8.9%

of 4,673 commits were committed by an AI agent — a floor, not an estimate

8.9% agent · top contributor 18.5%41 contributors

org-wide

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

417

agent commits

4,256

human commits

agent contributors

18.5%

largest contributor

Assisted or autonomous

415assisted

2autonomous

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: 13.9%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	390	8.3%
GitHub Copilot	GitHub	30	0.6%
Cursor Agent	Anysphere	3	0.1%

Verify it yourself

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

18a6ad12Widen snowplow-micro poll budget to de-flake event assertions (#77383)Claude Code
6964b63dRecord when the page draws on the second and later visits (#82467)Claude Code
781e6503Move security-center endpoints into enterprise security_center (#79351)Claude Code
f3685652docs: making semantic layer happen - org part (#82247)GitHub Copilot
7e3ab7a6Cleanup data warehouses nightly (#79849)GitHub Copilot
0361fce5Fix flaky remote-sync conflict-modal e2e test (#80396)GitHub Copilot
b098b29dRestyle the user-joined invite email with the modern card template (#75452Cursor Agent
3f26fa8eFix capitalization of "View schema" table action label (#76035)Cursor Agent
792592ffRestyle the new-device login email with the modern card template (#75246)Cursor Agent

What was excluded

Commits in window	4,698
Merge commits removed	−0
CI / dependency bots removed	−25
Considered	4,673

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 metabase/metabase

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