- docs/ADDING_A_HOST.md: step-by-step guide for adding a new host
(create config, register, gitignore, generate, test). Covers the
full HostConfig interface, adapter pattern, and validation.
- CONTRIBUTING.md: replace stale "Dual-host development" section with
"Multi-host development" covering all 8 hosts and linking to the guide.
- README.md: consolidate Codex/Factory install sections into one
"Other AI Agents" section listing all supported hosts with auto-detect.
- CLAUDE.md: add hosts/, host-config.ts, host-adapters/, contrib/ to
project structure tree.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Garry Tan