Follow-up to the 2026-07-16 CCR-2026-0004 verify disclosure incident. Strand A:
capabilities-based verification, safe access transport, masking (defense-in-depth),
agent read-boundary, EXPOSED taint convention, and a structured-but-advisory
rotation/re-establishment guidance registry surfaced via warden. Strand B deferred.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
