Anthropic replaced Git with Scion, an in-house source control system built by seven engineers to handle over 30,000 daily ...

Running multiple instances of Claude Code or Codex in parallel increases implementation speed. However, when changes concentrate on the same branch, the bottleneck shifts from the model to clone, ...

In May 2026, Anthropic averaged roughly 2,500 code changes merged per day. By September, that figure had climbed to over 30,000 per day, a 12-fold increase in four months, according to ...

Anthropic's Claude is writing so much code that the world-standard tool 'git' has become clogged. So, a team of 7 built their own internal tool called 'Scion' and switched over completely in 5 months.

Anthropic recently detailed how it migrated its monorepo from Git to Scion. Scion is a source control system that moves repository operations to the server side and uses content-addressed storage and ...