51.8%

of 1,912 commits were committed by an AI agent — a floor, not an estimate

51.8% agent · top contributor 70.7%28 contributors

team

A small group is using agents. Adoption has spread beyond one person but is not project-wide.

991

agent commits

921

human commits

agent contributors

70.7%

largest contributor

Assisted or autonomous

991assisted

0autonomous

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

Apr26

May26

Jun26

Jul26

Aug26

Sep26

Peak month: 90.6%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	987	51.6%
Cursor Agent	Anysphere	4	0.2%
GitHub Copilot	GitHub	3	0.2%

Verify it yourself

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

25393b46test(worker): stop spinning the loop the awaited work needsClaude Code
e1127099fix(backend): identify the port holder by the marker header, not a body snClaude Code
f21ad9a2fix(crash): close the far end of a dead run's slice, and settle one at a tClaude Code
37aea507fix(setup): lengthen HF connectivity probe timeouts to 8sCursor Agent
9979f1a8fix(bootstrap): apply China PyPI mirror on repair uv syncCursor Agent
9d30774efeat(audiobook): synced lyrics playback (#1766)Cursor Agent
c0924f5efix(tts): torch.compile failures fall back to eager — generation never faiGitHub Copilot
853b9eeffix(dub): burn translated subtitles, fix subtitle save JSON error (#309) (GitHub Copilot
48ae4daefix(dub): re-dub honors transcript edits — fingerprints canonicalised, preGitHub Copilot

What was excluded

Commits in window	2,540
Merge commits removed	−613
CI / dependency bots removed	−15
Considered	1,912

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 debpalash/VoiceStudio

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