elem().Interface(), nil
+}

internal/config/secrets.go

@@ -0,0 +1,63 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+)
+
+var secretNamePattern = regexp.MustCompile(`^[A-Za-z_][A-Za-z0-9_]*$`)
+
+func loadSecrets(cfg SecretsConfig) error {
+	if cfg.Directory == "" {
+		return nil
+	}
+
+	entries, err := os.ReadDir(cfg.Directory)
+	if err != nil {
+		return fmt.Errorf("read secrets directory %q: %w", cfg.Directory, err)
+	}
+
+	for _, entry := range entries {
+		name := entry.Name()
+		if name == "" {
+			return fmt.Errorf("secrets directory %q contains an empty filename", cfg.Directory)
+		}
+		if !secretNamePattern.MatchString(name) {
+			return fmt.Errorf("secret file %q has invalid environment variable name", name)
+		}
+		if entry.Type()&os.ModeSymlink != 0 {
+			return fmt.Errorf("secret file %q must be a regular file, not a symlink", name)
+		}
+		if entry.IsDir() {
+			return fmt.Errorf("secret file %q must be a regular file, not a directory", name)
+		}
+
+		info, err := entry.Info()
+		if err != nil {
+			return fmt.Errorf("inspect secret file %q: %w", name, err)
+		}
+		if !info.Mode().IsRegular() {
+			return fmt.Errorf("secret file %q must be a regular file", name)
+		}
+
+		path := filepath.Join(cfg.Directory, name)
+		data, err := os.ReadFile(path)
+		if err != nil {
+			return fmt.Errorf("read secret file %q: %w", name, err)
+		}
+		value := string(data)
+		if strings.HasSuffix(value, "\r\n") {
+			value = strings.TrimSuffix(value, "\r\n")
+		} else {
+			value = strings.TrimSuffix(value, "\n")
+		}
+		if err := os.Setenv(name, value); err != nil {
+			return fmt.Errorf("set environment variable from secret file %q: %w", name, err)
+		}
+	}
+
+	return nil
+}

internal/config/validate.go

@@ -9,6 +9,9 @@ import (
 )
 
 func Validate(cfg Config) error {
+	if err := validateReportModules(cfg); err != nil {
+		return err
+	}
 	if cfg.WeatherAPI.BaseURL != "" {
 		parsed, err := url.Parse(cfg.WeatherAPI.BaseURL)
 		if err != nil || parsed.Scheme == "" || parsed.Host == "" {
@@ -49,6 +52,10 @@ func Validate(cfg Config) error {
 		}
 	}
 
+	if err := validateDistributorNotify(cfg.Notify.Distributor); err != nil {
+		return err
+	}
+
 	if cfg.Scriptorium.Binary == "" {
 		return fmt.Errorf("scriptorium.binary is required")
 	}
@@ -75,6 +82,76 @@ func Validate(cfg Config) error {
 	return nil
 }
 
+func validateDistributorNotify(cfg DistributorNotifyConfig) error {
+	if !cfg.Enabled {
+		return nil
+	}
+
+	parsed, err := url.Parse(cfg.Endpoint)
+	if err != nil || parsed.Scheme == "" || parsed.Host == "" {
+		return fmt.Errorf("notify.distributor.endpoint must be an absolute URL when enabled")
+	}
+	if cfg.TokenEnv == "" {
+		return fmt.Errorf("notify.distributor.token_env is required when enabled")
+	}
+	if !secretNamePattern.MatchString(cfg.TokenEnv) {
+		return fmt.Errorf("notify.distributor.token_env must be a valid environment variable name")
+	}
+	if cfg.Timeout <= 0 {
+		return fmt.Errorf("notify.distributor.timeout must be greater than zero when enabled")
+	}
+	if cfg.FailurePolicy != NotifyFailureError {
+		return fmt.Errorf("notify.distributor.failure_policy must be error when enabled")
+	}
+	if cfg.PipelineIDTemplate == "" {
+		return fmt.Errorf("notify.distributor.pipeline_id_template is required when enabled")
+	}
+	if err := validateDistributorTemplate("notify.distributor.pipeline_id_template", cfg.PipelineIDTemplate, distributorPipelineTemplateVariables); err != nil {
+		return err
+	}
+	if cfg.BundleIDTemplate == "" {
+		return fmt.Errorf("notify.distributor.bundle_id_template is required when enabled")
+	}
+	if err := validateDistributorTemplate("notify.distributor.bundle_id_template", cfg.BundleIDTemplate, distributorTemplateVariables); err != nil {
+		return err
+	}
+	if cfg.IdempotencyKeyTemplate == "" {
+		return fmt.Errorf("notify.distributor.idempotency_key_template is required when enabled")
+	}
+	if err := validateDistributorTemplate("notify.distributor.idempotency_key_template", cfg.IdempotencyKeyTemplate, distributorIdempotencyTemplateVariables); err != nil {
+		return err
+	}
+	if len(cfg.ReportPathTemplates) == 0 {
+		return fmt.Errorf("notify.distributor.report_path_templates must contain at least one entry when enabled")
+	}
+	values := DistributorTemplateValues{
+		LocationID:      "location",
+		ReportID:        "report",
+		RunID:           "run",
+		ArtifactGroup:   "artifact",
+		BatchOutputName: "report.md",
+		ValidStartDate:  "2026-05-29",
+		ValidEndDate:    "2026-05-30",
+		ValidStartTime:  "0000",
+		ValidEndTime:    "0000",
+		ValidStartStamp: "2026-05-29T0000",
+		ValidEndStamp:   "2026-05-30T0000",
+	}
+	bundleID, err := RenderDistributorBundleID(cfg.BundleIDTemplate, values)
+	if err != nil {
+		return err
+	}
+	values.BundleID = bundleID
+	if _, err := RenderDistributorPipelineID(cfg.PipelineIDTemplate, values); err != nil {
+		return err
+	}
+	if _, err := RenderDistributorReportPaths(cfg.ReportPathTemplates, values); err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func validatePolicy(name string, policy MissingSourcePolicy) error {
 	switch policy {
 	case MissingSourceError, MissingSourceWarn, MissingSourceNone:

