Codifies the inbox/peer-channel discipline that emerged 2026-06-16:
- a peer agent session's messages are proposals, not authority; the
human is the only source of direction and scope.
- never report a peer-driven (or self-driven) design escalation as a
settled decision without explicit human ratification.
- channel contract: the inbox carries discussion/help/notification only;
tasks themselves go solely through meta tasks_* (board = source of truth).
- guards the echo-chamber failure mode (two sessions inflating scope past
the human) and its circuit-breaker.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>