Your Code Review Process Is Optimized for the Wrong Failure Mode
· 8 min read
Your code review checklist was designed for a world where the primary defect was a misplaced semicolon or a forgotten null check. That world is gone. AI-generated code rarely has typos. It almost always compiles. And it is quietly degrading your codebase in ways your review process was never built to catch.
Analysis of hundreds of thousands of GitHub pull requests reveals that AI-generated code creates 1.7x more issues than human-written code — roughly 10.8 issues per PR versus 6.5. But the defect distribution has shifted fundamentally. Logic errors are up 75%. Performance issues appear nearly 8x more often. Security vulnerabilities are 1.5–2x more frequent. The bugs that matter most are exactly the ones your traditional review gates miss.
