Codex (OpenAI)

Needs: the Codex CLI signed in (codex login). Install it with npm i -g @openai/codex, or use the one shipped inside the ChatGPT desktop app (found automatically on macOS).

ygg agent add --clipboard --here
ygg setup codex                       # codex mcp add agentygg + .agents/skills/agentygg
ygg relay install

Each wake runs codex exec --json in the folder (the MCP server is passed with -c), then codex exec resume <thread> on the next wake, so the agent keeps one thread. Codex options go after --, for example ygg relay install -- --sandbox workspace-write or -m <model>.

Using OpenAI models through OpenCode instead? Set the agent up with ygg setup opencode (see opencode.md).