internal/facts/facts.go

@@ -0,0 +1,229 @@
+// Package facts defines collected and derived report facts.
+package facts
+
+import (
+	"fmt"
+	"sort"
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+type CollectedFacts struct {
+	FetchedAt             time.Time
+	Observation           *weatherdata.Observation
+	Current               *weatherdata.Current
+	Hourly                *weatherdata.ForecastRun
+	Narrative             *weatherdata.ForecastRun
+	Alerts                *weatherdata.AlertRun
+	Discussion            *weatherdata.Discussion
+	Daily                 *weatherdata.ForecastRun
+	WeatherStory          *weatherdata.WeatherStory
+	SPCConvectiveOutlooks *weatherdata.ConvectiveOutlookRun
+
+	SourceProvenance []weatherdata.Source
+	SourceWarnings   []weatherdata.SourceWarning
+}
+
+func BuildCollected(bundle *weatherdata.Bundle) CollectedFacts {
+	if bundle == nil {
+		return CollectedFacts{}
+	}
+	return CollectedFacts{
+		FetchedAt:             bundle.FetchedAt,
+		Observation:           bundle.Observation,
+		Current:               bundle.Current,
+		Hourly:                bundle.Hourly,
+		Narrative:             bundle.Narrative,
+		Alerts:                bundle.Alerts,
+		Discussion:            bundle.Discussion,
+		Daily:                 bundle.Daily,
+		WeatherStory:          bundle.WeatherStory,
+		SPCConvectiveOutlooks: bundle.SPCConvectiveOutlooks,
+		SourceProvenance:      append([]weatherdata.Source(nil), bundle.Sources...),
+		SourceWarnings:        append([]weatherdata.SourceWarning(nil), bundle.Warnings...),
+	}
+}
+
+func (f CollectedFacts) Bundle() *weatherdata.Bundle {
+	return &weatherdata.Bundle{
+		FetchedAt:             f.FetchedAt,
+		Observation:           f.Observation,
+		Current:               f.Current,
+		Hourly:                f.Hourly,
+		Narrative:             f.Narrative,
+		Alerts:                f.Alerts,
+		Discussion:            f.Discussion,
+		Daily:                 f.Daily,
+		WeatherStory:          f.WeatherStory,
+		SPCConvectiveOutlooks: f.SPCConvectiveOutlooks,
+		Sources:               append([]weatherdata.Source(nil), f.SourceProvenance...),
+		Warnings:              append([]weatherdata.SourceWarning(nil), f.SourceWarnings...),
+	}
+}
+
+type BuildDerivedRequest struct {
+	Resolved  report.Resolved
+	Timezone  string
+	Dayparts  []forecast.DaypartDefinition
+	Collected CollectedFacts
+}
+
+type DerivedFacts struct {
+	ValidPeriodHourlyPeriods    []weatherdata.ForecastPeriod
+	ValidPeriodNarrativePeriods []weatherdata.ForecastPeriod
+	ValidPeriodDailyPeriods     []weatherdata.ForecastPeriod
+	AlertOverlaps               []forecast.AlertOverlap
+	SPCConvectiveOutlooks       []weatherdata.ConvectiveOutlook
+	SPCConvectiveDiscussions    []weatherdata.ConvectiveOutlookDiscussion
+	DailySummaries              []forecast.DailySummary
+	DaypartSummaries            []forecast.DaypartSummary
+	PrecipTiming                forecast.PrecipTiming
+	StormWindowSummary          *forecast.DaypartSummary
+}
+
+func (f DerivedFacts) FirstDailySummary() *forecast.DailySummary {
+	if len(f.DailySummaries) == 0 {
+		return nil
+	}
+	return &f.DailySummaries[0]
+}
+
+func BuildDerived(req BuildDerivedRequest) (DerivedFacts, error) {
+	if !req.Resolved.ValidPeriod.IsValid() {
+		return DerivedFacts{}, fmt.Errorf("resolved valid period is required")
+	}
+	location, err := timeutil.LoadLocation(req.Timezone)
+	if err != nil {
+		return DerivedFacts{}, fmt.Errorf("load report timezone %q: %w", req.Timezone, err)
+	}
+	bundle := req.Collected.Bundle()
+	period := req.Resolved.ValidPeriod
+	spcOutlooks, spcDiscussions := selectSPCConvectiveOutlooks(req.Collected.SPCConvectiveOutlooks, period)
+	derived := DerivedFacts{
+		ValidPeriodHourlyPeriods:    forecast.SelectHourlyPeriods(req.Collected.Hourly, period),
+		ValidPeriodNarrativePeriods: forecast.SelectHourlyPeriods(req.Collected.Narrative, period),
+		ValidPeriodDailyPeriods:     forecast.SelectHourlyPeriods(req.Collected.Daily, period),
+		AlertOverlaps:               forecast.AlertOverlaps(req.Collected.Alerts, period),
+		SPCConvectiveOutlooks:       spcOutlooks,
+		SPCConvectiveDiscussions:    spcDiscussions,
+	}
+	derived.PrecipTiming = forecast.BuildPrecipTiming(derived.ValidPeriodHourlyPeriods)
+
+	switch req.Resolved.Definition.ID {
+	case report.Hourly:
+	case report.Daily, report.Today, report.Tomorrow:
+		summary, err := forecast.BuildDailySummary(bundle, period.Start, location, req.Dayparts)
+		if err != nil {
+			return DerivedFacts{}, err
+		}
+		derived.DailySummaries = []forecast.DailySummary{*summary}
+	case report.ThreeDay, report.Weekend:
+		summaries, err := forecast.BuildPeriodDailySummaries(bundle, period, location, req.Dayparts)
+		if err != nil {
+			return DerivedFacts{}, err
+		}
+		derived.DailySummaries = summaries
+	case report.Storm:
+		summary := forecast.SummarizeDaypart("storm window", period, derived.ValidPeriodHourlyPeriods)
+		summary.AlertOverlaps = derived.AlertOverlaps
+		derived.StormWindowSummary = &summary
+	default:
+		return DerivedFacts{}, fmt.Errorf("derived facts are not implemented for report %q", req.Resolved.Definition.ID)
+	}
+
+	derived.DaypartSummaries = collectDaypartSummaries(derived)
+	return derived, nil
+}
+
+func collectDaypartSummaries(derived DerivedFacts) []forecast.DaypartSummary {
+	var out []forecast.DaypartSummary
+	for _, summary := range derived.DailySummaries {
+		out = append(out, summary.Dayparts...)
+	}
+	if derived.StormWindowSummary != nil {
+		out = append(out, *derived.StormWindowSummary)
+	}
+	return out
+}
+
+func selectSPCConvectiveOutlooks(run *weatherdata.ConvectiveOutlookRun, period timeutil.Period) ([]weatherdata.ConvectiveOutlook, []weatherdata.ConvectiveOutlookDiscussion) {
+	if run == nil {
+		return nil, nil
+	}
+
+	outlooks := make([]weatherdata.ConvectiveOutlook, 0, len(run.Outlooks))
+	days := map[int]struct{}{}
+	for _, outlook := range run.Outlooks {
+		outlookPeriod := timeutil.Period{Start: outlook.ValidFrom, End: outlook.ValidTo}
+		if !outlookPeriod.IsValid() || !outlookPeriod.Overlaps(period) {
+			continue
+		}
+		outlooks = append(outlooks, outlook)
+		days[outlook.Day] = struct{}{}
+	}
+	sort.SliceStable(outlooks, func(i, j int) bool {
+		left := outlooks[i]
+		right := outlooks[j]
+		if left.Day != right.Day {
+			return left.Day < right.Day
+		}
+		if left.OutlookType != right.OutlookType {
+			return left.OutlookType < right.OutlookType
+		}
+		leftRank, leftRankOK := severityRank(left)
+		rightRank, rightRankOK := severityRank(right)
+		if leftRankOK != rightRankOK {
+			return leftRankOK
+		}
+		if leftRankOK && leftRank != rightRank {
+			return leftRank > rightRank
+		}
+		if !left.ValidFrom.Equal(right.ValidFrom) {
+			return left.ValidFrom.Before(right.ValidFrom)
+		}
+		if left.Label != right.Label {
+			return left.Label < right.Label
+		}
+		return left.ID < right.ID
+	})
+
+	discussions := make([]weatherdata.ConvectiveOutlookDiscussion, 0, len(run.Discussions))
+	for _, discussion := range run.Discussions {
+		if _, ok := days[discussion.Day]; ok {
+			discussions = append(discussions, discussion)
+		}
+	}
+	sort.SliceStable(discussions, func(i, j int) bool {
+		left := discussions[i]
+		right := discussions[j]
+		if left.Day != right.Day {
+			return left.Day < right.Day
+		}
+		if left.UpdatedAt != nil && right.UpdatedAt != nil && !left.UpdatedAt.Equal(*right.UpdatedAt) {
+			return left.UpdatedAt.Before(*right.UpdatedAt)
+		}
+		if (left.UpdatedAt != nil) != (right.UpdatedAt != nil) {
+			return left.UpdatedAt != nil
+		}
+		if left.Headline != right.Headline {
+			return left.Headline < right.Headline
+		}
+		if left.Summary != right.Summary {
+			return left.Summary < right.Summary
+		}
+		return left.Discussion < right.Discussion
+	})
+
+	return outlooks, discussions
+}
+
+func severityRank(outlook weatherdata.ConvectiveOutlook) (int, bool) {
+	if outlook.SeverityRank == nil {
+		return 0, false
+	}
+	return *outlook.SeverityRank, true
+}

