- Add docs/agency-framework.md: full explanation of the project memory model, session protocols, memory frontmatter field, CLI reference, coach meta-agent usage, and protocols preview (Part 3) - Update README: reposition as agency framework (not just agent library), add Agency Framework section with memory CLI examples, update feature list to 18 agents, add sys-medic and coach to agent listing Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>