Phase 8: Implement outcome linker (decision → metrics/incidents)

[cursor]

Background

Outcome node schema exists (V004__outcome_nodes.cypher). Trust scoring is designed to update from outcome validation. No outcome linker service yet.

Problem Statement

Decisions are stored without linking to what happened afterward, so memory cannot self-correct from real results.

Proposed Solution

• Implement outcome linker: connect Decision nodes to Outcome nodes (incidents, metrics, deploy results)
• Update trust scores when outcomes corroborate or refute a decision
• Seed at least one outcome-linked decision in the demo catalog
• Expose linkage in Explore/Review (or API) enough to demo

Acceptance Criteria

• Outcome linker writes Outcome nodes + edges from Decision
• Trust update path documented and tested
• At least one demo decision shows an outcome link
• Unit/integration tests cover link + trust update

Files / Modules Affected

intelligence/ (new outcome linker), graph/, scoring/trust_scorer.py, scripts/demo_catalog.py, API/query as needed

Phase: 8 — Outcome tracking + coverage scoring