This is a cool idea actually, even for a separate extension. Cursor doesn’t offer an API yet (so I’m not sure how to detect when Cursor itself is “thinking”), but it could be always-on.

I recall a site adding Memory Match minigame while a build was running (was it Vercel?), and I couldn’t help playing it every time.

Add in tic-tac-toe and a few others and you have yourself a cool extension.

Maybe a more constructive game also: a multiple choice quiz about your code to make sure you understand it?