Document development workflow and internals

README.md

@@ -32,4 +32,5 @@ current working directory.
 - [Event wire contract](docs/integrations/events.md)
 - [Postgres table contract](docs/integrations/postgres.md)
 - [Architecture policy](docs/policy/architecture.md)
+- [Development policy](docs/policy/development.md)
 - [Documentation policy](docs/policy/documentation.md)

docs/internal/normalizers.md

@@ -0,0 +1,90 @@
+# Normalizer Internals
+
+## Purpose
+
+Normalizers convert raw provider events into canonical weather events. They are
+weather-domain mapping code and should stay independent of runtime wiring,
+source polling, and sink persistence.
+
+Detailed package conventions live in `internal/normalizers/doc.go`.
+
+## Inputs And Outputs
+
+Inputs are raw feed events whose schemas identify provider payload shape.
+Outputs are canonical feed events using `model` payloads and `weather.*`
+schemas.
+
+Current mappings:
+
+| Raw schema | Canonical schema |
+| --- | --- |
+| `raw.nws.observation.v1` | `weather.observation.v1` |
+| `raw.openmeteo.current.v1` | `weather.observation.v1` |
+| `raw.openweather.current.v1` | `weather.observation.v1` |
+| `raw.nws.hourly.forecast.v1` | `weather.forecast.v1` |
+| `raw.nws.narrative.forecast.v1` | `weather.forecast.v1` |
+| `raw.openmeteo.hourly.forecast.v1` | `weather.forecast.v1` |
+| `raw.nws.forecast_discussion.v1` | `weather.forecast_discussion.v1` |
+| `raw.nws.weatherstories.v1` | `weather.weather_story.v1` |
+| `raw.nws.alerts.v1` | `weather.alert.v1` |
+
+## Boundaries
+
+- Normalizers match by `Event.Schema`.
+- Normalizers decode raw payloads into provider structs.
+- Normalizers map provider data into canonical `model` payloads.
+- Normalizers do not fetch network data, read config, route events, or write
+  sinks.
+- Shared cross-provider behavior belongs in `internal/normalizers/common`.
+- Provider-specific helper logic shared with sources belongs in
+  `internal/providers/<provider>`.
+
+## Config Fields Used
+
+Normalizers do not read config. They operate only on incoming events.
+
+## External Adapters Used
+
+Runtime composition creates feedkit's normalize processor with
+`RequireMatch=false`. Events without a matching normalizer pass through
+unchanged.
+
+Weatherfeeder registers normalizers in a stable order:
+
+1. NWS
+2. Open-Meteo
+3. OpenWeather
+
+The current normalizers avoid ambiguous matches by using schema equality.
+
+## State
+
+Normalizers should be stateless. Shared helpers should be deterministic and free
+of I/O.
+
+## Failure Behavior
+
+Malformed required raw payload data should produce contextual errors from the
+owning normalizer. Successful normalization validates the output event before it
+continues through the pipeline.
+
+`internal/normalizers/common.Finalize` preserves the input event envelope except
+for schema, payload, and effective time. It also rounds canonical float values
+to four digits after the decimal point.
+
+## Tests To Inspect
+
+- `internal/normalizers/builtins_test.go`
+- provider normalizer tests under `internal/normalizers/nws`
+- provider normalizer tests under `internal/normalizers/openmeteo`
+- provider normalizer tests under `internal/normalizers/openweather`
+- common helper tests under `internal/normalizers/common`
+
+## Invariants
+
+- Match by schema constants from `standards`.
+- Preserve the event envelope except for intentional canonical changes.
+- Produce canonical payload structs from `model`.
+- Validate normalized events before returning them.
+- Keep normalizers independent of sources, sinks, config loading, and runtime
+  composition.

