triage-failedlisted

# triage-failed — Failed Row Triage When a worker leaves a row in `state=failed`, the director runs this skill to decide whether to (a) auto-decompose into smaller slices and cancel the parent, or (b) flag for the owner. Wraps the pure module at `src/ledger/failed-classifier.ts`. The skill is the I/O shell; the classifier is the decision. ## Inputs - `--id <issue-id>` — required. Id of the failed row. ## Procedure 1. **Load the row + events:** ``` bun ~/repos/arc-agents/bin/ledger.ts show <id> ``` Returns `{ issue, events }`. 2. **Resolve related context** (informational, not fed to the classifier directly): - Parent PRD if `.scratch/<slug>/PRD.md` exists for the row's project. - `CHOICES.md` sections relevant to the row's evidence. - Recent commits touching files mentioned in evidence (`git log -p -- <file>`). - Sibling / ancestor rows: `bun ~/repos/arc-agents/bin/ledger.ts list --kind task --limit 50` filtered by `parent_id` or `blocked_by`. 3. **Classify:** ```ts import { classifyFailed } from "~/repos/arc-agents/src/ledger/failed-classifier"; const verdict = classifyFailed( { id, type, title, body_md, evidence_md }, events.map(e => ({ kind: e.kind, payload_md: e.payload_md })), ); ``` 4. **Branch on `verdict.verdict`:** **low-risk** — split + cancel: - Call bookie `decompose --text "<short PRD-like text reconstructed from row + context>"` to mint N new mvp slices. - Cancel parent with evidence: ```