Today · event date October 13

Anthropic replaces Git; merge figures are self-reported

Anthropic says daily code merges rose more than tenfold in four months to over 30,000, and version control and review tools it built itself have replaced Git

Concept illustration in two side-by-side panels: in each, a person in black clothing wearing a lanyard badge stands at left looking up at a large wall screen, a wall sign at right shows a symbol above the lettering ANTHROPIC, and three laptops with grey lines on their screens sit on a long table in front. In the left panel the screen shows three red blocks above a label reading GIT; in the right panel the screen is split into a large grid of red blocks and a section with one red block over grey lines, above two labels reading SCION and ANTIQUE.

Why this matters to you: Once AI agents produce most code changes, the layer that may give out first is merging and review, not the model.

Anthropic's engineering post of October 13 says it merged about 2,500 changes a day on average in May, and "as of September, we merged over 30,000 per day" (Anthropic engineering blog, 2026-10-13). The post says nearly all of its users are now agents and scheduled jobs. Git's assumption that a developer works offline no longer holds, so the new system, Scion, is designed to be always connected. Anthropic built Scion and a review tool, Antique, itself.

The same day, Google let Gemini 4 Argon run unattended for 11 hours on ADK, Google's own open-source agent framework of about 200,000 lines. Google's blog says that of six proposals, two fixed core bottlenecks and shipped, and the other four were sent back in human review (Google developers blog, 2026-10-13).

Thorsten Ball, an engineer at Amp, which makes a coding agent, said the same day that internally the company has "No pull requests, no code review. We push to main." Agents read production logs, watch deployments and check their own work (Thorsten Ball, 2026-10-13). That is one employee's account.

Our reading: once agents become the main source of changes, the bottleneck may move from whether the model can write code to whether merging and review can keep up. That is our inference, and it is not settled. The biggest bottleneck Anthropic's post names is version control. Whether the review layer is a bottleneck, the post doesn't say. The three companies also handled it differently. Anthropic rebuilt its review tool, while Google's demo kept human review. At Amp, one engineer says the company dropped review internally. None of the three has published a defect rate.

Not proven yet: the merge count comes only from Anthropic, with no outside measurement How we checked →

Source and checks

This item ran in the brief of Oct 14, 2026, alongside 14 other items. How we checked it, the quote checks and what was still missing that day are on that issue's How we checked page.

Cite this item

SecondSource (2026). "Anthropic replaces Git; merge figures are self-reported." https://secondsource.io/en/news/2026-10-14-1/. Accessed access date.