2.8%

of 683 commits were committed by an AI agent — a floor, not an estimate

2.8% agent · top contributor 10.5%17 contributors

org-wide

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

agent commits

664

human commits

agent contributors

10.5%

largest contributor

Assisted or autonomous

19assisted

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

May26

Jun26

Jul26

Aug26

Sep26

Peak month: 5.2%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	13	1.9%
Cursor Agent	Anysphere	5	0.7%
OpenAI Codex	OpenAI	1	0.1%
GitHub Copilot	GitHub	1	0.1%

Verify it yourself

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

a6624008feat(agent): group semantically related files for multi-file review (#808)Claude Code
9c5e90d0feat(providers): add AWS Bedrock as a built-in provider with native SigV4 Claude Code
144607f8feat(llm): task-scoped session affinity for prompt caching (#332)Claude Code
18f83498docs(cli): align --max-tools help text with min 50 clamp (#1077)Cursor Agent
48eb444aci(pages): add smoke test step to verify build output is servable (#741)Cursor Agent
e75601d2feat(examples/gitlab): add fail-open category/severity publication controlCursor Agent
389a6e3ffix(pages): scroll docs deep links on load (#413)OpenAI Codex
a53b16cffix(agent): stop leaking {{plan_guidance}} into MAIN_TASK prompts (#33)GitHub Copilot

What was excluded

Commits in window	697
Merge commits removed	−3
CI / dependency bots removed	−11
Considered	683

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 alibaba/open-code-review

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