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: 5.2%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 29 | 2.3% |
| GitHub Copilot | GitHub | 6 | 0.5% |
| Cursor Agent | Anysphere | 3 | 0.2% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
8fbe6252Add support for vLLM 0.28.0 (#7001)Claude Code5f9c4d91Forward model revision to the auto-loaded processing_class (#6978)Claude Codeea16eeaaDrop vLLM 0.19.0 support (#7002)Claude Code6a02207e[GRPO] Fix entropy bonus normalization inconsistency across loss types (#6GitHub Copilot2396dfe5[GRPO] Apply the completion mask elementwise in the luspo loss aggregationGitHub Copilot752c7ff3Fix prepare_deepspeed crash with cpu offload optimizer (#5916)GitHub Copilot3318cf88Raise when use_liger_kernel is combined with a PEFT adapter on lm_head (#5Cursor Agent25e294c4fix: prevent RuntimeError crash in activation offloading for non-contiguouCursor Agent0562c3fa[SFT] Fix high vRAM consumption during eval with liger kernel (#5069)Cursor Agent
What was excluded
| Commits in window | 1,286 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −23 |
| Considered | 1,263 |
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/trl