An agent that exits on /exit never turns `working`, so send_keys_safe returns 4 although the stop then ends cleanly. The line now says the delivery is unconfirmed and that the stop waits for the session to exit; the kill steps keep their own lines, printed only when they run. Exit judgement and the kill chain are unchanged. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>