# Loop
URL: /en-US/docs/agent/loop

Keep the agent working until it calls finish_task.



Loop is a session switch. When it is on, an ordinary assistant message does **not** end the turn. The agent is expected to keep using tools until the task is done, then call `finish_task`.

## Turn it on [#turn-it-on]

On Desktop, enable Loop in the composer (the `/loop` chip). In the CLI TUI, run `/loop`.

`finish_task` is only exposed while Loop is on. If Loop is off and the model still calls it, Spirit rejects the call as an unknown tool.

## When to use it [#when-to-use-it]

Use Loop for a multi-step job you do not want to babysit: implement, test, fix, repeat. Leave it off for a single question or a one-file edit.

Loop does not change [approval](./approvals.mdx). Default approval still pauses on edits and shell.