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Replay Button / Determinism as UX

Module

Cli

Status

IMPLEMENTED

Description

Replay executor with drift tracking, dedicated Replay web service, and determinism golden tests implement the "replay this verdict" capability.

Implementation Details

  • Command Group: src/Cli/StellaOps.Cli/Commands/ReplayCommandGroup.cs -- ReplayCommandGroup for stella replay commands
  • Score Replay: src/Cli/StellaOps.Cli/Commands/ScoreReplayCommandGroup.cs -- score replay operations
  • Replay Infrastructure: src/Cli/StellaOps.Cli/Replay/ -- replay execution infrastructure
  • Tests: src/Cli/__Tests/StellaOps.Cli.Tests/GoldenOutput/DeterminismReplayGoldenTests.cs
  • Commands:
    • stella replay run <digest> -- replay a verdict evaluation
    • stella replay verify <digest> -- verify replay matches original verdict
    • stella replay drift <digest> -- check for drift between original and replayed verdict

E2E Test Plan

  • Run stella replay run sha256:abc123 and verify verdict replayed
  • Run stella replay verify sha256:abc123 and verify replay matches original
  • Run stella replay drift sha256:abc123 and verify drift detection
  • Verify deterministic output (byte-identical across replays)
  • Verify golden output tests pass