Anthropic reinvents source control as Claude floods the world with code

Anthropic's Claude models have generated so much code that the company's coding infrastructure struggled to handle the influx. This surge in code creation is a result of AI's coding capabilities and the availability of inference services. Microsoft's GitHub reported in April that recent availability issues were due to the exponential increase in pull requests and commits.

Anthropic's coding challenges have shifted from productivity bottlenecks to managing the resulting code through source control, build systems, and continuous integration. In May 2026, Anthropic averaged around 2,500 code changes merged daily, increasing to over 30,000 daily by September, according to a company blog post. To address this growth, Anthropic developed a homegrown version control system called Scion, a monorepo scheme similar to Subversion.

This new system is designed to meet the needs of AI agents and offers a centralized alternative to Git. Despite the shift to Scion, Anthropic acknowledges that its approach is not suitable for general use and will remain proprietary.