Maybe the useful distinction is understanding what a PR does versus knowing how to tell if it’s wrong. A quiz can check the first, but the second is often where review matters most.

I’d be interested in a version that helps the reviewer identify one assumption the change depends on and a concrete way to test it. That could keep the exercise small while making it useful, especially if the reviewer spots something the AI-generated summary missed.

Keeping it optional also lets people reach for it when they’re uncertain, instead of turning it into another checkbox as PR volume grows.