Anthropic builds Scion, a custom source control system, to scale code production

Claude: Claude is Anthropic's family of large language models optimized for reasoning, coding, and safe interactions. The news highlights Claude's role in autonomously generating and iterating on code at unprecedented scale, which directly caused the infrastructure bottlenecks that led to building Scion. Anthropic: Anthropic is an artificial intelligence research and safety company that develops advanced AI models. In this news, the company details how its internal use of AI for coding has dramatically increased code production, prompting the creation of a custom source control system called Scion to replace git for its large monorepo. Prior Art: Large technology companies have previously developed custom version control systems for massive codebases, such as Google’s Piper and Meta’s Sapling. Future Trends: Organizations using AI coding tools are expected to encounter similar scaling pressures on human-designed developer infrastructure in the coming months. Agentic Development: AI agents capable of writing and managing large volumes of code are changing core assumptions in software development workflows and tooling design.