I stopped reviewing pull requests manually on March 1, 2026. It wasn’t a strategic decision born from a desire to optimize my workflow. It was pure exhaustion. I had spent the previous two weeks staring at diffs that ranged from trivial whitespace changes to complex refactors of our legacy authentication module. My brain felt like mush. So I hooked up "ReviewBot," a local LLM agent configured with our team’s style guide and security rules, to our GitHub repository. The promise was simple. It would catch syntax errors, flag potential security vulnerabilities, and enforce naming conventions. I would only step in for architectural decisions and logic validation. I expected to save ten hours a week. I expected cleaner code. What I got was a massive increase in velocity and a subtle, creeping decay in code quality that took me three weeks to notice. Here is exactly what happened during that month, including the metrics and the specific failure modes I encountered.…