I spent three months training a custom AI to review my team's pull requests. The first month was a disaster. False positives everywhere, missed bugs, and my teammates hated it. Then I fixed it. Here's exactly what I built and how you can copy it. The Problem That Drove Me Crazy My team of 6 engineers submits about 40 PRs per week. Each review takes 30-45 minutes if I'm thorough. That's 20-30 hours of code review every week. I was burning out. My own code quality suffered because I rushed through reviews. And honestly? I was missing stuff. A production bug slipped through in January 2026 because I skimmed a 500-line PR at 11 PM. I needed help. Not a linter, not a static analyzer, but something that actually understood context. What I Actually Built This isn't a ChatGPT wrapper.…