45.7%

of 1,186 commits were committed by an AI agent — a floor, not an estimate

45.7% agent · top contributor 52%30 contributors

team

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

542

agent commits

644

human commits

agent contributors

52%

largest contributor

Assisted or autonomous

542assisted

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

Feb26

Mar26

Apr26

May26

Jun26

Jul26

Aug26

Sep26

Peak month: 91%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	403	34%
OpenAI Codex	OpenAI	154	13%
Devin	Cognition	4	0.3%
Cursor Agent	Anysphere	1	0.1%
GitHub Copilot	GitHub	1	0.1%

Verify it yourself

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

c4e6d3f0fix(chat-width): let the slider own gemini's luminous width variablesClaude Code
8b5a53affix(prompt): give the pin its own theme colours and keep chips out of the Claude Code
1be83141ux(prompt): pin from a row button and drop the right-click menuClaude Code
dff4aba3refactor(popup): separate page composition, settings and lifecycles (#1008OpenAI Codex
5c6a4ae1docs(plugins): clarify browser support for dynamic registration (#993)OpenAI Codex
18041a07test(popup): cover DeepSeek plugin-only mode (#991)OpenAI Codex
aba5eef7fix(ui): timeline level3 dot clippath and box-shadow conflict (#633)Devin
673c7964fix(ui): CtrlEnterSend bugs (#627)Devin
d30bd4e3fix(folder): support moving nested folders (#547)Devin
1aed7132fix(prevent-auto-scroll): keep reading position after generation settlesCursor Agent
d30bd4e3fix(folder): support moving nested folders (#547)GitHub Copilot

What was excluded

Commits in window	1,228
Merge commits removed	−14
CI / dependency bots removed	−28
Considered	1,186

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 Nagi-ovo/voyager

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