Codify the /trekreview Phase 5 reviewer JSON contract as a validated schema so
main validates each reviewer's output instead of merely JSON.parse-ing it, and
re-asks on schema failure (not just parse failure). Retires the fragility at
trekreview.md:202-204. No Workflow dependency (S8 tier 1, ships regardless).
New lib/review/findings-schema.mjs (3-layer Content -> Raw-text -> CLI shim,
reusing result.mjs error-shape + rule-catalogue RULE_KEYS/SEVERITY_VALUES):
- validateFindings(payload): hard errors on load-bearing fields the dedup
triplet + verdict depend on — file, rule_key (in catalogue), severity (enum),
line (integer >= 0); accumulates all errors; per-finding location.
- extractFindingsBlock(text): last fenced ```json block (the :202 contract).
- validateReviewerOutput(text): extract + parse + schema, unifying parse and
schema failures under one bounded re-ask path.
Stable codes: FINDINGS_NOT_OBJECT/_NOT_ARRAY/_NO_JSON_BLOCK/_PARSE_ERROR (top),
FINDING_MISSING_FILE/_MISSING_RULE_KEY/_UNKNOWN_RULE_KEY/_BAD_SEVERITY/_BAD_LINE
(per-finding). Descriptive fields + unknown keys tolerated (forward-compat).
Phase 5 prose: replace "parse last json block; on parse error re-emit" with
"validate against findings-schema; on failure re-ask conforming JSON, bounded
N=2; never feed unvalidated findings to the coordinator".
TDD: 27 failing tests first, then minimal code to pass. Suite 606 -> 647
(645 pass / 2 skip / 0 fail). claude plugin validate clean (only the known
root-CLAUDE.md warning). Plan: docs/W1-narrow-wins-plan.md S9.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LqBYc8Ltrk7LipyJmGxXiB