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Replay Manifest (Deterministic Replay)

Module

__Libraries

Status

IMPLEMENTED

Description

Complete replay manifest system with versioning, export, validation, CAS (content-addressed storage) integration, and reachability-specific replay writers. Enables deterministic re-computation of verdicts.

Implementation Details

  • ReplayManifest: src/__Libraries/StellaOps.Replay.Core/ReplayManifest.cs -- core manifest model with versioned schema
  • ReplayManifestVersions: src/__Libraries/StellaOps.Replay.Core/ReplayManifestVersions.cs -- version tracking and migration
  • ReplayManifestExtensions: src/__Libraries/StellaOps.Replay.Core/ReplayManifestExtensions.cs -- helper extensions
  • ReplayManifestExporter: src/__Libraries/StellaOps.Replay.Core/ReplayManifestExporter.cs -- multi-partial export pipeline: .Export.cs (main export flow), .BuildInputs.cs (input artifact refs), .BuildOutputs.cs (output artifact refs), .BuildToolchain.cs (tool version pinning), .BuildVerification.cs (verification metadata), .Hashing.cs (content-addressed hashing), .Metadata.cs (export metadata), .Verify.cs (post-export verification), .Convert.cs (format conversion)
  • ReplayManifestWriter: src/__Libraries/StellaOps.Replay.Core/ReplayManifestWriter.cs -- .Manifest.cs (manifest file writing)
  • ReachabilityReplayWriter: src/__Libraries/StellaOps.Replay.Core/ReachabilityReplayWriter.cs -- reachability-specific: .Graphs.cs (graph serialization), .Hashing.cs (graph digest), .Traces.cs (trace recording)
  • StellaReplayBundleWriter: src/__Libraries/StellaOps.Replay.Core/StellaReplayBundleWriter.cs -- multi-partial: .Entries.cs, .Sections.Config.cs, .Sections.Content.cs, .Sections.Outputs.cs, .Sign.cs (DSSE signing), .Write.cs (bundle writing)
  • Export Models: src/__Libraries/StellaOps.Replay.Core/ -- ExportArtifactRef, ExportCiEnvironment, ExportFeedSnapshot, ExportFindingsSummary, ExportInputArtifacts, ExportOutputArtifacts, ExportPolicyBundle, ExportReachabilityInput, ExportSbomInput, ExportToolchainInfo, ExportVerificationInfo, ExportVexInput, ExportSnapshotInfo, ExportMetadataInfo
  • Pinning Models: src/__Libraries/StellaOps.Replay.Core/ -- FeedVersion, KnowledgeSnapshot, LatticeConfig, PolicyBundleRef, RandomSeed, ReachSubgraphRef, SbomRef, TrustConfig, VexDocRef
  • Tests: src/__Libraries/StellaOps.Replay.Core.Tests/
  • Source: Feature matrix scan

E2E Test Plan

  • Verify replay manifest captures all input hashes (feed, SBOM, VEX, policy, tool versions)
  • Test manifest export produces complete bundle with inputs, outputs, toolchain, verification sections
  • Verify ReachabilityReplayWriter serializes graphs with deterministic hashing
  • Test StellaReplayBundleWriter produces DSSE-signed bundles
  • Verify manifest versioning enables backward-compatible upgrades
  • Test export verification detects tampered bundles
  • Verify CAS references maintain content integrity across export/import
  • Test manifest round-trip: export -> import produces identical manifest