internal/facts/facts_test.go

@@ -0,0 +1,507 @@
+package facts
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+	"time"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/forecast"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
+)
+
+func TestBuildCollectedCopiesBundleFactsAndKeepsSourcesSeparate(t *testing.T) {
+	fetchedAt := mustParse("2026-05-29T10:00:00Z")
+	bundle := &weatherdata.Bundle{
+		FetchedAt: fetchedAt,
+		Current:   &weatherdata.Current{ConditionText: "Clear"},
+		Hourly:    &weatherdata.ForecastRun{Product: "hourly"},
+		SPCConvectiveOutlooks: &weatherdata.ConvectiveOutlookRun{
+			Product: "convective_outlook",
+			Outlooks: []weatherdata.ConvectiveOutlook{{
+				ID:    "day1-categorical-slight",
+				Label: "SLGT",
+			}},
+		},
+		Sources:  []weatherdata.Source{{Name: "hourly"}},
+		Warnings: []weatherdata.SourceWarning{{Source: "discussion", Code: "missing_source"}},
+	}
+
+	collected := BuildCollected(bundle)
+	if collected.FetchedAt != fetchedAt || collected.Current.ConditionText != "Clear" || collected.Hourly.Product != "hourly" {
+		t.Fatalf("CollectedFacts = %#v, want source facts copied from bundle", collected)
+	}
+	if collected.SPCConvectiveOutlooks == nil || collected.SPCConvectiveOutlooks.Outlooks[0].Label != "SLGT" {
+		t.Fatalf("SPCConvectiveOutlooks = %#v, want source copied from bundle", collected.SPCConvectiveOutlooks)
+	}
+	if len(collected.SourceProvenance) != 1 || collected.SourceProvenance[0].Name != "hourly" {
+		t.Fatalf("SourceProvenance = %#v, want hourly source", collected.SourceProvenance)
+	}
+	if len(collected.SourceWarnings) != 1 || collected.SourceWarnings[0].Source != "discussion" {
+		t.Fatalf("SourceWarnings = %#v, want discussion warning", collected.SourceWarnings)
+	}
+
+	bundle.Sources[0].Name = "changed"
+	bundle.Warnings[0].Source = "changed"
+	if collected.SourceProvenance[0].Name != "hourly" || collected.SourceWarnings[0].Source != "discussion" {
+		t.Fatalf("collected source slices changed after bundle mutation: %#v %#v", collected.SourceProvenance, collected.SourceWarnings)
+	}
+
+	roundTrip := collected.Bundle()
+	if roundTrip.SPCConvectiveOutlooks == nil || roundTrip.SPCConvectiveOutlooks.Outlooks[0].ID != "day1-categorical-slight" {
+		t.Fatalf("Bundle().SPCConvectiveOutlooks = %#v, want collected source restored", roundTrip.SPCConvectiveOutlooks)
+	}
+}
+
+func TestBuildDerivedDailySlicesDaypartsAndAlerts(t *testing.T) {
+	location := testLocation()
+	resolved := resolveForTest(t, report.Daily, mustParse("2026-05-29T08:00:00-05:00"), location)
+	derived, err := BuildDerived(BuildDerivedRequest{
+		Resolved:  resolved,
+		Timezone:  location.String(),
+		Dayparts:  testDayparts(),
+		Collected: BuildCollected(testBundle(location)),
+	})
+	if err != nil {
+		t.Fatalf("BuildDerived() error = %v", err)
+	}
+
+	if len(derived.ValidPeriodHourlyPeriods) != 4 {
+		t.Fatalf("ValidPeriodHourlyPeriods length = %d, want 4", len(derived.ValidPeriodHourlyPeriods))
+	}
+	if len(derived.ValidPeriodNarrativePeriods) != 1 {
+		t.Fatalf("ValidPeriodNarrativePeriods length = %d, want 1", len(derived.ValidPeriodNarrativePeriods))
+	}
+	if len(derived.AlertOverlaps) != 1 || derived.AlertOverlaps[0].Event != "Flood Watch" {
+		t.Fatalf("AlertOverlaps = %#v, want Flood Watch overlap", derived.AlertOverlaps)
+	}
+	if len(derived.DailySummaries) != 1 || len(derived.DailySummaries[0].Dayparts) != 3 {
+		t.Fatalf("DailySummaries = %#v, want one summary with dayparts", derived.DailySummaries)
+	}
+	if len(derived.DaypartSummaries) != 3 {
+		t.Fatalf("DaypartSummaries length = %d, want 3", len(derived.DaypartSummaries))
+	}
+	if derived.PrecipTiming.FirstPrecipitation == nil || derived.PrecipTiming.FirstPrecipitation.Time.Format(time.RFC3339) != "2026-05-29T08:00:00-05:00" {
+		t.Fatalf("PrecipTiming.FirstPrecipitation = %#v, want valid-period rain start", derived.PrecipTiming.FirstPrecipitation)
+	}
+	if derived.PrecipTiming.LastPrecipitation == nil || derived.PrecipTiming.LastPrecipitation.Time.Format(time.RFC3339) != "2026-05-29T14:00:00-05:00" {
+		t.Fatalf("PrecipTiming.LastPrecipitation = %#v, want final closed window end", derived.PrecipTiming.LastPrecipitation)
+	}
+	if len(derived.PrecipTiming.PrecipitationWindows) != 2 {
+		t.Fatalf("PrecipitationWindows = %#v, want two threshold windows", derived.PrecipTiming.PrecipitationWindows)
+	}
+	if !derived.PrecipTiming.ThunderMentioned {
+		t.Fatal("PrecipTiming.ThunderMentioned = false, want true")
+	}
+	morning := derived.DailySummaries[0].Dayparts[0]
+	if len(morning.HourlyPeriods) != 1 || morning.MaxPrecipitationProbability == nil || morning.MaxPrecipitationProbability.Value != 60 {
+		t.Fatalf("morning summary = %#v, want sliced hour with precip max", morning)
+	}
+}
+
+func TestBuildDerivedOutlookBuildsPartialDaySummariesWithMissingOptionalSources(t *testing.T) {
+	location := testLocation()
+	resolved := resolveForTest(t, report.ThreeDay, mustParse("2026-05-29T08:00:00-05:00"), location)
+	bundle := testBundle(location)
+	bundle.Narrative = nil
+	bundle.Alerts = nil
+	bundle.Discussion = nil
+	bundle.WeatherStory = nil
+
+	derived, err := BuildDerived(BuildDerivedRequest{
+		Resolved:  resolved,
+		Timezone:  location.String(),
+		Dayparts:  testDayparts(),
+		Collected: BuildCollected(bundle),
+	})
+	if err != nil {
+		t.Fatalf("BuildDerived() error = %v", err)
+	}
+
+	if len(derived.DailySummaries) != 3 {
+		t.Fatalf("DailySummaries length = %d, want 3 partial-day summaries", len(derived.DailySummaries))
+	}
+	if len(derived.ValidPeriodNarrativePeriods) != 0 {
+		t.Fatalf("ValidPeriodNarrativePeriods length = %d, want 0 for missing optional source", len(derived.ValidPeriodNarrativePeriods))
+	}
+	if len(derived.AlertOverlaps) != 0 {
+		t.Fatalf("AlertOverlaps = %#v, want none for missing optional alerts", derived.AlertOverlaps)
+	}
+	if derived.DailySummaries[0].Period.Start.Format(time.RFC3339) != "2026-05-29T08:00:00-05:00" {
+		t.Fatalf("first summary start = %s, want valid-period start", derived.DailySummaries[0].Period.Start.Format(time.RFC3339))
+	}
+}
+
+func TestBuildDerivedWeekendAndTomorrow(t *testing.T) {
+	location := testLocation()
+	for _, id := range []report.ID{report.Tomorrow, report.Weekend} {
+		resolved := resolveForTest(t, id, mustParse("2026-05-29T08:00:00-05:00"), location)
+		derived, err := BuildDerived(BuildDerivedRequest{
+			Resolved:  resolved,
+			Timezone:  location.String(),
+			Dayparts:  testDayparts(),
+			Collected: BuildCollected(testBundle(location)),
+		})
+		if err != nil {
+			t.Fatalf("BuildDerived(%s) error = %v", id, err)
+		}
+		if len(derived.DailySummaries) == 0 {
+			t.Fatalf("BuildDerived(%s) DailySummaries length = 0, want summaries", id)
+		}
+	}
+}
+
+func TestBuildDerivedHourlyUsesRollingWindowFacts(t *testing.T) {
+	location := testLocation()
+	resolved := resolveForTest(t, report.Hourly, mustParse("2026-05-29T08:30:00-05:00"), location)
+	bundle := testBundle(location)
+	bundle.Alerts = &weatherdata.AlertRun{Alerts: []json.RawMessage{
+		json.RawMessage(`{"event":"Expired Advisory","headline":"Ends at start","severity":"Minor","effective":"2026-05-29T05:00:00-05:00","expires":"2026-05-29T08:30:00-05:00"}`),
+		json.RawMessage(`{"event":"Flood Watch","headline":"Flooding possible","severity":"Moderate","effective":"2026-05-29T11:00:00-05:00","expires":"2026-05-29T15:00:00-05:00"}`),
+		json.RawMessage(`{"event":"Evening Advisory","headline":"Starts at end","severity":"Minor","effective":"2026-05-29T14:30:00-05:00","expires":"2026-05-29T18:00:00-05:00"}`),
+	}}
+	bundle.SPCConvectiveOutlooks = testConvectiveOutlookRun(location)
+
+	derived, err := BuildDerived(BuildDerivedRequest{
+		Resolved:  resolved,
+		Timezone:  location.String(),
+		Dayparts:  testDayparts(),
+		Collected: BuildCollected(bundle),
+	})
+	if err != nil {
+		t.Fatalf("BuildDerived() error = %v", err)
+	}
+
+	if len(derived.ValidPeriodHourlyPeriods) != 4 {
+		t.Fatalf("ValidPeriodHourlyPeriods length = %d, want 4 rolling-window hours", len(derived.ValidPeriodHourlyPeriods))
+	}
+	if derived.ValidPeriodHourlyPeriods[0].StartTime.Format(time.RFC3339) != "2026-05-29T08:00:00-05:00" ||
+		derived.ValidPeriodHourlyPeriods[3].StartTime.Format(time.RFC3339) != "2026-05-29T14:00:00-05:00" {
+		t.Fatalf("ValidPeriodHourlyPeriods = %#v, want only hours overlapping 8:30 AM-2:30 PM", derived.ValidPeriodHourlyPeriods)
+	}
+	if len(derived.ValidPeriodNarrativePeriods) != 1 {
+		t.Fatalf("ValidPeriodNarrativePeriods length = %d, want overlapping narrative period", len(derived.ValidPeriodNarrativePeriods))
+	}
+	if len(derived.DailySummaries) != 0 || len(derived.DaypartSummaries) != 0 || derived.StormWindowSummary != nil {
+		t.Fatalf("hourly summaries daily=%#v daypart=%#v storm=%#v, want none", derived.DailySummaries, derived.DaypartSummaries, derived.StormWindowSummary)
+	}
+	if derived.PrecipTiming.FirstPrecipitation == nil || derived.PrecipTiming.FirstPrecipitation.Time.Format(time.RFC3339) != "2026-05-29T08:00:00-05:00" {
+		t.Fatalf("PrecipTiming.FirstPrecipitation = %#v, want first selected rainy hour", derived.PrecipTiming.FirstPrecipitation)
+	}
+	if derived.PrecipTiming.LastPrecipitation == nil || derived.PrecipTiming.LastPrecipitation.Time.Format(time.RFC3339) != "2026-05-29T14:00:00-05:00" {
+		t.Fatalf("PrecipTiming.LastPrecipitation = %#v, want final selected rainy window end", derived.PrecipTiming.LastPrecipitation)
+	}
+	if len(derived.PrecipTiming.PrecipitationWindows) != 2 {
+		t.Fatalf("PrecipTiming.PrecipitationWindows = %#v, want two hourly windows", derived.PrecipTiming.PrecipitationWindows)
+	}
+	if len(derived.AlertOverlaps) != 1 || derived.AlertOverlaps[0].Event != "Flood Watch" {
+		t.Fatalf("AlertOverlaps = %#v, want only alert overlapping hourly period", derived.AlertOverlaps)
+	}
+	if derived.AlertOverlaps[0].Overlap.End.Format(time.RFC3339) != "2026-05-29T14:30:00-05:00" {
+		t.Fatalf("Alert overlap end = %s, want clipped to hourly end", derived.AlertOverlaps[0].Overlap.End.Format(time.RFC3339))
+	}
+	if got, want := outlookIDs(derived.SPCConvectiveOutlooks), []string{"fri-high", "fri-storm", "fri-low", "fri-missing-rank", "fri-probabilistic"}; strings.Join(got, ",") != strings.Join(want, ",") {
+		t.Fatalf("SPCConvectiveOutlooks IDs = %#v, want %#v", got, want)
+	}
+	if got, want := discussionHeadlines(derived.SPCConvectiveDiscussions), []string{"day1 early", "day1 late"}; strings.Join(got, ",") != strings.Join(want, ",") {
+		t.Fatalf("SPCConvectiveDiscussions = %#v, want retained discussions for overlapping SPC day %#v", got, want)
+	}
+}
+
+func TestBuildDerivedStormBuildsWindowSummary(t *testing.T) {
+	location := testLocation()
+	resolved := resolveStormForTest(t, location)
+	derived, err := BuildDerived(BuildDerivedRequest{
+		Resolved:  resolved,
+		Timezone:  location.String(),
+		Dayparts:  testDayparts(),
+		Collected: BuildCollected(testBundle(location)),
+	})
+	if err != nil {
+		t.Fatalf("BuildDerived() error = %v", err)
+	}
+
+	if len(derived.ValidPeriodHourlyPeriods) != 2 {
+		t.Fatalf("ValidPeriodHourlyPeriods length = %d, want 2 storm-window hours", len(derived.ValidPeriodHourlyPeriods))
+	}
+	if len(derived.ValidPeriodDailyPeriods) != 1 {
+		t.Fatalf("ValidPeriodDailyPeriods length = %d, want 1 daily period", len(derived.ValidPeriodDailyPeriods))
+	}
+	if derived.StormWindowSummary == nil {
+		t.Fatal("StormWindowSummary = nil, want summary")
+	}
+	if derived.StormWindowSummary.MaxPrecipitationProbability == nil || derived.StormWindowSummary.MaxPrecipitationProbability.Value != 80 {
