Once results appear, you can do everything without the mouse:
Up / Down – Move selection up or down in the list. The selected item is highlighted; on larger screens a preview panel may show a snippet for the selected item.
Enter – Open or run the selected item. Navigate to that post/screen or execute the command. The Command Bar closes.
Escape – Close the Command Bar.
Typing – Focus stays in the search field. Keep typing to refine results; use Arrow keys to move in the list without clearing the query.
Flow: Ctrl+K, type (e.g. "report"), Arrow Down to the post or command, Enter. You are there. No clicks.
In Step 5 we will use suggestions, recent items, and run commands without the menu. Plus keyboard and accessibility across the admin.