Keyboard

Key	Action
Enter	Submit the line.
Tab	Accept the highlighted completion.
Up, Down	Move through the completion palette when it is open; otherwise walk history.
Right	Accept the inline prediction of the best match.
Escape	Dismiss the palette.
Home, End, Left, Right	Move within the line.
Ctrl+L	Clear the transcript.
Shift+Up	Select the last transcript line. Shift+Up and Shift+Down extend the selection, y copies it, Escape cancels. Dragging with the mouse selects as well.
Ctrl+Q	Quit.
Ctrl+C	Quit.

The palette opens while the first word of the line is a prefix of an opcode or, when it starts with a dot, of a command. Each row shows the name, its stack transition, and a short description.