Benbentwo/choo-choo

Each agent gets its own git worktree. You review the diffs and ship the PRs from one window.
An open-source, MIT-licensed alternative to Conductor.
Download · Features · Coming from Conductor · Contributing
## Why Choo Choo
On November 4, 2026, the Conductor team announced that Conductor is joining Meta. Conductor Cloud is winding down, and the Mac app will keep getting new models and critical bug fixes until early 2027. Congratulations to the team: they built a workflow a lot of developers now rely on.
Choo Choo is an open-source, community-driven option for people who want to keep working that way for the long run. The code is MIT-licensed, so anyone can read it, fork it and keep it going. It is built to be a drop-in switch: it follows Conductor's layout and workflow closely, and it reads the same conductor.json scripts and CONDUCTOR environment variables, so your repos work without changes. See docs/PARITY.md for the full feature checklist.
> Choo Choo is an independent project. It is not affiliated with, endorsed by or sponsored by the makers of Conductor or by Anthropic. "Conductor" and "Claude" are trademarks of their owners and are used here only to describe compatibility.
## Features
Parallel agents, isolated worktrees. Press + to start a workspace: a fresh git worktree and branch where a Claude Code agent works without touching your other checkouts.
Chat built for coding agents. Opus, Sonnet and Haiku with effort levels, plan mode, @file mentions, /slash commands and skills, image attachments, and "revert to here" checkpoints.
Review before you ship. Changes view with diffs, an agent code review whose findings show inline with Fix buttons, and per-tool permission prompts.
PRs in one click. Create a PR (or draft), watch checks, re-run failures and squash-merge, all through your gh login.
Real terminals. Setup, Run (⌘R) and terminal tabs per workspace, driven by choo-choo.json or conductor.json.
Codex too. Optionally run OpenAI's Codex CLI as a workspace agent.
Keyboard first. ⌘K search, ⌘T/⌘W tabs, ⌘B/⌘J panels, ⌘⇧U next unread.
Native Mac app. Apple silicon and Intel builds, desktop notifications, auto-update from GitHub releases.
## Coming from Conductor
| | Conductor | Choo Choo |
| Source code | Closed | Open, MIT license |
| Agents | Claude Code, Codex | Claude Code (official Agent SDK), Codex |
| Workspaces | Git worktrees | Git worktrees at ~/choo-choo/workspaces/ / |
| Repo scripts | conductor.json | choo-choo.json, falling back to conductor.json |
| Env vars | CONDUCTOR | CONDUCTOR, plus CHOO aliases |
| PRs and checks | Built in | Built in, via the gh CLI |
| Data | On your Mac | On your Mac, plain JSON files |
To switch, install Choo Choo, sign in, then open Settings > Import from Conductor. It shows a preview, then brings over your projects, open workspaces (left where they are), their chats and your default model. Claude chats keep their session, so the agent picks up with full context. Conductor's database is copied and read, never changed. Your existing conductor.json setup and run scripts are picked up as they are.
Using Conductor Cloud? The import reads your Mac's local Conductor data, so first move each cloud workspace to your Mac in Conductor (right-click it > Transfer to local), then import.