+		t.Fatalf("StormWindowSummary = %#v, want peak precipitation", derived.StormWindowSummary)
+	}
+	if len(derived.StormWindowSummary.AlertOverlaps) != 1 {
+		t.Fatalf("StormWindowSummary.AlertOverlaps length = %d, want 1", len(derived.StormWindowSummary.AlertOverlaps))
+	}
+}
+
+func TestBuildDerivedSelectsSPCConvectiveOutlooksByValidPeriod(t *testing.T) {
+	location := testLocation()
+	now := mustParse("2026-05-29T08:00:00-05:00")
+	bundle := testBundle(location)
+	bundle.SPCConvectiveOutlooks = testConvectiveOutlookRun(location)
+
+	tests := []struct {
+		name           string
+		resolved       report.Resolved
+		wantOutlookIDs []string
+		wantDiscussion []string
+	}{
+		{
+			name:           "daily",
+			resolved:       resolveForTest(t, report.Daily, now, location),
+			wantOutlookIDs: []string{"fri-high", "fri-storm", "fri-low", "fri-missing-rank", "fri-probabilistic"},
+			wantDiscussion: []string{"day1 early", "day1 late"},
+		},
+		{
+			name:           "daily tomorrow",
+			resolved:       resolveForTest(t, report.Tomorrow, now, location),
+			wantOutlookIDs: []string{"sat-enhanced"},
+			wantDiscussion: []string{"day2"},
+		},
+		{
+			name:           "three day",
+			resolved:       resolveForTest(t, report.ThreeDay, now, location),
+			wantOutlookIDs: []string{"fri-high", "fri-storm", "fri-low", "fri-missing-rank", "fri-probabilistic", "sat-enhanced", "sun-slight"},
+			wantDiscussion: []string{"day1 early", "day1 late", "day2", "day3"},
+		},
+		{
+			name:           "weekend",
+			resolved:       resolveForTest(t, report.Weekend, now, location),
+			wantOutlookIDs: []string{"sat-enhanced", "sun-slight"},
+			wantDiscussion: []string{"day2", "day3"},
+		},
+		{
+			name:           "storm",
+			resolved:       resolveStormForTest(t, location),
+			wantOutlookIDs: []string{"fri-storm", "fri-low"},
+			wantDiscussion: []string{"day1 early", "day1 late"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			derived, err := BuildDerived(BuildDerivedRequest{
+				Resolved:  tt.resolved,
+				Timezone:  location.String(),
+				Dayparts:  testDayparts(),
+				Collected: BuildCollected(bundle),
+			})
+			if err != nil {
+				t.Fatalf("BuildDerived() error = %v", err)
+			}
+			if got := outlookIDs(derived.SPCConvectiveOutlooks); strings.Join(got, ",") != strings.Join(tt.wantOutlookIDs, ",") {
+				t.Fatalf("SPCConvectiveOutlooks IDs = %#v, want %#v", got, tt.wantOutlookIDs)
+			}
+			if got := discussionHeadlines(derived.SPCConvectiveDiscussions); strings.Join(got, ",") != strings.Join(tt.wantDiscussion, ",") {
+				t.Fatalf("SPCConvectiveDiscussions = %#v, want %#v", got, tt.wantDiscussion)
+			}
+		})
+	}
+}
+
+func TestBuildDerivedUnsupportedReportReturnsActionableError(t *testing.T) {
+	location := testLocation()
+	resolved := resolveForTest(t, report.Hourly, mustParse("2026-05-29T08:00:00-05:00"), location)
+	resolved.Definition.ID = report.ID("future_report")
+
+	_, err := BuildDerived(BuildDerivedRequest{
+		Resolved:  resolved,
+		Timezone:  location.String(),
+		Dayparts:  testDayparts(),
+		Collected: BuildCollected(testBundle(location)),
+	})
+	if err == nil || !strings.Contains(err.Error(), `derived facts are not implemented for report "future_report"`) {
+		t.Fatalf("BuildDerived() error = %v, want actionable unsupported report error", err)
+	}
+}
+
+func TestBuildDerivedSPCConvectiveOutlooksDistinguishesMissingAndCheckedEmpty(t *testing.T) {
+	location := testLocation()
+	resolved := resolveForTest(t, report.Daily, mustParse("2026-05-29T08:00:00-05:00"), location)
+	bundle := testBundle(location)
+	bundle.SPCConvectiveOutlooks = nil
+
+	derived, err := BuildDerived(BuildDerivedRequest{
+		Resolved:  resolved,
+		Timezone:  location.String(),
+		Dayparts:  testDayparts(),
+		Collected: BuildCollected(bundle),
+	})
+	if err != nil {
+		t.Fatalf("BuildDerived(missing source) error = %v", err)
+	}
+	if derived.SPCConvectiveOutlooks != nil || derived.SPCConvectiveDiscussions != nil {
+		t.Fatalf("missing source derived outlooks=%#v discussions=%#v, want nil slices", derived.SPCConvectiveOutlooks, derived.SPCConvectiveDiscussions)
+	}
+
+	bundle.SPCConvectiveOutlooks = &weatherdata.ConvectiveOutlookRun{Outlooks: []weatherdata.ConvectiveOutlook{}, Discussions: []weatherdata.ConvectiveOutlookDiscussion{}}
+	derived, err = BuildDerived(BuildDerivedRequest{
+		Resolved:  resolved,
+		Timezone:  location.String(),
+		Dayparts:  testDayparts(),
+		Collected: BuildCollected(bundle),
+	})
+	if err != nil {
+		t.Fatalf("BuildDerived(checked empty source) error = %v", err)
+	}
+	if derived.SPCConvectiveOutlooks == nil || len(derived.SPCConvectiveOutlooks) != 0 {
+		t.Fatalf("checked empty outlooks = %#v, want non-nil empty slice", derived.SPCConvectiveOutlooks)
+	}
+	if derived.SPCConvectiveDiscussions == nil || len(derived.SPCConvectiveDiscussions) != 0 {
+		t.Fatalf("checked empty discussions = %#v, want non-nil empty slice", derived.SPCConvectiveDiscussions)
+	}
+}
+
+func testBundle(location *time.Location) *weatherdata.Bundle {
+	return &weatherdata.Bundle{
+		FetchedAt: mustParse("2026-05-29T10:00:00Z"),
+		Current:   &weatherdata.Current{ConditionText: "Cloudy"},
+		Hourly: &weatherdata.ForecastRun{Periods: []weatherdata.ForecastPeriod{
+			hour(location, "2026-05-29T08:00:00-05:00", "2026-05-29T09:00:00-05:00", "Showers", 60, 10),
+			hour(location, "2026-05-29T12:00:00-05:00", "2026-05-29T13:00:00-05:00", "Thunderstorms", 80, 35),
+			hour(location, "2026-05-29T13:00:00-05:00", "2026-05-29T14:00:00-05:00", "Heavy rain", 70, 25),
+			hour(location, "2026-05-29T14:00:00-05:00", "2026-05-29T15:00:00-05:00", "Hot", 10, 15),
+			hour(location, "2026-05-30T09:00:00-05:00", "2026-05-30T10:00:00-05:00", "Clear", 0, 5),
+		}},
+		Narrative: &weatherdata.ForecastRun{Periods: []weatherdata.ForecastPeriod{
+			hour(location, "2026-05-29T06:00:00-05:00", "2026-05-29T18:00:00-05:00", "Storm chances peak midday.", 70, 20),
+		}},
+		Daily: &weatherdata.ForecastRun{Periods: []weatherdata.ForecastPeriod{
+			hour(location, "2026-05-29T00:00:00-05:00", "2026-05-30T00:00:00-05:00", "Storms", 70, 20),
+		}},
+		Alerts: &weatherdata.AlertRun{Alerts: []json.RawMessage{
+			json.RawMessage(`{"event":"Flood Watch","headline":"Flooding possible","severity":"Moderate","effective":"2026-05-29T11:00:00-05:00","expires":"2026-05-29T15:00:00-05:00"}`),
+		}},
+		Discussion:   &weatherdata.Discussion{Product: "discussion", KeyMessages: []string{"Storm confidence is moderate."}},
+		WeatherStory: &weatherdata.WeatherStory{Title: "Storm Risk"},
+		Sources:      []weatherdata.Source{{Name: "hourly"}},
+		Warnings:     []weatherdata.SourceWarning{{Source: "daily", Code: "missing_source"}},
+	}
+}
+
+func testConvectiveOutlookRun(location *time.Location) *weatherdata.ConvectiveOutlookRun {
+	rank1 := 1
+	rank2 := 2
+	rank3 := 3
+	rank4 := 4
+	rank5 := 5
+	return &weatherdata.ConvectiveOutlookRun{
+		Outlooks: []weatherdata.ConvectiveOutlook{
+			convectiveOutlook(location, "mon-outside", 4, "categorical", "MDT", &rank5, "2026-06-01T00:00:00-05:00", "2026-06-02T00:00:00-05:00"),
+			convectiveOutlook(location, "sun-slight", 3, "categorical", "SLGT", &rank3, "2026-05-31T06:00:00-05:00", "2026-06-01T00:00:00-05:00"),
+			convectiveOutlook(location, "fri-low", 1, "categorical", "MRGL", &rank1, "2026-05-29T06:00:00-05:00", "2026-05-29T12:00:00-05:00"),
+			convectiveOutlook(location, "fri-missing-rank", 1, "categorical", "GEN", nil, "2026-05-29T08:00:00-05:00", "2026-05-29T10:00:00-05:00"),
+			convectiveOutlook(location, "sat-enhanced", 2, "categorical", "ENH", &rank4, "2026-05-30T01:00:00-05:00", "2026-05-30T12:00:00-05:00"),
+			convectiveOutlook(location, "fri-high", 1, "categorical", "SLGT", &rank3, "2026-05-29T07:00:00-05:00", "2026-05-29T11:00:00-05:00"),
+			convectiveOutlook(location, "fri-probabilistic", 1, "probabilistic", "5%", &rank2, "2026-05-29T05:00:00-05:00", "2026-05-29T10:00:00-05:00"),
+			convectiveOutlook(location, "fri-storm", 1, "categorical", "SLGT", &rank2, "2026-05-29T12:00:00-05:00", "2026-05-29T13:00:00-05:00"),
+		},
+		Discussions: []weatherdata.ConvectiveOutlookDiscussion{
+			{Day: 4, Headline: "day4", UpdatedAt: ptrTime(mustParse("2026-05-31T10:00:00-05:00"))},
+			{Day: 1, Headline: "day1 late", UpdatedAt: ptrTime(mustParse("2026-05-29T09:00:00-05:00"))},
+			{Day: 3, Headline: "day3", UpdatedAt: ptrTime(mustParse("2026-05-31T08:00:00-05:00"))},
+			{Day: 1, Headline: "day1 early", UpdatedAt: ptrTime(mustParse("2026-05-29T08:00:00-05:00"))},
+			{Day: 2, Headline: "day2", UpdatedAt: ptrTime(mustParse("2026-05-30T08:00:00-05:00"))},
+		},
+	}
+}
+
+func convectiveOutlook(location *time.Location, id string, day int, outlookType string, label string, rank *int, validFrom string, validTo string) weatherdata.ConvectiveOutlook {
+	return weatherdata.ConvectiveOutlook{
+		ID:           id,
+		Day:          day,
+		OutlookType:  outlookType,
+		Label:        label,
+		SeverityRank: rank,
+		ValidFrom:    mustParse(validFrom).In(location),
+		ValidTo:      mustParse(validTo).In(location),
+	}
+}
+
+func outlookIDs(outlooks []weatherdata.ConvectiveOutlook) []string {
+	out := make([]string, 0, len(outlooks))
+	for _, outlook := range outlooks {
+		out = append(out, outlook.ID)
+	}
+	return out
+}
+
+func discussionHeadlines(discussions []weatherdata.ConvectiveOutlookDiscussion) []string {
+	out := make([]string, 0, len(discussions))
+	for _, discussion := range discussions {
+		out = append(out, discussion.Headline)
+	}
+	return out
+}
+
+func ptrTime(value time.Time) *time.Time {
+	return &value
+}
+
+func hour(location *time.Location, start string, end string, text string, precip float64, gust float64) weatherdata.ForecastPeriod {
+	temperature := 70.0
+	return weatherdata.ForecastPeriod{
+		StartTime:                         mustParse(start).In(location),
+		EndTime:                           mustParse(end).In(location),
+		TextDescription:                   text,
+		TemperatureF:                      &temperature,
+		ProbabilityOfPrecipitationPercent: &precip,
+		WindGustMph:                       &gust,
+	}
+}
+
+func testDayparts() []forecast.DaypartDefinition {
+	return []forecast.DaypartDefinition{
+		{Name: "morning", Start: "06:00", End: "12:00"},
+		{Name: "afternoon", Start: "12:00", End: "18:00"},
+		{Name: "evening", Start: "18:00", End: "24:00"},
+	}
+}
+
+func resolveForTest(t *testing.T, id report.ID, now time.Time, location *time.Location) report.Resolved {
+	t.Helper()
+	req := report.ResolveRequest{Now: now, Location: location}
+	if id == report.Daily {
+		req.Date = now
+	}
+	resolved, err := report.Resolve(id, req)
+	if err != nil {
+		t.Fatalf("resolve %s: %v", id, err)
+	}
+	return resolved
+}
+
+func resolveStormForTest(t *testing.T, location *time.Location) report.Resolved {
+	t.Helper()
+	resolved, err := report.Resolve(report.Storm, report.ResolveRequest{
+		Now:        mustParse("2026-05-29T08:00:00-05:00"),
+		Location:   location,
+		StormStart: mustParse("2026-05-29T11:30:00-05:00"),
+		StormEnd:   mustParse("2026-05-29T13:30:00-05:00"),
+	})
+	if err != nil {
+		t.Fatalf("resolve storm: %v", err)
+	}
+	return resolved
+}
+
+func testLocation() *time.Location {
+	location, err := time.LoadLocation("America/Chicago")
+	if err != nil {
+		panic(err)
+	}
+	return location
+}
+
+func mustParse(value string) time.Time {
+	parsed, err := time.Parse(time.RFC3339, value)
+	if err != nil {
+		panic(err)
+	}
+	return parsed
+}