docs/internal/postgres-sink.md

@@ -0,0 +1,118 @@
+# Postgres Sink Internals
+
+## Purpose
+
+`internal/sinks/postgres` defines weatherfeeder's canonical-event-to-Postgres
+mapping. It supplies a schema definition and mapper to feedkit's generic
+Postgres sink.
+
+The consumer-facing table contract is
+[`docs/integrations/postgres.md`](../integrations/postgres.md). This document
+describes the internal ownership boundary.
+
+## Inputs And Outputs
+
+Inputs are canonical feed events. The mapper currently handles these schemas:
+
+- `weather.observation.v1`
+- `weather.forecast.v1`
+- `weather.forecast_discussion.v1`
+- `weather.weather_story.v1`
+- `weather.alert.v1`
+
+Outputs are feedkit `PostgresWrite` values for weatherfeeder-owned tables.
+Unsupported schemas produce no writes and no error.
+
+## Boundaries
+
+- Weatherfeeder owns table definitions in `schema.go`.
+- Weatherfeeder owns canonical payload mapping in `map.go`.
+- Feedkit owns database opening, table and index creation, transactions,
+  inserts, context-aware consumption, and prune execution.
+- Postgres mapping consumes canonical events only. It should not understand raw
+  provider schemas.
+
+## Config Fields Used
+
+Weatherfeeder registers the `postgres` sink by passing `PostgresSchema()` to
+feedkit. Feedkit parses sink params:
+
+- `uri`
+- `username`
+- `password`
+- `prune`, optional duration
+
+Weatherfeeder-owned mapper code does not read config directly.
+
+## External Adapters Used
+
+The runtime registers the sink with:
+
+```go
+sinkReg.Register("postgres", fksinks.PostgresFactory(wfpgsink.PostgresSchema()))
+```
+
+Feedkit validates events at the sink boundary, calls the weatherfeeder mapper,
+validates writes against the compiled schema, inserts rows in a transaction, and
+optionally prunes rows older than the configured window.
+
+## State
+
+The mapper is stateless. Durable state is stored in Postgres through feedkit's
+sink implementation.
+
+## Mapping Rules
+
+Parent rows preserve event envelope fields where the table supports them:
+
+- `event_id`
+- `event_kind`
+- `event_source`
+- `event_schema`
+- `event_emitted_at`
+- `event_effective_at`
+
+Child rows use positional indexes to preserve canonical array order:
+
+- `weather_index`
+- `period_index`
+- `message_index`
+- `story_index`
+- `alert_index`
+- `reference_index`
+
+Required canonical fields are validated before writes are returned:
+
+- observations require `timestamp`;
+- forecasts require `issuedAt` and `product`, and each period requires
+  `startTime` and `endTime`;
+- forecast discussions require `issuedAt` and `product`;
+- weather story runs require `asOf`, and each story requires `startTime`,
+  `endTime`, and `updatedAt`;
+- alert runs require `asOf`, and each alert requires `id`.
+
+Nullable canonical values are converted to SQL nulls by mapper helpers.
+Observation present-weather raw values are stored as compact JSON text.
+
+## Failure Behavior
+
+Payload decode failures, missing required fields, invalid compact JSON values,
+or schema/write mismatches return errors to feedkit's sink. Feedkit rolls back
+the transaction when a write fails.
+
+Unsupported canonical schemas are ignored by this mapper so other routed events
+can use different sinks without Postgres-specific failures.
+
+## Tests To Inspect
+
+- `internal/sinks/postgres/schema_test.go`
+- `internal/sinks/postgres/map_test.go`
+- feedkit Postgres sink tests when changing generic sink behavior assumptions
+
+## Invariants
+
+- Persist only canonical schemas.
+- Preserve event envelope fields in parent rows.
+- Preserve array order with child positional indexes.
+- Validate required fields before writing.
+- Keep table-contract docs synchronized with schema and mapper changes.

