Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.
Assisted or autonomous
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
Peak month: 23%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 140 | 7% |
| GitHub Copilot | GitHub | 7 | 0.4% |
| Cursor Agent | Anysphere | 3 | 0.2% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
a932513a[MiniCPMV4_6] Update test_small_model_vision_generation_batch expected outClaude Codeefed2433[VibeVoice] Skip generate export tests (flaky) (#48396)Claude Codeba356d2bBump transformers-mlinter to 0.1.5 and clear the new findings (#48259)Claude Code463f684aPotential fix for code scanning alert no. 267: Artifact poisoning (#47949)GitHub Copiloteee480d5docs-fix: IMDb dataset link in sequence classification guide (#47062)GitHub Copilotfa6c8308DeepGEMM BF16 + mixed FP8/FP4 + MegaMoE + refactor (#45634)GitHub Copilotf93eb6dbAdd CohereCompass modeling (#47878)Cursor Agent9188b5e1Add new cohere2_moe model (#46115)Cursor Agentf1f34de0Sdpa for owlvit (#42136)Cursor Agent
What was excluded
| Commits in window | 2,009 |
| Merge commits removed | −1 |
| CI / dependency bots removed | −18 |
| Considered | 1,990 |
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