Radar / AI coding tools / git-ai
git-ai: open-source Scion-style version control for AI agents
MIT-licensed server-centric Git replacement implementing Anthropic's Scion design (always-online clients, server-side history, compare-and-swap landing, changeset log) for hundreds of concurrent coding agents.
Why it matters
First public open-source implementation of Anthropic's Scion architecture, published two days after the Anthropic engineering post; 1,084 stars in 2 days.
What you could build with it
A platform team running hundreds of coding agents against a monorepo could deploy gitai to replace per-agent full clones, landing agent changes through compare-and-swap merges without a queue while blame and code search run server-side.
Does it hold up?
Too early to judge: v0.1.0 is the first public release with unit/e2e/fuzz tests, but the README lists known gaps (e.g. pack garbage collection) and interfaces may change before 1.0; no production deployments documented yet.
Built with git-ai
- Anthropic Replaces Git With In-House Scion as AI Coding Pushes Merge Volume Past 30,000 a Dayarticle · Oct 14, 2026 writeup of the Anthropic engineering post that git-ai implements: 2,500 to 30,000 merges/day, the Scion design, and the 200x infra reduction.
- Devs Rebuilt Anthropic's Git for Agents as Open Source - videoyoutube · Video tracing git-ai (feder-cr/git-ai) as the most-starred of a dozen open Scion rebuilds, including the author's own failed acceptance benchmark.
- Git Was Built for Offline Humans. Anthropic's Agents Broke Itmedium · Medium essay on the Scion design lessons for anyone running AI agents, with the merge-rate figures that motivated the rebuild.
Learn more
First spotted on github: source.
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