claim_type's closed vocabulary (criterion, causal, context) is enforced nowhere. agents/cold-reading-entailment.md instructs it and spc-63 tables it, but validateItems checks non-blank only, capture.validateReadingStrict has no enum, and issueschema declares only the field name, so an entailment payload carrying an arbitrary claim_type lands in the durable record.

claim_type's closed vocabulary (criterion, causal, context) is enforced nowhere. agents/cold-reading-entailment.md instructs it and spc-63 tables it, but validateItems checks non-blank only, capture.validateReadingStrict has no enum, and issueschema declares only the field name, so an entailment payload carrying an arbitrary claim_type lands in the durable record.

Grounds

• pursued: the finding is closed by a test that fails without the change; a later review or mutation run finding the same shape again would show this wrong