The Agent Reviewed Its Own Code and Passed Itself. It Was Wrong.

Short summary

An AI agent can't effectively review code it wrote because it shares the original's blindspots. The author built a red-team verification step using a separate prompt to check for unhappy paths, silent assumptions, premature complexity, and test gaps. But even that found new issues on repeat runs—the lesson is that verification requires multiple independent passes, not a single fix-all review.

• •Agents can't self-review effectively because they share their code's blindspots
• •Red-team verification from an independent perspective catches more issues
• •Verification is iterative—multiple passes are needed, each finding what others missed

Generated with AI, which can make mistakes.