Anthropic code merges up 12x in 4 months; 7 engineers build new source control with Claude
bittingthembits · x · 2026-10-14
- Anthropic's monorepo went from 2,500 merged changes/day in May to 30,000+ in September (30,401 on Sep 9) — a 12x jump in four months.
- Git couldn't keep up, so 7 engineers working with Claude built a new source control system, code review tool, and related systems, fully migrated in five months.
- Results: 200x smaller CPU/memory footprint than old git mirrors, 100x faster checkouts; an AI-rewritten ingestion pipeline uses 20x less memory and runs 4x faster.
- Every engineer now rates Claude as better at writing code than they are — the job shifted to judgment, often telling Claude "no." Writing code is no longer the bottleneck; human-speed systems are.
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