◆ An open-source experiment

The IDE was built for one developer, one repository, and one task at a time.

That is no longer how software gets built.

Coding agents can work across multiple tasks, repositories, terminals, and review cycles at once. But today's tools still make you manage that work through scattered windows, tabs, chats, and terminal sessions.

Rook is an experiment in what comes next: an agent-native IDE built around persistent workspaces, concurrent agent sessions, review, and attention management.

It is early. The shape of this new category is not settled yet.

Join us in building it →

The shift

One developer. One repository. One task at a time. Every tool we use — the editor, the terminal, the review UI — quietly assumes it. That assumption is breaking.

When several agents work in parallel across repositories, the bottleneck stops being how fast you can type and becomes how well you can direct, review, and stay oriented across all of it at once. That is the problem rook is built around.

Where it is today

Rook is a real terminal you can install now — a desktop app that replaces ghostty + tmux, built for muscle-memory parity first. The agent is being built from inside a tool that is already trusted. Parity first, magic second.

rook — 1 · main
agent ▸ split pane, run tests
✓ 42 passing · 0.8s
~/rook 

Join us in building it

If the tools you have today do not fit the way you actually work with agents, come help define what replaces them.