Claude Code Team Writes 90% of Code with AI as Rollbacks Drop 40%

The Claude Code team revealed that about 90% of its code is written by Claude, with merged changes more than doubling from June to September while rollback rates fell over 40%, and shared its AI code review practices.

2026-10-19 ~ 2026-10-19 · 2 related posts

• Claude writes 90% of Claude Code's code; merged PRs doubled while reverts fell 40% — PrajwalTomar_ · 2026-10-19
• Claude Code Team: 90% of Code Written by Claude, AI Reviewing AI Ran 50+ Rounds — dotey · 2026-10-19