AGENTS

Role

Japan JVN/MyJVN connector; national CERT enrichment with strong identifiers (JVNDB) and vendor status; authoritative only where concrete package evidence exists; otherwise enriches text, severity, references, and aliases.

Scope

Fetch JVNRSS (overview) and VULDEF (detail) via MyJVN API; window by dateFirstPublished/dateLastUpdated; paginate; respect rate limits.
Validate XML or JSON payloads; normalize titles, CVEs, JVNDB ids, vendor status, categories; map references and severity text; attach jp_flags.
Persist raw docs with sha256 and headers; manage source_state cursor; idempotent parse/map.

Participants

Source.Common (HTTP, pagination, XML or XSD validators, retries/backoff).
Storage.Mongo (document, dto, advisory, alias, affected (when concrete), reference, jp_flags, source_state).
Models (canonical Advisory/Affected/Provenance).
Core/WebService (jobs: source:jvn:fetch|parse|map).
Merge engine applies enrichment precedence (does not override distro or PSIRT ranges unless JVN gives explicit package truth).

Interfaces & contracts

Aliases include JVNDB-YYYY-NNNNN and CVE ids; scheme "JVNDB".
jp_flags: { jvndb_id, jvn_category, vendor_status }.
References typed: advisory/vendor/bulletin; URLs normalized and deduped.
Affected only when VULDEF gives concrete coordinates; otherwise omit.
Provenance: method=parser; kind=api; value=endpoint plus query window; recordedAt=fetched time.

In/Out of scope

In: JVN/MyJVN ingestion, aliases, jp_flags, enrichment mapping, watermarking. Out: overriding distro or PSIRT ranges without concrete evidence; scraping unofficial mirrors.

Observability & security expectations

Metrics: SourceDiagnostics emits concelier.source.http.* counters/histograms tagged concelier.source=jvn, enabling dashboards to track fetch requests, item counts, parse failures, and enrichment/map activity (including jp_flags) via tag filters.
Logs: window bounds, jvndb ids processed, vendor_status distribution; redact API keys.

Tests

Author and review coverage in ../StellaOps.Concelier.Connector.Jvn.Tests.
Shared fixtures (e.g., MongoIntegrationFixture, ConnectorTestHarness) live in ../StellaOps.Concelier.Testing.
Keep fixtures deterministic; match new cases to real-world advisories or regression scenarios.

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