# AGENTS
## Role
Chromium/Chrome vendor feed connector parsing Stable Channel Update posts; authoritative vendor context for Chrome/Chromium versions and CVE lists; maps fixed versions as affected ranges.
## Scope
- Crawl Chrome Releases blog list; window by publish date; fetch detail posts; identify "Stable Channel Update" and security fix sections.
- Validate HTML; extract version trains, platform notes (Windows/macOS/Linux/Android), CVEs, acknowledgements; map fixed versions.
- Persist raw docs and maintain source_state cursor; idempotent mapping.
## Participants
- Source.Common (HTTP, HTML helpers, validators).
- Storage.Mongo (document, dto, advisory, alias, affected, reference, psirt_flags, source_state).
- Models (canonical; affected ranges by product/version).
- Core/WebService (jobs: source:chromium:fetch|parse|map).
- Merge engine (later) to respect vendor PSIRT precedence for Chrome.
## Interfaces & contracts
- Aliases: CHROMIUM-POST:<yyyy-mm-dd or slug> plus CVE ids.
- Affected: Vendor=Google, Product=Chrome/Chromium (platform tags), Type=vendor; Versions indicate introduced? (often unknown) and fixed (for example 127.0.6533.88); tags mark platforms.
- References: advisory (post URL), release notes, bug links; kind set appropriately.
- Provenance: method=parser; value=post slug; recordedAt=fetch time.
## In/Out of scope
In: vendor advisory mapping, fixed version emission per platform, psirt_flags vendor context.
Out: OS distro packaging semantics; bug bounty details beyond references.
## Observability & security expectations
- Metrics: SourceDiagnostics exports the shared `feedser.source.http.*` counters/histograms tagged `feedser.source=chromium`, enabling dashboards to observe fetch volumes, parse failures, and map affected counts via tag filters.
- Logs: post slugs, version extracted, platform coverage, timing; allowlist blog host.
## Tests
- Author and review coverage in `../StellaOps.Feedser.Source.Vndr.Chromium.Tests`.
- Shared fixtures (e.g., `MongoIntegrationFixture`, `ConnectorTestHarness`) live in `../StellaOps.Feedser.Testing`.
- Keep fixtures deterministic; match new cases to real-world advisories or regression scenarios.