internal/forecast/dayparts.go

@@ -5,6 +5,7 @@ import (
 	"time"
 
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
 )
 
 type DaypartDefinition struct {
@@ -48,6 +49,6 @@ func ResolveDayparts(date time.Time, location *time.Location, definitions []Dayp
 	return windows, nil
 }
 
-func PeriodForForecastPeriod(period ForecastPeriod) timeutil.Period {
+func PeriodForForecastPeriod(period weatherdata.ForecastPeriod) timeutil.Period {
 	return timeutil.Period{Start: period.StartTime, End: period.EndTime}
 }

internal/forecast/derive.go

@@ -8,23 +8,24 @@ import (
 	"time"
 
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
 )
 
 type DailySummary struct {
 	Date             string                       `json:"date"`
 	Period           timeutil.Period              `json:"period"`
 	Dayparts         []DaypartSummary             `json:"dayparts"`
-	NarrativePeriods []ForecastPeriod `json:"narrativePeriods,omitempty"`
+	NarrativePeriods []weatherdata.ForecastPeriod `json:"narrativePeriods,omitempty"`
 	AlertOverlaps    []AlertOverlap               `json:"alertOverlaps,omitempty"`
-	Discussion       *Discussion      `json:"discussion,omitempty"`
+	Discussion       *weatherdata.Discussion      `json:"discussion,omitempty"`
-	SourceWarnings   []SourceWarning  `json:"sourceWarnings,omitempty"`
+	SourceWarnings   []weatherdata.SourceWarning  `json:"sourceWarnings,omitempty"`
-	SourceProvenance []Source         `json:"sourceProvenance,omitempty"`
+	SourceProvenance []weatherdata.Source         `json:"sourceProvenance,omitempty"`
 }
 
 type DaypartSummary struct {
 	Name                        string                       `json:"name"`
 	Period                      timeutil.Period              `json:"period"`
-	HourlyPeriods               []ForecastPeriod `json:"hourlyPeriods"`
+	HourlyPeriods               []weatherdata.ForecastPeriod `json:"hourlyPeriods"`
 	Temperature                 Range                        `json:"temperature,omitempty"`
 	ApparentTemperature         Range                        `json:"apparentTemperature,omitempty"`
 	MaxPrecipitationProbability *TimedValue                  `json:"maxPrecipitationProbability,omitempty"`
@@ -46,6 +47,8 @@ type TimedValue struct {
 	Time  time.Time `json:"time"`
 }
 
+const DefaultPrecipWindowProbabilityThreshold = 40
+
 type Indicators struct {
 	Snow bool `json:"snow,omitempty"`
 	Ice  bool `json:"ice,omitempty"`
@@ -64,7 +67,106 @@ type AlertOverlap struct {
 	Description string          `json:"description,omitempty"`
 }
 
-func BuildDailySummary(bundle *Bundle, date time.Time, location *time.Location, dayparts []DaypartDefinition) (*DailySummary, error) {
+type PrecipTiming struct {
+	MaxPrecipitationProbability *TimedValue           `json:"maxPrecipitationProbability,omitempty"`
+	FirstPrecipitation          *TimedValue           `json:"firstPrecipitation,omitempty"`
+	LastPrecipitation           *TimedValue           `json:"lastPrecipitation,omitempty"`
+	ProbabilityThreshold        float64               `json:"probabilityThreshold"`
+	PrecipitationWindows        []PrecipitationWindow `json:"precipitationWindows,omitempty"`
+	ThunderMentioned            bool                  `json:"thunderMentioned,omitempty"`
+}
+
+type PrecipitationWindow struct {
+	Start                       time.Time  `json:"start"`
+	End                         *time.Time `json:"end,omitempty"`
+	MaxPrecipitationProbability TimedValue `json:"maxPrecipitationProbability"`
+	ProbabilityThreshold        float64    `json:"probabilityThreshold"`
+}
+
+func BuildPrecipTiming(periods []weatherdata.ForecastPeriod) PrecipTiming {
+	return buildPrecipTimingWithThreshold(periods, DefaultPrecipWindowProbabilityThreshold)
+}
+
+func buildPrecipTimingWithThreshold(periods []weatherdata.ForecastPeriod, threshold float64) PrecipTiming {
+	timing := PrecipTiming{ProbabilityThreshold: threshold}
+	sorted := append([]weatherdata.ForecastPeriod(nil), periods...)
+	sort.SliceStable(sorted, func(i int, j int) bool {
+		return sorted[i].StartTime.Before(sorted[j].StartTime)
+	})
+
+	var active *PrecipitationWindow
+	var activeLastEnd time.Time
+	closeActive := func() {
+		if active == nil {
+			return
+		}
+		end := activeLastEnd
+		active.End = &end
+		timing.PrecipitationWindows = append(timing.PrecipitationWindows, *active)
+		active = nil
+	}
+	startActive := func(forecastPeriod weatherdata.ForecastPeriod, probability float64) {
+		active = &PrecipitationWindow{
+			Start: forecastPeriod.StartTime,
+			MaxPrecipitationProbability: TimedValue{
+				Value: probability,
+				Time:  forecastPeriod.StartTime,
+			},
+			ProbabilityThreshold: threshold,
+		}
+		activeLastEnd = forecastPeriod.EndTime
+		if timing.FirstPrecipitation == nil {
+			timing.FirstPrecipitation = &TimedValue{
+				Value: probability,
+				Time:  forecastPeriod.StartTime,
+			}
+		}
+	}
+
+	for _, forecastPeriod := range sorted {
+		setMaxTimedValue(&timing.MaxPrecipitationProbability, forecastPeriod.ProbabilityOfPrecipitationPercent, forecastPeriod.StartTime)
+		if forecastPeriod.ProbabilityOfPrecipitationPercent == nil || *forecastPeriod.ProbabilityOfPrecipitationPercent < threshold {
+			closeActive()
+		} else {
+			probability := *forecastPeriod.ProbabilityOfPrecipitationPercent
+			if active == nil {
+				startActive(forecastPeriod, probability)
+			} else {
+				if forecastPeriod.StartTime.After(activeLastEnd) {
+					closeActive()
+					startActive(forecastPeriod, probability)
+				}
+				if probability > active.MaxPrecipitationProbability.Value {
+					active.MaxPrecipitationProbability = TimedValue{
+						Value: probability,
+						Time:  forecastPeriod.StartTime,
+					}
+				}
+				if forecastPeriod.EndTime.After(activeLastEnd) {
+					activeLastEnd = forecastPeriod.EndTime
+				}
+			}
+		}
+		if mentionsThunder(forecastPeriod.TextDescription) {
+			timing.ThunderMentioned = true
+		}
+	}
+	if active != nil {
+		timing.PrecipitationWindows = append(timing.PrecipitationWindows, *active)
+	}
+	if len(timing.PrecipitationWindows) > 0 {
+		final := timing.PrecipitationWindows[len(timing.PrecipitationWindows)-1]
+		if final.End != nil {
+			timing.LastPrecipitation = &TimedValue{
+				Value: final.MaxPrecipitationProbability.Value,
+				Time:  *final.End,
+			}
+		}
+	}
+	return timing
+}
+
+func BuildDailySummary(bundle *weatherdata.Bundle, date time.Time, location *time.Location, dayparts []DaypartDefinition) (*DailySummary, error) {
 	if bundle == nil {
 		return nil, fmt.Errorf("forecast bundle is required")
 	}
@@ -99,7 +201,7 @@ func BuildDailySummary(bundle *Bundle, date time.Time, location *time.Location,
 	return summary, nil
 }
 
