Claude Code team moves most code review to machines
Anthropic describes how the Claude Code team reviews agent-written code: machines read first, and human attention is kept for the risks that matter.
By GennnAi··1 min read
According to the post, Claude writes about 90% of Claude Code's own code. From June to September, merged pull requests more than doubled while the share reverted fell by over 40%. In Anthropic's monorepo, daily landed changes rose from about 2,500 in May to over 30,000 in September. Every pull request gets a Claude review before any human looks at it, aiming for at most one human in the loop.
Source: Anthropic, published on October 15, 2026.