Slashdot has reported:

Anthropic says it created a custom source-control system after the volume of Claude-generated code outgrew the company’s existing Git-based infrastructure. The system, called Scion, is a centralized tool built for the company’s monorepo, alongside AI-assisted code review and search tools.

In a blog post on Tuesday, the company said it merged around 2,500 code changes per day in May 2026 and more than 30,000 per day by September. “We don't expect this rate of growth to slow down anytime soon; the latent demand for merging code is practically infinite, and every bottleneck we remove immediately leads to a further increase in the amount of code we produce,” Anthropic said.

The company developed Scion after several months of model prompting and a five-month migration. Its design resembles Subversion, Apache’s centralized version-control system. Anthropic says the tool was designed for AI agents, with much of the work handled by the server rather than the client.

Source-control queries are available through an application programming interface, allowing internal tools to respond without a local copy of the repository. That approach reduces synchronization, while increasing the need for server speed.

Anthropic describes a “changeset” as the unit of work in Scion. “A changeset stores most of what you'd expect from a commit in git. But where a git commit stores a pointer to the tree, a changeset stores a list of the files that changed relative to its first parent, along with content-addressed pointers to the compressed file contents in blob storage,” the company said.

Anthropic says Scion is a bespoke system that is not suitable for general use, and it does not plan to release it as open-source software. The company argues that other organizations will face similar code-scaling problems in the next few months and shared its approach for that reason. It also has ample funding to pay for the development of custom infrastructure tools.