Looking up a keybinding is a search, so the menu that lists them is the
one that most wants this. Its items do have keys, but only as a reminder
of what they do outside the menu, so nothing is lost by not binding them.
The prompt in front of the input field says what '@' does. It only ever
showed up while the user was typing in the search prompt, so it could
afford to be wordy; on a row that is on screen for as long as the menu
is, it can't.
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>