Install Medley
Add missions to Claude Code or Codex in a few commands. Uses the models you already have access to.
Three commands inside Claude Code. Missions run as /mission.
Requires Claude Code with plugin support.
- Add the Medley marketplace
/plugin marketplace add Spine-AI/medley - Install the plugin
/plugin install medley - Reload plugins
/reload-plugins
Your next session downloads the mission engine automatically — one code-signed binary. No Node, no build step, nothing to clone.
Then start a mission
/mission <your goal>Answer the short interview, review the proposed plan — each task with its routed agent and model — then say go. Open the live dashboard any time with /dashboard.
Medley decomposes your goal into a multi-agent plan, routes each task to the agent that fits, and shows the structure at a URL.
Updating later
/plugin marketplace update medley && /plugin update medleyYour next session picks up the new engine automatically.
Same plugin, installed from the Codex CLI. Missions run as the $medley:mission skill.
Requires Codex CLI 0.142.0 or newer — older builds cannot parse the plugin manifest. Upgrade with brew upgrade codex or npm i -g @openai/codex@latest.
- Check your Codex version (needs 0.142.0+)
codex --version - Add the Medley marketplace
codex plugin marketplace add https://github.com/Spine-AI/medley - Install the plugin
codex plugin add medley@medley
Your next session downloads the mission engine automatically — one code-signed binary. No Node, no build step, nothing to clone.
Then start a mission
$medley:mission <your goal>Codex plugins cannot add slash commands, so the skill is the entry point. The first time each of Medley’s hooks fires Codex asks you to approve it — approve them all: the Stop hook is how a mission keeps supervising itself on this host.
Medley decomposes your goal into a multi-agent plan, routes each task to the agent that fits, and shows the structure at a URL.
Updating later
codex plugin marketplace upgrade medley && codex plugin add medley@medleyThen start a new thread — Codex binds a plugin’s tools at thread start.