brief descs [long/brief/both] brief combat [on/off]
This command toggles between brief and verbose descriptions of rooms. In brief mode, you see the exits, any objects in the room, and any living creatures in the room. Useful for going through a lot of well-known rooms.
The combat option will toggle brief mode for combat, which removes all aim messages, all advanced hand-to-hand flavor messages, and shows all miss messages simply as "You miss."
You would expect this panic file to be a bit shorter, wouldn't you?