-func BuildPeriodDailySummaries(bundle *Bundle, period timeutil.Period, location *time.Location, dayparts []DaypartDefinition) ([]DailySummary, error) {
+func BuildPeriodDailySummaries(bundle *weatherdata.Bundle, period timeutil.Period, location *time.Location, dayparts []DaypartDefinition) ([]DailySummary, error) {
 	if !period.IsValid() {
 		return nil, fmt.Errorf("valid forecast period is required")
 	}
@@ -121,7 +223,7 @@ func BuildPeriodDailySummaries(bundle *Bundle, period timeutil.Period, location
 	return summaries, nil
 }
 
-func buildDailySummaryForPeriod(bundle *Bundle, period timeutil.Period, location *time.Location, dayparts []DaypartDefinition) (*DailySummary, error) {
+func buildDailySummaryForPeriod(bundle *weatherdata.Bundle, period timeutil.Period, location *time.Location, dayparts []DaypartDefinition) (*DailySummary, error) {
 	if bundle == nil {
 		return nil, fmt.Errorf("forecast bundle is required")
 	}
@@ -155,11 +257,11 @@ func buildDailySummaryForPeriod(bundle *Bundle, period timeutil.Period, location
 	return summary, nil
 }
 
-func SelectHourlyPeriods(run *ForecastRun, period timeutil.Period) []ForecastPeriod {
+func SelectHourlyPeriods(run *weatherdata.ForecastRun, period timeutil.Period) []weatherdata.ForecastPeriod {
 	if run == nil {
 		return nil
 	}
-	var selected []ForecastPeriod
+	var selected []weatherdata.ForecastPeriod
 	for _, forecastPeriod := range run.Periods {
 		if PeriodForForecastPeriod(forecastPeriod).Overlaps(period) {
 			selected = append(selected, forecastPeriod)
@@ -171,21 +273,21 @@ func SelectHourlyPeriods(run *ForecastRun, period timeutil.Period) []ForecastPer
 	return selected
 }
 
-func SelectNarrativePeriods(bundle *Bundle, period timeutil.Period) []ForecastPeriod {
+func SelectNarrativePeriods(bundle *weatherdata.Bundle, period timeutil.Period) []weatherdata.ForecastPeriod {
 	if bundle == nil || bundle.Narrative == nil {
 		return nil
 	}
 	return SelectHourlyPeriods(bundle.Narrative, period)
 }
 
-func SelectDiscussion(bundle *Bundle) *Discussion {
+func SelectDiscussion(bundle *weatherdata.Bundle) *weatherdata.Discussion {
 	if bundle == nil {
 		return nil
 	}
 	return bundle.Discussion
 }
 
-func SummarizeDaypart(name string, period timeutil.Period, periods []ForecastPeriod) DaypartSummary {
+func SummarizeDaypart(name string, period timeutil.Period, periods []weatherdata.ForecastPeriod) DaypartSummary {
 	summary := DaypartSummary{
 		Name:          name,
 		Period:        period,
@@ -215,7 +317,7 @@ func SummarizeDaypart(name string, period timeutil.Period, periods []ForecastPer
 	return summary
 }
 
-func periodTemperatureValues(period ForecastPeriod) []*float64 {
+func periodTemperatureValues(period weatherdata.ForecastPeriod) []*float64 {
 	values := []*float64{}
 	values = append(values, valueFromPointers(period.TemperatureF, period.TemperatureC)...)
 	values = append(values, valueFromPointers(period.TemperatureFMin, period.TemperatureCMin)...)
@@ -297,7 +399,11 @@ func indicatorsForText(text string) Indicators {
 	}
 }
 
-func numericIndicators(period ForecastPeriod) Indicators {
+func mentionsThunder(text string) bool {
+	return strings.Contains(strings.ToLower(text), "thunder")
+}
+
+func numericIndicators(period weatherdata.ForecastPeriod) Indicators {
 	windGust := firstValue(period.WindGustMph, period.WindGustKmh)
 	windSpeed := firstValue(period.WindSpeedMph, period.WindSpeedKmh)
 	indicators := Indicators{}
@@ -325,7 +431,7 @@ func mergeIndicators(left Indicators, right Indicators) Indicators {
 	}
 }
 
-func AlertOverlaps(alertRun *AlertRun, period timeutil.Period) []AlertOverlap {
+func AlertOverlaps(alertRun *weatherdata.AlertRun, period timeutil.Period) []AlertOverlap {
 	if alertRun == nil {
 		return nil
 	}

internal/forecast/derive_test.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"gitea.maximumdirect.net/eric/weatherreporter/internal/timeutil"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/weatherdata"
 )
 
 func TestBuildDailySummaryGroupsDaypartsAndComputesMetrics(t *testing.T) {
@@ -72,7 +73,7 @@ func TestBuildDailySummaryFromFixtureBundle(t *testing.T) {
 	if err != nil {
 		t.Fatalf("read fixture bundle: %v", err)
 	}
-	var bundle Bundle
+	var bundle weatherdata.Bundle
 	if err := json.Unmarshal(data, &bundle); err != nil {
 		t.Fatalf("decode fixture bundle: %v", err)
 	}
@@ -98,7 +99,7 @@ func TestBuildDailySummaryFromFixtureBundle(t *testing.T) {
 func TestOvernightGroupingAcrossMidnight(t *testing.T) {
 	location := time.FixedZone("Test", -5*60*60)
 	date := time.Date(2026, 5, 29, 12, 0, 0, 0, location)
-	bundle := &Bundle{Hourly: &ForecastRun{Periods: []ForecastPeriod{
+	bundle := &weatherdata.Bundle{Hourly: &weatherdata.ForecastRun{Periods: []weatherdata.ForecastPeriod{
 		hour(location, "2026-05-29T23:00:00-05:00", "2026-05-30T00:00:00-05:00", "Snow", 31, nil, nil, nil, nil),
 		hour(location, "2026-05-30T05:00:00-05:00", "2026-05-30T06:00:00-05:00", "Fog", 30, nil, nil, nil, nil),
 		hour(location, "2026-05-30T06:00:00-05:00", "2026-05-30T07:00:00-05:00", "Clear", 35, nil, nil, nil, nil),
@@ -122,7 +123,7 @@ func TestOvernightGroupingAcrossMidnight(t *testing.T) {
 func TestBoundaryTimestampsAtDaypartEdges(t *testing.T) {
 	location := time.FixedZone("Test", -5*60*60)
 	date := time.Date(2026, 5, 29, 12, 0, 0, 0, location)
-	bundle := &Bundle{Hourly: &ForecastRun{Periods: []ForecastPeriod{
+	bundle := &weatherdata.Bundle{Hourly: &weatherdata.ForecastRun{Periods: []weatherdata.ForecastPeriod{
 		hour(location, "2026-05-29T05:00:00-05:00", "2026-05-29T06:00:00-05:00", "Before", 55, nil, nil, nil, nil),
 		hour(location, "2026-05-29T06:00:00-05:00", "2026-05-29T07:00:00-05:00", "Start", 56, nil, nil, nil, nil),
 		hour(location, "2026-05-29T12:00:00-05:00", "2026-05-29T13:00:00-05:00", "After", 70, nil, nil, nil, nil),
@@ -145,7 +146,7 @@ func TestBoundaryTimestampsAtDaypartEdges(t *testing.T) {
 
 func TestBuildDailySummaryRequiresHourlyData(t *testing.T) {
 	location := time.UTC
-	_, err := BuildDailySummary(&Bundle{}, time.Now(), location, []DaypartDefinition{
+	_, err := BuildDailySummary(&weatherdata.Bundle{}, time.Now(), location, []DaypartDefinition{
 		{Name: "morning", Start: "06:00", End: "12:00"},
 	})
 	if err == nil {
@@ -155,7 +156,7 @@ func TestBuildDailySummaryRequiresHourlyData(t *testing.T) {
 
 func TestBuildPeriodDailySummariesClipsPartialDays(t *testing.T) {
 	location := time.FixedZone("Test", -5*60*60)
-	bundle := &Bundle{Hourly: &ForecastRun{Periods: []ForecastPeriod{
+	bundle := &weatherdata.Bundle{Hourly: &weatherdata.ForecastRun{Periods: []weatherdata.ForecastPeriod{
 		hour(location, "2026-05-29T05:00:00-05:00", "2026-05-29T06:00:00-05:00", "Before", 50, nil, nil, nil, nil),
 		hour(location, "2026-05-29T08:00:00-05:00", "2026-05-29T09:00:00-05:00", "Showers", 60, nil, ptr(60), nil, nil),
 		hour(location, "2026-05-30T14:00:00-05:00", "2026-05-30T15:00:00-05:00", "Hot", 95, nil, nil, nil, nil),
@@ -191,7 +192,7 @@ func TestBuildPeriodDailySummariesClipsPartialDays(t *testing.T) {
 func TestAlertOverlap(t *testing.T) {
 	location := time.FixedZone("Test", -5*60*60)
 	raw := json.RawMessage(`{"event":"Flood Watch","headline":"Flooding possible","severity":"Moderate","effective":"2026-05-29T07:00:00-05:00","expires":"2026-05-29T10:00:00-05:00"}`)
-	alertRun := &AlertRun{Alerts: []json.RawMessage{raw}}
+	alertRun := &weatherdata.AlertRun{Alerts: []json.RawMessage{raw}}
 	period := timeutil.Period{
 		Start: mustParse("2026-05-29T06:00:00-05:00").In(location),
 		End:   mustParse("2026-05-29T09:00:00-05:00").In(location),
@@ -209,6 +210,113 @@ func TestAlertOverlap(t *testing.T) {
 	}
 }
 
