Start a shell command as a background task and return immediately.

Args: command: The shell command to run (e.g. "pytest -q" or "npm run build"). cwd: Working directory for the command. Defaults to the server's cwd. timeout_seconds: If set, the task is killed and marked 'timed_out' when it runs longer than this. Recommended for unattended jobs.

Returns the new task's id and initial status. The command keeps running after this call returns — use task_status / task_result to follow it.

Check on a task: working, completed, failed, cancelled, timed_out, or interrupted.

Get a task's captured output (stdout+stderr merged).

Args: task_id: The task to inspect. Works for finished AND still-running tasks, so you can peek at live progress. tail_lines: How many trailing lines of output to return.

Cancel a running task, killing its whole process tree.

List recent tasks, newest first.