- Add escalation categories (decision, help, blocked, failed, emergency, gate_timeout, lifecycle) - Document tiered routing flow (Deacon -> Mayor -> Overseer) - Add decision pattern for structured async communication - Document integration points for gates, witness, and refinery - Define implementation phases Closes: bd-0sgd 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>