Explained

Run Claude Code in the cloud

Open Murmell in a browser, open a window, and Claude Code starts on a machine we run. It is the CLI itself in a real terminal, not a chat box wired to an API, and it keeps working after you shut your laptop.

Codex runs the same way, in a window of its own on the same canvas and in the same project directory.

Your laptop stops being the runtime

There is nothing to install. The agent’s process and its checkout live on the cloud machine. Your browser sends keystrokes and draws what comes back, so a closed lid has no effect on a run in progress and a long build does not heat up the machine you are sitting at.

It also means the computer in front of you stops mattering. Any machine with a browser reaches the same canvas and the same session. Claude Code in the browser is that half of it.

The credentials do not travel with the agent

Connecting a code host takes a token with repo scope. It is encrypted before it is stored, and it never reaches the machines your agents run on. The machine that executes agent code holds no database and no decryption key.

Agents can read the repository history. They cannot rewrite it. A cloud sandbox for AI agents lists what is on that machine and what is deliberately not.

The reason to move it off your machine

Running one agent on somebody else’s computer would be a convenience. The reason it is worth doing is that several agents can then share one directory. An agent claims the paths it is about to touch, and the board records one holder per path and refuses everyone else until the holder releases it.

That rule is enforced by our server rather than requested in a prompt, which is what makes three agents in one checkout survive the afternoon. Multiple AI agents on one repo has the mechanism, and the home page draws it.

The machine is disposable, the repository is not

Every project gets a private repository. Work is pushed to it as the project goes, and a machine about to be torn down pushes once more before it goes. The code outlives the machine that wrote it, which is what lets us throw machines away freely.