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Code Review Was Never Mainly About Bugs

September 9, 2026 · 18 min read

Software Engineer

A conveyor belt of identical pale grey slabs, each a stack of code diffs, running away into a dim indigo hall and vanishing in haze. One small wooden desk with a lit amber lamp sits beside the belt; only the two or three slabs inside its pool of light show any teal annotation marks. Every other slab passes untouched into the dark.

Every strategy for surviving the flood of machine-written pull requests optimizes the same thing: catching bugs. The research on code review says catching bugs was never the job it was best at.