+func TestBuildPrecipTimingBuildsThresholdWindows(t *testing.T) {
+	location := time.FixedZone("Test", -5*60*60)
+	periods := []weatherdata.ForecastPeriod{
+		hour(location, "2026-05-29T08:00:00-05:00", "2026-05-29T09:00:00-05:00", "Cloudy", 70, nil, ptr(0), nil, nil),
+		hour(location, "2026-05-29T12:00:00-05:00", "2026-05-29T13:00:00-05:00", "Thunderstorms", 70, nil, ptr(80), nil, nil),
+		hour(location, "2026-05-29T11:00:00-05:00", "2026-05-29T12:00:00-05:00", "Brief lull", 70, nil, ptr(39.999), nil, nil),
+		hour(location, "2026-05-29T13:00:00-05:00", "2026-05-29T14:00:00-05:00", "Unknown rain chance", 70, nil, nil, nil, nil),
+		hour(location, "2026-05-29T10:00:00-05:00", "2026-05-29T11:00:00-05:00", "Rain likely", 70, nil, ptr(60), nil, nil),
+		hour(location, "2026-05-29T09:00:00-05:00", "2026-05-29T10:00:00-05:00", "Showers", 70, nil, ptr(40), nil, nil),
+	}
+
+	timing := BuildPrecipTiming(periods)
+
+	if timing.FirstPrecipitation == nil || timing.FirstPrecipitation.Time.Format(time.RFC3339) != "2026-05-29T09:00:00-05:00" {
+		t.Fatalf("FirstPrecipitation = %#v, want first threshold window start", timing.FirstPrecipitation)
+	}
+	if timing.LastPrecipitation == nil || timing.LastPrecipitation.Time.Format(time.RFC3339) != "2026-05-29T13:00:00-05:00" {
+		t.Fatalf("LastPrecipitation = %#v, want final closed threshold window end", timing.LastPrecipitation)
+	}
+	if timing.MaxPrecipitationProbability == nil || timing.MaxPrecipitationProbability.Value != 80 {
+		t.Fatalf("MaxPrecipitationProbability = %#v, want 80", timing.MaxPrecipitationProbability)
+	}
+	if timing.ProbabilityThreshold != DefaultPrecipWindowProbabilityThreshold {
+		t.Fatalf("ProbabilityThreshold = %v, want default threshold", timing.ProbabilityThreshold)
+	}
+	if len(timing.PrecipitationWindows) != 2 {
+		t.Fatalf("PrecipitationWindows length = %d, want 2: %#v", len(timing.PrecipitationWindows), timing.PrecipitationWindows)
+	}
+	first := timing.PrecipitationWindows[0]
+	if first.Start.Format(time.RFC3339) != "2026-05-29T09:00:00-05:00" || first.End == nil || first.End.Format(time.RFC3339) != "2026-05-29T11:00:00-05:00" {
+		t.Fatalf("first window = %#v, want 9-11 AM", first)
+	}
+	if first.MaxPrecipitationProbability.Value != 60 || first.MaxPrecipitationProbability.Time.Format(time.RFC3339) != "2026-05-29T10:00:00-05:00" {
+		t.Fatalf("first window max = %#v, want 60 at 10 AM", first.MaxPrecipitationProbability)
+	}
+	second := timing.PrecipitationWindows[1]
+	if second.Start.Format(time.RFC3339) != "2026-05-29T12:00:00-05:00" || second.End == nil || second.End.Format(time.RFC3339) != "2026-05-29T13:00:00-05:00" {
+		t.Fatalf("second window = %#v, want noon-1 PM", second)
+	}
+	if !timing.ThunderMentioned {
+		t.Fatal("ThunderMentioned = false, want true")
+	}
+}
+
+func TestBuildPrecipTimingLeavesFinalWindowOpen(t *testing.T) {
+	location := time.FixedZone("Test", -5*60*60)
+	periods := []weatherdata.ForecastPeriod{
+		hour(location, "2026-05-29T08:00:00-05:00", "2026-05-29T09:00:00-05:00", "Cloudy", 70, nil, ptr(0), nil, nil),
+		hour(location, "2026-05-29T09:00:00-05:00", "2026-05-29T10:00:00-05:00", "Showers", 70, nil, ptr(45), nil, nil),
+		hour(location, "2026-05-29T10:00:00-05:00", "2026-05-29T11:00:00-05:00", "Rain likely", 70, nil, ptr(60), nil, nil),
+	}
+
+	timing := BuildPrecipTiming(periods)
+
+	if len(timing.PrecipitationWindows) != 1 {
+		t.Fatalf("PrecipitationWindows length = %d, want 1", len(timing.PrecipitationWindows))
+	}
+	if timing.PrecipitationWindows[0].End != nil {
+		t.Fatalf("open window End = %v, want nil", timing.PrecipitationWindows[0].End)
+	}
+	if timing.LastPrecipitation != nil {
+		t.Fatalf("LastPrecipitation = %#v, want nil for open final window", timing.LastPrecipitation)
+	}
+}
+
+func TestBuildPrecipTimingSupportsNonDefaultThreshold(t *testing.T) {
+	location := time.FixedZone("Test", -5*60*60)
+	periods := []weatherdata.ForecastPeriod{
+		hour(location, "2026-05-29T08:00:00-05:00", "2026-05-29T09:00:00-05:00", "Showers", 70, nil, ptr(50), nil, nil),
+		hour(location, "2026-05-29T09:00:00-05:00", "2026-05-29T10:00:00-05:00", "Rain likely", 70, nil, ptr(60), nil, nil),
+		hour(location, "2026-05-29T10:00:00-05:00", "2026-05-29T11:00:00-05:00", "Showers", 70, nil, ptr(55), nil, nil),
+		hour(location, "2026-05-29T11:00:00-05:00", "2026-05-29T12:00:00-05:00", "Drying out", 70, nil, ptr(20), nil, nil),
+	}
+
+	timing := buildPrecipTimingWithThreshold(periods, 55)
+
+	if timing.ProbabilityThreshold != 55 {
+		t.Fatalf("ProbabilityThreshold = %v, want 55", timing.ProbabilityThreshold)
+	}
+	if len(timing.PrecipitationWindows) != 1 {
+		t.Fatalf("PrecipitationWindows length = %d, want 1", len(timing.PrecipitationWindows))
+	}
+	window := timing.PrecipitationWindows[0]
+	if window.Start.Format(time.RFC3339) != "2026-05-29T09:00:00-05:00" || window.End == nil || window.End.Format(time.RFC3339) != "2026-05-29T11:00:00-05:00" {
+		t.Fatalf("window = %#v, want 9-11 AM", window)
+	}
+}
+
+func TestBuildPrecipTimingHandlesDryForecast(t *testing.T) {
+	location := time.FixedZone("Test", -5*60*60)
+	periods := []weatherdata.ForecastPeriod{
+		hour(location, "2026-05-29T08:00:00-05:00", "2026-05-29T09:00:00-05:00", "Sunny", 70, nil, ptr(0), nil, nil),
+	}
+
+	timing := BuildPrecipTiming(periods)
+
+	if timing.FirstPrecipitation != nil || timing.LastPrecipitation != nil || len(timing.PrecipitationWindows) != 0 || timing.ThunderMentioned {
+		t.Fatalf("dry timing = %#v, want no precip timing and no thunder", timing)
+	}
+	if timing.ProbabilityThreshold != DefaultPrecipWindowProbabilityThreshold {
+		t.Fatalf("ProbabilityThreshold = %v, want default threshold", timing.ProbabilityThreshold)
+	}
+	if timing.MaxPrecipitationProbability == nil || timing.MaxPrecipitationProbability.Value != 0 {
+		t.Fatalf("dry max precip = %#v, want checked zero chance", timing.MaxPrecipitationProbability)
+	}
+}
+
 func TestThresholdHelpers(t *testing.T) {
 	if !DifferenceAtLeast(50, 56, 5) {
 		t.Fatal("DifferenceAtLeast = false, want true")
@@ -221,31 +329,31 @@ func TestThresholdHelpers(t *testing.T) {
 	}
 }
 