docs/internal/runtime.md

@@ -0,0 +1,110 @@
+# Runtime Internals
+
+## Purpose
+
+`cmd/weatherfeeder` wires the daemon together. It owns process setup and runtime
+composition; provider mapping, source fetching details, and sink persistence
+rules stay in their owning packages.
+
+## Inputs And Outputs
+
+The executable reads `config.yml` from the current working directory through
+feedkit config loading. It builds configured sources, scheduler jobs, sinks, and
+routes, then runs source polling and sink dispatch until shutdown.
+
+Inputs are configured source polls. Outputs are feed events delivered to the
+configured sinks.
+
+## Runtime Flow
+
+The implemented flow is:
+
+1. load `config.yml`;
+2. register weatherfeeder source drivers;
+3. register feedkit built-in sinks and the weatherfeeder Postgres sink;
+4. build source inputs and scheduler jobs;
+5. validate configured expected kinds against source-advertised kinds;
+6. build sinks and compile routes;
+7. run the processor chain `normalize`, then `dedupe`;
+8. run the scheduler and dispatcher concurrently;
+9. shut down on signal or fatal scheduler/dispatcher error.
+
+The in-process event channel is buffered to 256 events. The dedupe processor is
+bounded by `dedupeMaxEntries`, currently 2048.
+
+## Boundaries
+
+- Runtime composition belongs in `cmd/weatherfeeder/main.go`.
+- Source driver behavior belongs under `internal/sources`.
+- Normalizer behavior belongs under `internal/normalizers`.
+- Canonical payloads and schema strings belong in `model` and `standards`.
+- Postgres mapping belongs under `internal/sinks/postgres`.
+
+`cmd/weatherfeeder` should stay thin and should not contain provider parsing,
+canonical mapping, or table-mapping rules.
+
+## Config Fields Used
+
+Runtime wiring consumes the feedkit top-level config sections:
+
+- `sources`: source driver selection, source name, mode, cadence, expected kinds,
+  and driver params;
+- `sinks`: sink driver selection, sink name, and sink params;
+- `routes`: event-kind routing to named sinks.
+
+The executable does not expose CLI flags or config path discovery.
+
+## External Adapters Used
+
+Runtime composition uses feedkit for:
+
+- config loading;
+- source registry and expected-kind validation;
+- scheduler job construction;
+- processor registry and chain execution;
+- normalization and dedupe processors;
+- sink registry and built-in sinks;
+- route compilation and dispatch.
+
+Weatherfeeder registers its own source drivers and its Postgres schema mapper.
+
+## State
+
+Weatherfeeder-owned runtime state is in process:
+
+- event channel contents;
+- the bounded dedupe key set;
+- source instances and their HTTP conditional validators;
+- scheduler and dispatcher goroutines.
+
+There is no weatherfeeder-owned durable scheduler state, checkpoint, replay log,
+or resume marker. Durable persistence is owned by configured external sinks.
+
+## Failure Behavior
+
+Startup failures are fatal and include context such as config index, source name,
+sink name, driver name, or the operation that failed.
+
+At runtime, scheduler and dispatcher errors are sent to a shared error channel.
+Context cancellation and deadline errors are treated as normal shutdown. Any
+other scheduler or dispatcher error is logged as fatal and cancels the process
+context.
+
+The daemon handles `os.Interrupt` and `SIGTERM` with `signal.NotifyContext`.
+After both runtime goroutines return, it logs `shutdown complete`.
+
+## Tests To Inspect
+
+- `cmd/weatherfeeder/main_test.go`
+- source registry tests under `internal/sources`
+- normalizer registration tests under `internal/normalizers`
+- feedkit scheduler, processor, dispatch, and sink tests when changing runtime
+  infrastructure usage
+
+## Invariants
+
+- Keep normalization before dedupe.
+- Keep queue sizes and dedupe bounds explicit.
+- Preserve context-aware shutdown.
+- Keep runtime wiring separate from domain mapping and persistence rules.
+- Keep startup validation failures loud and contextual.

