Keyboard shortcuts

Shortcut	Action
⌘K / Ctrl+K	Open the command palette
Esc	Close the palette, a menu or a dialog
Enter in the to-do box	Add the to-do
Enter in the palette	Run the selected action
↑ ↓ in the palette	Move the selection

The terminal behaves like your normal terminal, so its usual shortcuts work (Ctrl+C, Ctrl+L, history with ↑).