Compare recent changes from module snapshots

docs/config.md

@@ -171,7 +171,7 @@ 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`

docs/internal/app-orchestration.md

@@ -70,19 +70,20 @@ Single-report generation follows this order:
 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.
-6. Save the briefing snapshot.
-7. Compute Recent Changes from structured prior and current briefings.
-8. Build and save the 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.
-14. Save metadata with the managed report path.
-15. If distributor notification is enabled, notify using the managed report
+5. Build collected and derived facts once.
+6. Execute configured modules and save the module snapshot.
+7. Build and save the compatibility briefing snapshot.
+8. Compute Recent Changes from structured prior and current module snapshots.
+9. Build and save the YAML Scriptorium `data_package`.
+10. Run Scriptorium render preflight.
+11. Save preflight JSON when a render result is available.
+12. Save metadata for inspection.
+13. Run Scriptorium report generation to the managed report path.
+14. Copy the managed report to the requested `--out` path when provided.
+15. Save metadata with the managed report path.
+16. If distributor notification is enabled, notify using the managed report
     path as the source file.
-16. Save a distributor notification debug artifact and update metadata with its
+17. Save a distributor notification debug artifact and update metadata with its
     path.
 
 If render preflight returns both a result and an error, preflight JSON and
@@ -141,7 +142,7 @@ 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.
+- 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/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
-- current briefing package
+- prior module snapshot
+- 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
@@ -51,9 +51,11 @@ empty Recent Changes list without calling a comparison function.
 
 ## Failure Behavior
 
-- Daily comparison requires both inputs to contain Daily briefing content.
-- 3-Day comparison requires both inputs to contain 3-Day briefing content.
-- Weekend comparison requires both inputs to contain Weekend briefing content.
+- Daily comparison requires `derived_daily_summary` and
+  `derived_daypart_summaries` stanzas. It also uses `alert_digest` and
+  `precip_timing` when present.
+- 3-Day comparison requires `derived_daypart_summaries`.
+- Weekend comparison requires `derived_daypart_summaries`.
 - Storm Report currently has no comparison implementation, so the app leaves
   Recent Changes empty for Storm reports.
 

docs/internal/prompt-input.md

@@ -4,26 +4,24 @@ This document describes prompt input data package construction.
 
 ## Purpose
 
-`internal/promptinput` converts a structured briefing package and optional
-Recent Changes into the `data_package` JSON passed to Scriptorium prompts.
+`internal/promptinput` converts report metadata, module snapshots, and optional
+Recent Changes into the YAML `data_package` passed to Scriptorium prompts.
 
 ## Inputs And Outputs
 
 Inputs:
 
-- `briefing.Package`
+- report metadata
+- `module.Snapshot`
 - optional `[]changes.Change`
 
 Outputs:
 
 - `promptinput.Package` containing schema version, RunID, report metadata,
-  briefing content, Recent Changes, and source warnings. Briefing content
-  includes configured location context, current conditions when available,
-  structured weather story context when available, discussion key messages, and
-  short/long-term AFD narratives when the Weather API provides them.
+  named briefing stanzas, Recent Changes, and source warnings.
 - report metadata includes `currentLocalDate`, the generation date formatted as
   `YYYY-MM-DD` in the effective report timezone.
-- optional JSON file written by `promptinput.Save`
+- optional YAML file written by `promptinput.Save`
 
 ## Boundaries
 
@@ -34,7 +32,8 @@ Outputs:
 ## Config Fields Used
 
 None directly. Config-derived values, including timezone and prompt location
-context, are already present in briefing metadata before this package runs.
+context, are already present in report metadata and module stanzas before this
+package runs.
 
 ## External Adapters Used
 
@@ -42,7 +41,7 @@ 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 +50,9 @@ 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
-metadata fields are missing or inconsistent, or when no report content is
-present. Save failures include filesystem operation and path context.
+Validation fails before render preflight when required top-level fields are
+missing or inconsistent, or when no named briefing stanzas are present. Save
+failures include filesystem operation and path context.
 
 ## Tests
 
@@ -64,6 +63,6 @@ Inspect:
 
 ## Invariants
 
-- Scriptorium receives structured `data_package` JSON.
-- Briefing metadata and top-level report metadata must agree.
+- Scriptorium receives structured `data_package` YAML.
+- Module stanza order is deterministic for generated snapshots.
 - Recent Changes are not inferred from rendered report text.

docs/operations.md

@@ -216,8 +216,8 @@ source provenance and warnings without dumping full weather payloads.
 
 ## Recent Changes
 
-Recent Changes are computed from structured briefing snapshots, not rendered
-Markdown text.
+Recent Changes are computed from structured module snapshots, not rendered
+Markdown or YAML text.
 
 Daily Today and Daily Tomorrow can compare with each other when they cover the
 same valid local date. 3-Day Outlook compares with prior compatible 3-Day

docs/policy/architecture.md

@@ -3,7 +3,7 @@
 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.