Looking for a Codex alternative? Orchestration may be what you need.
Medley is not another coding agent. It is a Claude Code plugin that turns a prompt into a coordinated multi-agent plan — so you get structure beyond a single session.
Free and local-first. No longer maintained.
Fast coding agents still leave you as the project manager.
Codex-class agents are strong at coding tasks. The challenge appears when work spans many steps, parallel tracks, and days — and you are still the integration layer between sessions.
Searching for a Codex alternative often means you have outgrown one-off sessions — not that a coding agent failed at the job.
Stay in Claude Code. Add /mission.
Medley installs as a Claude Code plugin. Type /mission with a prompt and it decomposes the work into a multi-agent plan, runs coordinated steps, and shows the structure at a URL.
You keep Claude Code as the harness. Medley adds the mission layer — so ambitious work does not collapse into tab chaos.
Multi-agent plans inside Claude Code
Decompose a prompt into parallel and sequential steps — not one ballooning chat.
Models you already use
Bring Claude, GPT, Gemini, and more into Claude Code. /mission coordinates them as a team.
A URL for the structure
See the mission plan and status without reconstructing it from terminal scrollback.
Parallel work with guardrails
Run coordinated steps in parallel inside a visible plan, with approvals when it matters.
How it compares
| Coding agent alone | Medley in Claude Code | |
|---|---|---|
| Unit of work | Session / chat | Mission with a multi-agent plan |
| Coordination | You are the router | /mission decomposes and coordinates |
| Visibility | Terminal scrollback | Plan + status at a URL |
| Parallelism | Manual multi-session juggling | Coordinated parallel steps |
| Harness | Whatever terminal you open | Claude Code plugin |
Codex alternative FAQ
- Is Medley a replacement for Codex?
- No. Medley is a Claude Code plugin. If you want multi-agent structure for ambitious work, install Medley in Claude Code and type /mission.
- Where does Medley run?
- Inside Claude Code. Everything goes through Claude Code today — Medley is not a separate Codex harness.
- Can I use GPT and other models?
- Yes — through Claude Code. Bring the models you configure there; /mission coordinates them in a multi-agent plan.
Install /mission in Claude Code.
Medley is no longer maintained. Existing installations are not being remotely disabled, but future compatibility is not guaranteed.
Maintenance & uninstall instructions