Free, open-source, MIT licensed.

Why I built it:

- I wanted a lightweight UI as nice as the Codex app, but without the complexity and the custom diffs on the side

- I want files and diffs open straight in my editor!

- And I wanted both agents - Anthropic + OpenAI — in one place

How it works:

- No API keys, no OAuth, no separate billing — it just uses whatever you're already logged into. So your Claude Max and ChatGPT/Codex subscriptions both work out of the box.

- Talks to Claude Code via the Claude Agent SDK

- Talks to Codex via its app-server JSON-RPC

For now it's MacOS-only but can be easily extended to other platforms.