docs/internal/sources.md

@@ -0,0 +1,105 @@
+# Source Internals
+
+## Purpose
+
+Source packages poll upstream weather providers and emit raw feed events. They
+are adapters, not canonical mappers.
+
+Sources should decode only the metadata needed for event identity, effective
+time, and routing policy. Full provider payload interpretation belongs in
+normalizers.
+
+## Inputs And Outputs
+
+Inputs are feedkit `config.SourceConfig` values and upstream HTTP responses.
+Outputs are feed events whose payloads are raw provider JSON and whose schemas
+come from `standards`.
+
+Current drivers:
+
+| Driver | Kind | Raw schema |
+| --- | --- | --- |
+| `nws_observation` | `observation` | `raw.nws.observation.v1` |
+| `nws_alerts` | `alert` | `raw.nws.alerts.v1` |
+| `nws_forecast_hourly` | `forecast` | `raw.nws.hourly.forecast.v1` |
+| `nws_forecast_narrative` | `forecast` | `raw.nws.narrative.forecast.v1` |
+| `nws_forecast_discussion` | `forecast_discussion` | `raw.nws.forecast_discussion.v1` |
+| `nws_weatherstories` | `weather_story` | `raw.nws.weatherstories.v1` |
+| `openmeteo_observation` | `observation` | `raw.openmeteo.current.v1` |
+| `openmeteo_forecast` | `forecast` | `raw.openmeteo.hourly.forecast.v1` |
+| `openweather_observation` | `observation` | `raw.openweather.current.v1` |
+
+## Boundaries
+
+- Source constructors validate source-specific params.
+- Sources use feedkit HTTP helpers for HTTP polling.
+- Sources emit raw events and should not build canonical `model` payloads.
+- Provider helper packages under `internal/providers/<provider>` hold shared
+  parsing and validation helpers.
+- Registration is centralized in `internal/sources/builtins.go`.
+
+## Config Fields Used
+
+All current source drivers use feedkit `HTTPSource`.
+
+Required params:
+
+- `url`
+- `user_agent`
+
+Optional params:
+
+- `conditional`, default `true`;
+- `http_timeout`;
+- `http_response_body_limit_bytes`.
+
+OpenWeather observation sources additionally require the configured URL to use
+metric units. This is enforced by `internal/providers/openweather`.
+
+Source-level `kinds`, when configured, are validated against the source's
+advertised `Kinds()`.
+
+## External Adapters Used
+
+Sources use feedkit's HTTP helper for:
+
+- request construction;
+- `User-Agent` and `Accept` headers;
+- optional conditional GET validators;
+- response body size limits;
+- JSON raw-message fetches.
+
+NWS helpers parse NWS timestamps. Open-Meteo helpers parse provider-local times
+with timezone or UTC-offset data. OpenWeather helpers enforce metric-unit URLs.
+
+## State
+
+HTTP conditional validators are held in each source instance. They are not
+persisted across process restarts.
+
+## Failure Behavior
+
+Constructor failures are returned during startup and stop the daemon. Polling
+failures are returned to the scheduler.
+
+If a source cannot decode minimal metadata from an otherwise successful upstream
+response, it still emits the raw event when possible. The event then falls back
+to default ID/effective-time behavior from feedkit source helpers.
+
+Unchanged conditional responses return no events and no error.
+
+## Tests To Inspect
+
+- `internal/sources/builtins_test.go`
+- provider source tests under `internal/sources/nws`
+- provider source tests under `internal/sources/openmeteo`
+- provider source tests under `internal/sources/openweather`
+- provider helper tests under `internal/providers`
+
+## Invariants
+
+- Emit raw provider schemas from `standards`.
+- Keep provider-to-canonical mapping out of sources.
+- Keep HTTP behavior context-aware.
+- Keep driver registration explicit and stable.
+- Keep source tests independent of live upstream services.

