You have way more trust in test suites than I do. How complex is the code you’re working with? In my line of work most serious bugs surface in complex interactions between different subsystems that are really hard to catch in a test suite. Additionally in my experience the bugs AI produces are completely alien. You can have perfect code for large functions and then somewhere in the middle absolutely nonsensical mistakes. Reviewing AI code is really hard because you can’t use your normal intuitions and really have to check everything meticulously.