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    "sourcePath": "docs/harness-features-backlog/gaps/run-lifecycle/GAP-RUN-001.md",
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    "title": "GAP-RUN-001: Run Comparison and Diffing",
    "displayName": "GAP-RUN-001: Run Comparison and Diffing",
    "slug": "docs/harness-features-backlog/gaps/run-lifecycle/gap-run-001",
    "articlePath": "wiki/docs/harness-features-backlog/gaps/run-lifecycle/GAP-RUN-001.md",
    "article": "\n# GAP-RUN-001: Run Comparison and Diffing\n\n| Field | Value |\n|-------|-------|\n| Category | run-lifecycle |\n| Priority | Medium |\n| Effort | M |\n| Status | Missing |\n\n## Description\nCompare two runs: input differences, effect divergence points, output deltas. Enable A/B testing of process changes.\n\n## Current State\nNo run comparison. Must manually diff journal files.\n\n## Target State\nrun:diff command comparing two runs. Shows: input differences, first divergence point in journals, effect outcome differences, output deltas. Enables A/B testing of process definition changes.\n\n## Dependencies\n- None\n\n## Key Files\n| Component | Path |\n|-----------|------|\n| Journal storage | `packages/sdk/src/storage/` |\n| CLI commands | `packages/sdk/src/cli/` |\n\n## Recommendation\nPhase 3 implementation. Add run:diff command. Compare journals event-by-event. Highlight divergence points and outcome differences.\n",
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