-func testBundle(location *time.Location) *Bundle {
+func testBundle(location *time.Location) *weatherdata.Bundle {
-	return &Bundle{
+	return &weatherdata.Bundle{
-		Hourly: &ForecastRun{Periods: []ForecastPeriod{
+		Hourly: &weatherdata.ForecastRun{Periods: []weatherdata.ForecastPeriod{
 			hour(location, "2026-05-29T05:00:00-05:00", "2026-05-29T06:00:00-05:00", "Cloudy", 55, nil, nil, nil, nil),
 			hour(location, "2026-05-29T06:00:00-05:00", "2026-05-29T07:00:00-05:00", "Thunderstorms and gusty wind", 58, ptr(57), ptr(70), ptr(22), ptr(40)),
 			hour(location, "2026-05-29T11:00:00-05:00", "2026-05-29T12:00:00-05:00", "Thunderstorms and gusty wind", 72, ptr(74), ptr(60), ptr(18), ptr(35)),
 			hour(location, "2026-05-29T14:00:00-05:00", "2026-05-29T15:00:00-05:00", "Hot and sunny", 96, ptr(100), ptr(5), ptr(10), ptr(12)),
 		}},
-		Narrative: &ForecastRun{Periods: []ForecastPeriod{
+		Narrative: &weatherdata.ForecastRun{Periods: []weatherdata.ForecastPeriod{
 			hour(location, "2026-05-29T06:00:00-05:00", "2026-05-29T18:00:00-05:00", "Storms early, hot later.", 96, nil, nil, nil, nil),
 		}},
-		Alerts: &AlertRun{Alerts: []json.RawMessage{
+		Alerts: &weatherdata.AlertRun{Alerts: []json.RawMessage{
 			json.RawMessage(`{"event":"Severe Thunderstorm Watch","headline":"Storms possible","severity":"Severe","effective":"2026-05-29T06:30:00-05:00","expires":"2026-05-29T11:30:00-05:00"}`),
 		}},
-		Discussion: &Discussion{Product: "discussion", KeyMessages: []string{"Storms possible."}},
+		Discussion: &weatherdata.Discussion{Product: "discussion", KeyMessages: []string{"Storms possible."}},
-		Sources:    []Source{{Name: "hourly"}},
+		Sources:    []weatherdata.Source{{Name: "hourly"}},
-		Warnings:   []SourceWarning{{Source: "daily", Code: "missing_source"}},
+		Warnings:   []weatherdata.SourceWarning{{Source: "daily", Code: "missing_source"}},
 	}
 }
 
-func hour(location *time.Location, start string, end string, text string, temperature float64, apparent *float64, precip *float64, wind *float64, gust *float64) ForecastPeriod {
+func hour(location *time.Location, start string, end string, text string, temperature float64, apparent *float64, precip *float64, wind *float64, gust *float64) weatherdata.ForecastPeriod {
 	startTime := mustParse(start).In(location)
 	endTime := mustParse(end).In(location)
 	temp := temperature
-	return ForecastPeriod{
+	return weatherdata.ForecastPeriod{
 		StartTime:                         startTime,
 		EndTime:                           endTime,
 		TextDescription:                   text,

internal/generatedtext/catalog.go

@@ -0,0 +1,195 @@
+package generatedtext
+
+import (
+	"fmt"
+
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/briefing"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/facts"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/module"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/report"
+	"gitea.maximumdirect.net/eric/weatherreporter/internal/reporttemplate"
+)
+
+const (
+	schemaIDHourly   = "hourly"
+	schemaIDDaily    = "daily"
+	schemaIDToday    = "today"
+	schemaIDTomorrow = "tomorrow"
+
+	templateIDHourly   = "hourly"
+	templateIDDaily    = "daily"
+	templateIDToday    = "today"
+	templateIDTomorrow = "tomorrow"
+)
+
+type validator func([]byte) (any, []byte, error)
+
+type renderContextBuilder func(report.ID, string, briefing.Metadata, module.Snapshot, facts.CollectedFacts, facts.DerivedFacts, any) (any, error)
+
+type catalogEntry struct {
+	schemaID             string
+	templateID           string
+	validate             validator
+	renderContextBuilder renderContextBuilder
+}
+
+type Handler struct {
+	reportID             report.ID
+	schemaID             string
+	templateID           string
+	validate             validator
+	renderContextBuilder renderContextBuilder
+}
+
+var catalog = []catalogEntry{
+	{
+		schemaID:             schemaIDHourly,
+		templateID:           templateIDHourly,
+		validate:             validateHourly,
+		renderContextBuilder: buildHourlyContext,
+	},
+	{
+		schemaID:             schemaIDDaily,
+		templateID:           templateIDDaily,
+		validate:             validateDaily,
+		renderContextBuilder: buildDailyContext,
+	},
+	{
+		schemaID:             schemaIDToday,
+		templateID:           templateIDToday,
+		validate:             validateToday,
+		renderContextBuilder: buildTodayContext,
+	},
+	{
+		schemaID:             schemaIDTomorrow,
+		templateID:           templateIDTomorrow,
+		validate:             validateTomorrow,
+		renderContextBuilder: buildTomorrowContext,
+	},
+}
+
+func LookupDefinition(definition report.Definition) (Handler, error) {
+	if definition.GenerationMode != report.GenerationModeGeneratedTextTemplate {
+		return Handler{}, fmt.Errorf("report %q uses generation mode %q, not %q", definition.ID, definition.GenerationMode, report.GenerationModeGeneratedTextTemplate)
+	}
+
+	var schemaKnown, templateKnown bool
+	for _, entry := range catalog {
+		if entry.schemaID == definition.GeneratedTextSchemaID {
+			schemaKnown = true
+		}
+		if entry.templateID == definition.TemplateID {
+			templateKnown = true
+		}
+		if entry.schemaID == definition.GeneratedTextSchemaID && entry.templateID == definition.TemplateID {
+			return Handler{
+				reportID:             definition.ID,
+				schemaID:             entry.schemaID,
+				templateID:           entry.templateID,
+				validate:             entry.validate,
+				renderContextBuilder: entry.renderContextBuilder,
+			}, nil
+		}
+	}
+	if !schemaKnown {
+		return Handler{}, fmt.Errorf("generated text schema %q is not supported for report %q", definition.GeneratedTextSchemaID, definition.ID)
+	}
+	if !templateKnown {
+		return Handler{}, fmt.Errorf("report template %q is not supported for report %q", definition.TemplateID, definition.ID)
+	}
+	return Handler{}, fmt.Errorf("generated text schema %q and report template %q are not supported together for report %q", definition.GeneratedTextSchemaID, definition.TemplateID, definition.ID)
+}
+
+func (h Handler) SchemaID() string {
+	return h.schemaID
+}
+
+func (h Handler) TemplateID() string {
+	return h.templateID
+}
+
+func (h Handler) Schema() ([]byte, error) {
+	data, err := reporttemplate.Schema(h.schemaID)
+	if err != nil {
+		return nil, fmt.Errorf("load generated text schema %q for report %q: %w", h.schemaID, h.reportID, err)
+	}
+	return data, nil
+}
+
+func (h Handler) Template() (string, error) {
+	source, err := reporttemplate.Template(h.templateID)
+	if err != nil {
+		return "", fmt.Errorf("load report template %q for report %q: %w", h.templateID, h.reportID, err)
+	}
+	return source, nil
+}
+
+func (h Handler) Validate(data []byte) (any, []byte, error) {
+	if h.validate == nil {
+		return nil, nil, fmt.Errorf("generated text validator is not registered for schema %q on report %q", h.schemaID, h.reportID)
+	}
+	return h.validate(data)
+}
+
+func (h Handler) BuildRenderContext(metadata briefing.Metadata, snapshot module.Snapshot, collected facts.CollectedFacts, derived facts.DerivedFacts, generated any) (any, error) {
+	if h.renderContextBuilder == nil {
+		return nil, fmt.Errorf("render-context builder is not registered for template %q on report %q", h.templateID, h.reportID)
+	}
+	return h.renderContextBuilder(h.reportID, h.templateID, metadata, snapshot, collected, derived, generated)
+}
+
+func (h Handler) Render(data any) ([]byte, error) {
+	rendered, err := reporttemplate.Render(h.templateID, data)
+	if err != nil {
+		return nil, fmt.Errorf("render report template %q for report %q: %w", h.templateID, h.reportID, err)
+	}
+	return rendered, nil
+}
+
+func validateHourly(data []byte) (any, []byte, error) {
+	return ValidateHourly(data)
+}
+
+func validateDaily(data []byte) (any, []byte, error) {
+	return ValidateDaily(data)
+}
+
+func validateToday(data []byte) (any, []byte, error) {
+	return ValidateToday(data)
+}
+
+func validateTomorrow(data []byte) (any, []byte, error) {
+	return ValidateTomorrow(data)
+}
+
+func buildHourlyContext(reportID report.ID, templateID string, metadata briefing.Metadata, snapshot module.Snapshot, collected facts.CollectedFacts, derived facts.DerivedFacts, generated any) (any, error) {
+	hourly, ok := generated.(Hourly)
+	if !ok {
+		return nil, fmt.Errorf("report template %q requires hourly generated text for report %q", templateID, reportID)
+	}
+	return BuildHourlyRenderContext(metadata, snapshot, hourly, collected, derived)
+}
+
+func buildDailyContext(reportID report.ID, templateID string, metadata briefing.Metadata, snapshot module.Snapshot, collected facts.CollectedFacts, derived facts.DerivedFacts, generated any) (any, error) {
+	daily, ok := generated.(Daily)
+	if !ok {
+		return nil, fmt.Errorf("report template %q requires daily generated text for report %q", templateID, reportID)
+	}
+	return BuildDailyRenderContext(metadata, snapshot, daily, collected, derived)
+}
+
+func buildTodayContext(reportID report.ID, templateID string, metadata briefing.Metadata, snapshot module.Snapshot, collected facts.CollectedFacts, derived facts.DerivedFacts, generated any) (any, error) {
+	today, ok := generated.(Today)
+	if !ok {
+		return nil, fmt.Errorf("report template %q requires today generated text for report %q", templateID, reportID)
+	}
+	return BuildTodayRenderContext(metadata, snapshot, today, collected, derived)
+}
+
+func buildTomorrowContext(reportID report.ID, templateID string, metadata briefing.Metadata, snapshot module.Snapshot, collected facts.CollectedFacts, derived facts.DerivedFacts, generated any) (any, error) {
+	tomorrow, ok := generated.(Tomorrow)
+	if !ok {
+		return nil, fmt.Errorf("report template %q requires tomorrow generated text for report %q", templateID, reportID)
+	}
+	return BuildTomorrowRenderContext(metadata, snapshot, tomorrow, collected, derived)
+}