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Excititor · Graph Overlay Prep (GRAPH-21-002)

  • Date: 2025-11-20
  • Depends on: GRAPH-21-001 linkout contract
  • Working directory: src/Excititor/StellaOps.Excititor.WebService

Overlay payload

  • Aggregates output of GRAPH-21-001 into overlay items for inspectors:
    • purl
    • summary: open, not_affected, under_investigation, no_statement counts
    • latestModifiedAt (ISO-8601 UTC)
    • justifications[] (optional) — unique justification codes present for the PURL
    • provenancesources[] (unique source IDs), lastEvidenceHash
  • Endpoint: GET /v1/graph/overlays?purl=<purl>[&purl=...]&includeJustifications=true|false
  • Sorting: results ordered by input PURL list; within overlays, justifications sorted ascending.

Caching

  • Cache key: tenant + sorted PURL list + includeJustifications flag; ttl 5 minutes default, configurable excititor:graph:overlayTtlSeconds.
  • Cache metadata returned: cached: true|false, cacheAgeMs.

Acceptance for prep completion

  • Overlay shape and caching contract defined; implementation can proceed once GRAPH-21-001 is available.