Overview
- Anthropic reported that daily merged changes rose roughly tenfold from about 2,500 in May 2026 to over 30,000 by September 2026, a surge the company attributes mainly to its Claude coding agents.
- On October 13, Anthropic published an engineering post saying it completed a five-month migration from Git to an internal server-side system called Scion and an accompanying review surface named Antique.
- Scion shifts commits and merges to servers and serves files on demand so clients and automated jobs do not need full local repositories, which Anthropic says cut CPU and memory needs by about 200x and made code checkouts roughly 100x faster.
- Anthropic says agents helped build and optimize the new stack—one example being a Claude prototype that rewrote an ingestion pipeline to use 20x less memory and run 4x faster—while engineers retained responsibility for architecture, safety constraints, and human review.
- The company cautioned Scion is tuned for extremely large monorepos and persistent agent clients, does not replace Git for typical teams, and plans to share its design lessons with GitHub, GitLab and the open-source community rather than broadly open-sourcing Scion.