The weakest version of AI code review is also the easiest one to demo.
Take a diff. Paste it into a model. Ask for a review. Get back a wall of comments that sound reasonable, half of which are too vague to act on and a few of which are just wrong enough to waste everyone's time.
That is not a review system. That is a comment generator.
The useful version looks much less magical. It looks like routing. It decides which parts of a change deserve attention, which reviewer should inspect them, what severity means, when a human needs to approve the result, and when the bot should stay quiet.
That last part matters more than people admit. Developers do not ignore review bots because they hate automation. They ignore review bots because the bots train them to ignore noise.
