18.9%

of 1,061 commits were committed by an AI agent — a floor, not an estimate

18.9% agent · top contributor 26.9%38 contributors

org-wide

Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.

201

agent commits

860

human commits

agent contributors

26.9%

largest contributor

Assisted or autonomous

200assisted

1autonomous

Assisted — a developer’s identity authored the commit and the agent added itself as co-author. The agent ran git commit during a working session, with a person there. Autonomous — a bot identity is the author, no human in the loop. Across the whole index, 93.7% of agent commits are assisted.

Agent share by month

Feb26

Mar26

Apr26

May26

Jun26

Jul26

Aug26

Sep26

Peak month: 34.5%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	131	12.3%
Gemini CLI	Google	61	5.7%
GitHub Copilot	GitHub	25	2.4%
Cursor Agent	Anysphere	7	0.7%

Verify it yourself

Sample commits that matched. Every one links to GitHub — check the trailers.

621b63dfdemo(Modal): make draggable demo closable on touch devices (#59146)Claude Code
35c3c6e7fix(Menu): keep horizontal submenu open while crossing hover path (#59088)Claude Code
c452c62adocs: clarify Typography editable onChange trigger description (#59021)Claude Code
e8f781a4feat(Listy): add virtual list component (#58724)Gemini CLI
2057cfd0docs(BorderBeam): update English documentation to clarify count prop … (#5Gemini CLI
672308bfchore(site): code style optimization (#58678)Gemini CLI
3f2b321bfix(site): exclude bot accounts from contributors (#58915)GitHub Copilot
c514396fdocs: add changelog 6.5.4 (#58904)GitHub Copilot
2f948096demo(BorderBeam): add Hover over demo (#58683)GitHub Copilot
3d41d86adocs: add Upload data version (#59051)Cursor Agent
bbee82b0docs: correct Tabs tabPosition API type (#59047)Cursor Agent
c9aa0cdbfix(Menu): prevent tooltip flash when collapsing while hovered (#58865)Cursor Agent

What was excluded

Commits in window	1,525
Merge commits removed	−213
CI / dependency bots removed	−251
Considered	1,061

Bots are excluded from the denominator entirely. Counting dependabot as “AI-written code” is the fastest way to produce a meaningless number.

How this was measured

Measured over February–August 2026, cloned directly. Detection is deterministic string matching against signatures agents write about themselves — no heuristics, no style analysis. Merge commits and CI bots are excluded from the denominator. The figure is a floor: squash merges strip trailers, so real usage is higher. Contributor counts are aggregate — no individual is named.

Run it yourself: npx qmmit-cli ant-design/ant-design

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