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    "sourcePath": "docs/harness-features-backlog/gaps/effect-routing/GAP-ROUTE-003.md",
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    "title": "GAP-ROUTE-003: Effect Result Caching and Deduplication",
    "displayName": "GAP-ROUTE-003: Effect Result Caching and Deduplication",
    "slug": "docs/harness-features-backlog/gaps/effect-routing/gap-route-003",
    "articlePath": "wiki/docs/harness-features-backlog/gaps/effect-routing/GAP-ROUTE-003.md",
    "article": "\n# GAP-ROUTE-003: Effect Result Caching and Deduplication\n\n| Field | Value |\n|-------|-------|\n| Category | effect-routing |\n| Priority | Medium |\n| Effort | M |\n| Status | Partial |\n\n## Description\nCache effect results by invocation key. Skip re-execution for identical effects across runs or sessions.\n\n## Current State\nReplay deduplicates within a run via journal. No cross-run caching.\n\n## Target State\nCross-run effect cache indexed by invocation key. Identical effects return cached results without re-execution. Cache invalidation based on input changes. Configurable cache TTL.\n\n## Dependencies\n- None\n\n## Key Files\n| Component | Path |\n|-----------|------|\n| Runtime replay | `packages/sdk/src/runtime/replay/` |\n| Storage | `packages/sdk/src/storage/` |\n\n## Recommendation\nPhase 3 implementation. Add cross-run effect cache. Index by invocation key (SHA256 of processId:stepId:taskId). Configurable TTL.\n",
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