72.6%

of 2,819 commits were committed by an AI agent — a floor, not an estimate

72.6% agent · top contributor 28.3%128 contributors

org-wide

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

2,046

agent commits

773

human commits

128

agent contributors

28.3%

largest contributor

Assisted or autonomous

2026assisted

20autonomous

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: 84.6%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	1509	53.5%
GitHub Copilot	GitHub	628	22.3%
Cursor Agent	Anysphere	19	0.7%
OpenAI Codex	OpenAI	1	0%

Verify it yourself

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

0a29db49Require explicit repository scope for GitHub App tokens (#25866)Claude Code
e3072980Post Vertex AI MaaS raw proxy requests to the `/endpoints/openapi` base URClaude Code
1c87b406Add `vertex_anthropic_betas` to control `anthropic-beta` forwarding for ClClaude Code
28fa6745Read uv version from `pyproject.toml` in `setup-python` (#25876)GitHub Copilot
d65be779Bump `rg` to 15.2.0 (#25875)GitHub Copilot
664cdec8Delete caches when a PR closes (#25871)GitHub Copilot
193a2364Ignore S3 directory markers in artifact listing (#23250)Cursor Agent
b4d50169[MLflow Assistant] Fix trace drawer closing when opening the Assistant proCursor Agent
4db07ecb[Custom View] Auto-select the first saved custom view on load (#25212)Cursor Agent
90535ef6feat(ui): display scorer description in tooltip for custom judges (#22043)OpenAI Codex

What was excluded

Commits in window	2,961
Merge commits removed	−0
CI / dependency bots removed	−142
Considered	2,819

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 mlflow/mlflow

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