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    "title": "GAP-RUN-003: Run Forking and Branching",
    "displayName": "GAP-RUN-003: Run Forking and Branching",
    "slug": "docs/harness-features-backlog/gaps/run-lifecycle/gap-run-003",
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    "article": "\n# GAP-RUN-003: Run Forking and Branching\n\n| Field | Value |\n|-------|-------|\n| Category | run-lifecycle |\n| Priority | Medium |\n| Effort | L |\n| Status | Missing |\n\n## Description\nFork a run at any point in its journal. Create branch runs that diverge from a common history.\n\n## Current State\nNo forking. Must create new run and replay manually.\n\n## Target State\nrun:fork creates new run from specific journal point. Fork inherits journal history up to fork point. Multiple forks coexist. Fork relationships tracked. Enables exploring alternative orchestration paths.\n\n## Dependencies\n- [GAP-STATE-006](../state-continuity/GAP-STATE-006.md) -- session rewind for history navigation\n\n## Key Files\n| Component | Path |\n|-----------|------|\n| Journal storage | `packages/sdk/src/storage/` |\n| Replay engine | `packages/sdk/src/runtime/replay/createReplayEngine.ts` |\n| State cache | `packages/sdk/src/runtime/replay/stateCache.ts` |\n\n## Recommendation\nPhase 3 implementation. Add run:fork command. Copy journal up to fork point. Create new run directory with forked history. Track fork relationships in metadata.\n",
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