Redesigning source control at Anthropic
AI-generated overview
In 2026 Anthropic’s code merge rate exploded from 2,500 to over 30,000 per day, overwhelming Git’s capacity. To cope, a seven‑person team built Scion, a centralized system capable of handling 100 GB history and 25 million daily checkouts. The migration finished in five months. The article links the surge to new model classes and discusses design choices like offline support and adversarial review.
What’s discussed
- In May 2026 Anthropic merged ~2,500 code changes per day; by September that rose to over 30,000.
- Scion’s history of the main branch is almost 100 GB; a compressed working copy exceeds 25 GB.
- The team performed ~25 million code checkouts per day for CI.
- The migration took five months and involved seven people.
A short overview on Fiper. Read or listen to the full work at the original source.