mathiasandClaude Sonnet 5
e2cb315b31
Review caught a real bypass in the #111 fix before merge: the previous commit validated only the frontmatter fence the caller supplied, not the merged result that actually reaches disk. A caller could blank claim_provenance alone (absent per claim.present's "empty is unset" rule) while half_life/applies survived untouched from the prior note — each side individually looked fine, the merged envelope on disk was the unprovenanced one the whole check exists to catch. That's the exact laundering #111 named as the worse of its two gaps. Fixed by computing the envelope from fm (post-merge, pre-write) instead of contentFM (the caller's raw fragment). Flip-tested: reverting to fragment-only validation turns the new adversarial test red; the merged validation turns it green. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>