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: 12.5%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 9 | 2.7% |
| GitHub Copilot | GitHub | 3 | 0.9% |
| Cursor Agent | Anysphere | 1 | 0.3% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
3c2c6b31[CuTe, SM90] Fix swapped backward MMA layout and use 2-stage hdim256 confiClaude Coded8dbfad5Fix `seqlen_k_loaded` treating a window bound of 0 as unbounded (sliding wClaude Codec68c592f[CuTe, SM100] Sparse MLA bwd: don't scatter dK/dV at -1 sentinel indices (Claude Code59f01d6eBump AITER submodule to commit 3b2e6f4 (#2540)GitHub Copilot3da76cdbBuild Fix: Update abi3 tag to cp310 and minimum python version to 3.10 (#GitHub Copilotb46c5875[AMD ROCm] Fix NaN in FMHA BWD when seq_q=0 (#2421)GitHub Copilotabaa8787[CUTE]Bump to Cutedsl (#2216)Cursor Agent
What was excluded
| Commits in window | 335 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −0 |
| Considered | 335 |
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 Dao-AILab/flash-attention