Audit session capitalization: presence-flag ≠ capability (rtk), token verbosity-beats-cardinality, T6c transient-state green, copies-of-secrets incident (magic key rotated). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016zA3Qh2Q1QpcGXzXxKeDHR