We don’t talk enough about code review and it’s probably why everyone’s doing it wrong.
Having another agent review your PR is a meaningless rubber stamp. Even if you use a different model, a reviewer agent reads code, but it doesn't run it. Two agents agreeing is not evidence of anything.
If you truly want it verified the only way is an isolated devbox with real tests, previews, and logs. If you’re a serious developer get serious about review.