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Dev.to
5/10/2026
I Tried 3 Layers of AI Code Review So Your Diff Doesn't Have To

I Tried 3 Layers of AI Code Review So Your Diff Doesn't Have To

Short summary

Author split code review into three layers: Layer 1 (hooks + CI) catches mechanical issues; Layer 2 (specialized AI reviewers) finds pattern problems like N+1 queries; Layer 3 (humans) handles design, business logic, and security decisions. This prevented three production bugs that single-AI review missed, by treating different tools as specialists rather than having one model do everything.

  • •Single-AI code review catches easy 70% (style/format) but misses hard 30% (design, business logic)
  • •Three-layer approach: hooks/CI → pattern AI → human review, preventing bugs each layer would miss alone
  • •Name specific tools for each layer (CodeRabbit for patterns, Copilot for refactors, Claude for house rules)

Generated with AI, which can make mistakes.

#ai-tools#ai-agents
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