What we learn building code review

Real pull requests, real misses, and what we changed. Every number here comes from a review we ran.

• October 14, 2026#ai-review#code-review#engineering

  Three AI code reviewers, same 18 PRs: two mostly found a subset of the third

  On identical input, findings ranged from 40 to 2, and almost everything the smaller reviewers found, the largest found too. What a second reviewer is for.

• October 14, 2026#laravel#change-impact#ai-review

  Our reviewer missed a Laravel bug. Here is what we changed.

  A Laravel bug escaped diff-only review because the broken override was outside the pull request. Here is how we added bounded change-impact context.