docs/policy/development.md

@@ -0,0 +1,202 @@
+# Development Policy
+
+## Purpose
+
+This document describes how to change `weatherfeeder` safely. It is for
+maintainers and coding agents working in the repository.
+
+Use this alongside the [architecture policy](architecture.md). User-facing CLI,
+configuration, operations, and wire-contract details belong in their canonical
+docs, not here.
+
+## Repository Layout
+
+- `cmd/weatherfeeder/`: executable wiring, sample `config.yml`, and runtime
+  composition tests.
+- `model/`: canonical weather payload structs. JSON tags are part of the wire
+  contract.
+- `standards/`: schema strings, versioning conventions, WMO constants, and
+  shared wire-format policy.
+- `internal/sources/`: source adapters that poll upstream providers and emit raw
+  feed events.
+- `internal/normalizers/`: raw-to-canonical event transforms.
+- `internal/providers/`: pure provider helper code shared by sources and
+  normalizers.
+- `internal/sinks/postgres/`: weatherfeeder-owned Postgres schema and canonical
+  event mapper.
+- `docs/`: current behavior, policies, integration contracts, and roadmap files.
+- `examples/`: maintained, copyable configuration examples.
+
+## Build And Test
+
+Run the full test suite before committing behavior or documentation changes that
+depend on code behavior:
+
+```sh
+go test ./...
+```
+
+Use narrower commands while iterating:
+
+```sh
+go test ./cmd/weatherfeeder
+go test ./internal/sources/...
+go test ./internal/normalizers/...
+go test ./internal/sinks/postgres
+```
+
+Format Go code before committing:
+
+```sh
+gofmt -w <changed-go-files>
+```
+
+Do not require live upstream weather services, NATS, or Postgres for unit tests.
+Use fixtures, local test servers, and package-level tests.
+
+## Coding Conventions
+
+- Keep `cmd/weatherfeeder` focused on composition: config load, registry setup,
+  scheduler jobs, processor chain, dispatch, signal handling, and logging.
+- Keep source fetching separate from normalizer mapping.
+- Match normalizers by schema constants from `standards`, not source names.
+- Keep provider-specific helper code under `internal/providers/<provider>` when
+  both sources and normalizers use it.
+- Keep cross-provider normalizer helpers pure and deterministic under
+  `internal/normalizers/common`.
+- Keep sink persistence mapping isolated under `internal/sinks/<sink>`.
+- Wrap errors with operation context, but do not include whole upstream payloads
+  in errors or logs by default.
+- Prefer explicit registries and small package-level constructors over hidden
+  global behavior.
+
+## Dependency Policy
+
+Prefer the Go standard library unless a dependency materially improves
+maintainability or interoperability.
+
+`feedkit` owns generic daemon infrastructure for config, HTTP source helpers,
+scheduling, processors, dispatch, and sinks. Weatherfeeder code should contain
+weather-domain behavior and narrow adapter logic rather than duplicating feedkit
+infrastructure.
+
+Do not add broad dependencies for small conveniences. Do not let
+dependency-specific types leak across package boundaries unless that dependency
+is the package contract.
+
+## Adding Config Fields
+
+Generic config shape is owned by feedkit. Weatherfeeder-specific config behavior
+belongs in source or sink constructors, registry setup, and tests.
+
+When adding config behavior:
+
+- validate required params at the adapter boundary;
+- keep secrets in environment variables or placeholders, not committed values;
+- update [configuration docs](../config.md);
+- update maintained examples when the change affects normal operation;
+- add or update config-load tests for example files when practical.
+
+## Adding CLI Flags
+
+The executable currently reads `config.yml` from the current working directory.
+If CLI flags are added:
+
+- keep parsing in `cmd/weatherfeeder`;
+- avoid moving config policy into domain packages;
+- update [CLI docs](../cli.md);
+- update tests that exercise command behavior.
+
+## Adding A Source Driver
+
+Source drivers should fetch upstream data and emit raw events with minimal
+metadata decoding.
+
+Checklist:
+
+- implement the driver under `internal/sources/<provider>`;
+- build from `config.SourceConfig`;
+- validate required params in the constructor;
+- use feedkit HTTP helpers for HTTP polling when applicable;
+- emit raw schema constants from `standards`;
+- advertise emitted kinds through `Kinds()`;
+- decode only metadata needed for event ID and effective time;
+- register the driver in `internal/sources/builtins.go`;
+- add constructor, kind, and polling tests;
+- update config docs and examples when operators need new configuration;
+- add provider integration notes when the provider contract needs maintenance
+  context.
+
+## Adding A Normalizer
+
+Normalizers own provider-to-canonical mapping.
+
+Checklist:
+
+- add one normalizer type per normalizer file;
+- match using `Event.Schema`;
+- decode raw payloads into provider structs;
+- map to canonical `model` payloads;
+- use `internal/normalizers/common.Finalize` so envelope handling and float
+  rounding stay consistent;
+- preserve input envelope fields except schema, payload, and effective time;
+- register through the provider package and `internal/normalizers/builtins.go`;
+- add tests for schema matching, key payload fields, effective time, malformed
+  required data, and output validation.
+
+## Adding Canonical Models Or Schemas
+
+Canonical event changes affect multiple contracts.
+
+Checklist:
+
+- update payload structs in `model`;
+- add or update schema constants in `standards`;
+- update [event wire contract docs](../integrations/events.md);
+- update normalizers that produce the schema;
+- update Postgres mapping if the schema is persisted;
+- add tests for wire shape and mapper behavior.
+
+## Adding Postgres Mapping
+
+Weatherfeeder owns the canonical-event-to-table mapping. Feedkit owns the
+generic Postgres sink mechanics.
+
+Checklist:
+
+- update `internal/sinks/postgres/schema.go`;
+- update `internal/sinks/postgres/map.go`;
+- preserve event envelope columns in parent rows when the table supports them;
+- validate required canonical fields before writing;
+- use positional indexes for child rows that represent arrays;
+- update mapper and schema tests;
+- update [Postgres integration docs](../integrations/postgres.md) when the table
+  contract changes.
+
+## Examples And Documentation
+
+Documentation must follow the [documentation policy](documentation.md).
+
+When behavior changes, update the canonical docs in the same change:
+
+- config shape: `docs/config.md`;
+- CLI behavior: `docs/cli.md`;
+- operations and recovery: `docs/operations.md`;
+- troubleshooting: `docs/troubleshooting.md`;
+- external contracts: `docs/integrations/`;
+- internal component behavior: `docs/internal/`;
+- copyable configs: `examples/`.
+
+Keep roadmap content under `docs/roadmap/`. Current-behavior docs must describe
+implemented behavior only.
+
+## Review Checklist
+
+Before committing:
+
+- run focused tests for changed packages;
+- run `go test ./...` for broad behavior or documentation changes tied to code;
+- verify maintained examples still load when examples or config docs changed;
+- check links in changed docs;
+- search for stale paths, unsupported features, and secret-like values;
+- keep unrelated refactors out of the change.

