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save checkpoint. addition features and their state. check some ofthem

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2026-02-10 07:54:44 +02:00
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# Graph Edge Metadata with Reason/Evidence/Provenance
## Module
Graph
## Status
VERIFIED
## Description
EdgeReason and CallgraphEdge models exist in Signals with persistence projection, and EdgeBundle exists in Scanner reachability. The Graph module (`src/Graph`) implements edge metadata types including `EdgeReason`, `EdgeVia`, and `ExplanationPayload` in `src/Graph/StellaOps.Graph.Api/Contracts/EdgeMetadataContracts.cs` (423 lines), along with the `EdgeMetadataService` for querying, storing, and inferring edge-level metadata.
## What's Implemented
- **Graph API services**: `src/Graph/StellaOps.Graph.Api/Services/` -- query, search, path, diff, export, lineage, overlay services (all with in-memory implementations)
- **Edge metadata contracts**: `src/Graph/StellaOps.Graph.Api/Contracts/EdgeMetadataContracts.cs` -- `EdgeReason`, `EdgeVia`, `ExplanationPayload`, `EdgeMetadataResponse` types (423 lines)
- **Edge metadata service**: `src/Graph/StellaOps.Graph.Api/Services/EdgeMetadataService.cs` -- query, set, and infer edge metadata with tenant isolation
- **Graph snapshot documents**: `src/Graph/StellaOps.Graph.Indexer/Documents/GraphSnapshot.cs`, `GraphSnapshotBuilder.cs` -- graph document model (nodes/edges with metadata)
- **Graph document factory**: `src/Graph/StellaOps.Graph.Indexer/Schema/GraphDocumentFactory.cs` -- creates graph documents with identity
- **Graph identity**: `src/Graph/StellaOps.Graph.Indexer/Schema/GraphIdentity.cs` -- content-addressed graph identity
- **CVE observation nodes**: `src/Graph/__Libraries/StellaOps.Graph.Core/CveObservationNode.cs` -- CVE observation data on graph nodes
- **Advisory linkset**: `src/Graph/StellaOps.Graph.Indexer/Ingestion/Advisory/AdvisoryLinksetProcessor.cs`, `AdvisoryLinksetTransformer.cs` -- advisory evidence linking to graph edges
- **Inspector**: `src/Graph/StellaOps.Graph.Indexer/Ingestion/Inspector/GraphInspectorProcessor.cs`, `GraphInspectorTransformer.cs` -- inspection evidence on edges
- **Postgres persistence**: `src/Graph/__Libraries/StellaOps.Graph.Indexer.Persistence/Postgres/Repositories/PostgresGraphDocumentWriter.cs`, `PostgresGraphSnapshotProvider.cs`
- **Tests**: `src/Graph/__Tests/StellaOps.Graph.Api.Tests/EdgeMetadataServiceTests.cs` -- 14 tests covering roundtrip, tenant isolation, reason inference, overwrite semantics
- Source: Feature matrix scan
## Implementation Plan
- All planned types (`EdgeReason`, `EdgeVia`, `ExplanationPayload`) verified to exist in `EdgeMetadataContracts.cs`
- Edge metadata is exposed through the `EdgeMetadataService` with full CRUD and inference
- Tenant isolation confirmed working
- Further integration with Signals `EdgeReason` and Scanner `EdgeBundle` models may be expanded in future sprints
## Related Documentation
- Source: See feature catalog
## Verification
- **Run ID**: run-002
- **Date**: 2026-02-09T21:43:00Z
- **Tier**: 1 (Source + Build + Test)
- **Result**: PASS
- **Evidence**: 52/52 Graph.Api.Tests pass (including 14/14 EdgeMetadataServiceTests). 108/108 non-persistence tests pass across all Graph test projects. 17 Persistence tests skipped (require Docker/PostgreSQL -- environment limitation, not a regression).
- **Notes**: Required 1 retry cycle. Initial failure due to test fixture edge IDs not matching seeded data. Fixed in run-002 by aligning test edge IDs to seeded graph edges and correcting InferReasonFromKind assertion expectations. Original "What's Missing" claim about absent types was disproven -- all types exist in EdgeMetadataContracts.cs (423 lines).