# Replay Command Generator Service

## Module
Cli

## Status
IMPLEMENTED

## Description
Backend service that generates copy-ready replay commands for deterministic verdict reproduction. Builds command strings with all necessary hashes (artifact, manifest, feeds, policy) and provides downloadable evidence bundles as ZIP for one-click replay from the UI.

## Implementation Details
- **Replay Infrastructure**: `src/Cli/StellaOps.Cli/Replay/` -- replay command generation
- **Determinism Harness**: `src/Cli/StellaOps.Cli/Services/DeterminismHarness.cs` -- determinism enforcement
- **Commands**:
  - `stella replay generate <digest>` -- generate replay command with all input hashes
  - `stella replay bundle <digest> --output <path>` -- download evidence bundle as ZIP
- **Output**: Copy-ready command string with all hashes pinned for deterministic reproduction

## E2E Test Plan
- [ ] Run `stella replay generate sha256:abc123` and verify command string output
- [ ] Verify generated command includes artifact hash, manifest hash, feeds hash, policy hash
- [ ] Run the generated command and verify deterministic reproduction
- [ ] Run `stella replay bundle sha256:abc123 --output ./replay.zip` and verify ZIP created
- [ ] Verify ZIP bundle enables offline replay