How the Claude Code team does code review

The Claude Code team has restructured its code review process to handle the massive volume of code—90 percent of which Claude itself writes—by shifting most reading to automated machines while reserving human reviewers for high-level issues that only they can catch. Between June and September, merged pull requests more than doubled while revert rates fell by over 40 percent, achieved by running continuous, automated reviews during development rather than treating review as a final gate, and by optimizing for minimal human time and attention while investing in making mistakes easy to undo.