5.6%

of 2,101 commits were committed by an AI agent — a floor, not an estimate

5.6% agent · top contributor 16.1%57 contributors

org-wide

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

118

agent commits

1,983

human commits

agent contributors

16.1%

largest contributor

Assisted or autonomous

117assisted

1autonomous

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: 9.7%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	110	5.2%
GitHub Copilot	GitHub	7	0.3%
Cursor Agent	Anysphere	4	0.2%

Verify it yourself

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

cc269e76Detect nested rope_parameters without relying on layer_types (#48798)Claude Code
3f162ca5Pin utf-8 in test_can_init_all_missing_weights source read (Windows non-UTClaude Code
39f81b04Add integration tests for MuseGlimmerAssistantModel (#48796)Claude Code
463f684aPotential fix for code scanning alert no. 267: Artifact poisoning (#47949)GitHub Copilot
eee480d5docs-fix: IMDb dataset link in sequence classification guide (#47062)GitHub Copilot
fa6c8308DeepGEMM BF16 + mixed FP8/FP4 + MegaMoE + refactor (#45634)GitHub Copilot
86a6c97cPass kwargs to the Mamba2 mixer in Nemotron-H, Falcon-H1 and Mamba2 (#4849Cursor Agent
f93eb6dbAdd CohereCompass modeling (#47878)Cursor Agent
9188b5e1Add new cohere2_moe model (#46115)Cursor Agent

What was excluded

Commits in window	2,128
Merge commits removed	−1
CI / dependency bots removed	−26
Considered	2,101

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 huggingface/transformers

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