← October 14, 2026 briefing

Anthropic reportedly moved its monorepo from Git to an in-house version control system, Scion, as AI coding raised change volume

Verified (fact)

According to a GeekNews summary, Anthropic built its own version control system, Scion, after AI coding turned source control, builds, and CI into bottlenecks. It moved its monorepo off Git within five months. Daily merges rose from about 2,500 on average in May 2026 to more than 30,000 in September. CI alone reportedly performs about 25 million checkouts a day. The collected material does not include an official source.

Why it matters (interpretation)

It shows that the extra changes produced by coding agents are already forcing companies to redesign existing development infrastructure such as Git and CI.

Confidence medium · official source pending

Sources

More about Anthropic