internal/normalizers/doc.go

@@ -70,7 +70,7 @@
 //
 //	weather.<kind>.vN
 //
-// weatherfeeder centralizes schema strings in internal/standards/schema.go.
+// weatherfeeder centralizes schema strings in standards/schema.go.
 // Always use those constants (do not inline schema strings).
 //
 // Example mappings:
@@ -101,8 +101,8 @@
 // Every normalizer type must have a doc comment that states:
 //
 //   - what it converts (e.g., “OpenWeather current -> WeatherObservation”)
-//   - which raw schema it matches (constant identifier from internal/standards)
+//   - which raw schema it matches (constant identifier from standards)
-//   - which canonical schema it produces (constant identifier from internal/standards)
+//   - which canonical schema it produces (constant identifier from standards)
 //   - any special caveats (units, day/night inference, missing fields, etc.)
 //
 // Including literal schema string values is optional,

internal/normalizers/nws/alerts.go

@@ -37,7 +37,7 @@ func (AlertsNormalizer) Match(e event.Event) bool {
 }
 
 func (AlertsNormalizer) Normalize(ctx context.Context, in event.Event) (*event.Event, error) {
-	_ = ctx // normalization is pure/CPU; keep ctx for future expensive steps
+	_ = ctx // normalization is pure/CPU; keep signature aligned with Normalizer.
 
