Host compatibility

Host	Status	Important caveat
Claude Code	Primary profile	Native workers use the host's Agent capability; advisor CLIs are optional
Cursor	Rendered profile and tested capability path	No declared autonomy capability; phase progression remains interactive
Codex	Native subagent profile with parallel fan-out	spawn_agent model selection is host-owned; Luna is preferred but only confirmed routing may be recorded. Fan-out is capped by agents.max_threads with max_depth=1. Claude Fable 5 max and Gemini provide independent review
Generic MCP host	Declared six-capability contract	The operator must verify the host against HOST-CONTRACT.md

Unsupported capabilities are reported by host_status and session_orient with their documented degradation.