Run many
One tab is one session. Start as many agents as you need, per project or per worktree.
Free for macOSv1.20.1
Lead your agents,
side by side.
buster7 is a lightweight environment for running several coding agents at once, such as Claude Code and Codex. It runs the CLIs already on your machine, and shows at a glance which agents are working and which are waiting for you.
See them all
The board sorts sessions into working, waiting and exited, so an idle agent never goes unnoticed.
Stay light
Sessions live on the server and drawing runs on the GPU, so adding agents does not slow you down.
Features
Run, watch and check, without switching screens.
Board
Who is working, and who is waiting
Sessions are laid out as waiting, working and exited. An agent waiting for your reply is the first thing you see.
Harnesses
The CLIs you already use
Start Claude Code, Codex and other terminal agents from a new tab. buster7 holds no model of its own, and never takes command of your agents.
Terminal and chat
The TUI as it is, the conversation made readable
The terminal shows the CLI exactly as it draws itself. Switch to chat to read instructions and replies as a conversation.
Flagship agent
One agent for the big picture
An agent you can call up from any project. Ask it how each project is going, or have it pass a request to the session in charge.
Files and diffs
See what changed, right there
Open files and git diffs in the explorer. Click a path printed in the terminal to open it.
Structure
Lightness starts at the foundation.
If handing work to more agents only makes your tools slower, handing it over loses its point. We decided the problem was not a missing feature but the structure, and rebuilt it from the ground up.
- 147MBMemory for the whole app (2 processes)
- 6.1MBOf which the Rust server
- Measured with 8 sessions running, 3 of them claude and one under heavy load.
Terminals as line buffers
No extra process per terminal. Opening more tabs adds very little memory.
One connection, one session
Terminal output travels unmodified, and the client draws it on the native GPU.
Sessions stay on the server
A dropped connection does not stop the work. Reconnect and you pick up where you left off.
Automation
Your agents can drive buster7, too.
With the bundled b7 command and MCP server, agents can open sessions, send instructions and read the screen themselves. Start a reviewer and collect its findings, for example.
$ b7 new --agent codex --name review$ b7 send <id> "Review this diff"$ b7 read <id> --history 50
Put your agents side by side, today.
Open the app and it connects to this Mac on its own. No server to start, no token to type.