 	// If we can't derive AsOf from the payload, fall back to the existing event envelope.
 	fallbackAsOf := in.EmittedAt.UTC()

internal/normalizers/nws/forecast.go

@@ -42,7 +42,7 @@ func (ForecastNormalizer) Match(e event.Event) bool {
 }
 
 func (ForecastNormalizer) Normalize(ctx context.Context, in event.Event) (*event.Event, error) {
-	_ = ctx // normalization is pure/CPU; keep ctx for future expensive steps
+	_ = ctx // normalization is pure/CPU; keep signature aligned with Normalizer.
 
 	return normalizeForecastEventBySchema(in)
 }

internal/normalizers/nws/observation.go

@@ -32,7 +32,7 @@ func (ObservationNormalizer) Match(e event.Event) bool {
 }
 
 func (ObservationNormalizer) Normalize(ctx context.Context, in event.Event) (*event.Event, error) {
-	_ = ctx // normalization is pure/CPU; keep ctx for future expensive steps
+	_ = ctx // normalization is pure/CPU; keep signature aligned with Normalizer.
 
 	return normcommon.NormalizeJSON(
 		in,

internal/normalizers/openmeteo/forecast.go

@@ -33,7 +33,7 @@ func (ForecastNormalizer) Match(e event.Event) bool {
 }
 
 func (ForecastNormalizer) Normalize(ctx context.Context, in event.Event) (*event.Event, error) {
-	_ = ctx // normalization is pure/CPU; keep ctx for future expensive steps
+	_ = ctx // normalization is pure/CPU; keep signature aligned with Normalizer.
 
 	// If present, prefer the existing event EmittedAt as IssuedAt.
 	var fallbackIssued time.Time

internal/normalizers/openmeteo/observation.go

@@ -40,7 +40,7 @@ func (ObservationNormalizer) Match(e event.Event) bool {
 }
 
 func (ObservationNormalizer) Normalize(ctx context.Context, in event.Event) (*event.Event, error) {
-	_ = ctx // normalization is pure/CPU; keep ctx for future expensive steps
+	_ = ctx // normalization is pure/CPU; keep signature aligned with Normalizer.
 
 	return normcommon.NormalizeJSON(
 		in,

internal/normalizers/openweather/common.go

@@ -8,8 +8,7 @@ import (
 	normcommon "gitea.maximumdirect.net/ejr/weatherfeeder/internal/normalizers/common"
 )
 
-// This file holds provider-specific helpers that are shared across multiple
+// This file holds provider-specific helpers for OpenWeather normalizers.
-// OpenWeather normalizers (observations today; forecasts/alerts later).
 // Keeping these out of observation.go helps preserve the "one normalizer per file"
 // convention while avoiding duplication.
 

internal/normalizers/openweather/observation.go

@@ -37,7 +37,7 @@ func (ObservationNormalizer) Match(e event.Event) bool {
 }
 
 func (ObservationNormalizer) Normalize(ctx context.Context, in event.Event) (*event.Event, error) {
-	_ = ctx // normalization is pure/CPU; keep ctx for future expensive steps
+	_ = ctx // normalization is pure/CPU; keep signature aligned with Normalizer.
 
 	return normcommon.NormalizeJSON(
 		in,

internal/providers/openweather/doc.go

@@ -1,5 +1,5 @@
-// Package openweather contains provider-specific helper code for OpenWeather used by
+// Package openweather contains provider-specific helper code for OpenWeather
-// both sources and normalizers.
+// used by sources and normalizers.
 //
 // Rules:
 //   - No network I/O here.

model/doc.go

@@ -2,7 +2,7 @@
 // Package model defines weatherfeeder's canonical domain payload types.
 //
 // These structs are emitted as the Payload of canonical events (schemas "weather.*.vN").
-// JSON tags are treated as part of the wire contract for sinks (stdout today; others later).
+// JSON tags are treated as part of the wire contract for configured sinks.
 //
 // Compatibility guidance:
 //   - Prefer additive changes.

standards/doc.go

@@ -1,4 +1,4 @@
-// File: internal/standards/doc.go
+// File: standards/doc.go
 //
 // Package standards defines weatherfeeder’s provider-agnostic “project law”:
 //