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: 9%. Bars are scaled to that peak, not to 100%.
Which agents
| Gemini CLI | 22 | 2.8% | |
| Claude Code | Anthropic | 1 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
3723b3fbOptimize Numpy backend vectorized_map with zip (#23430)Gemini CLI37e91d59Fix calibration memory, AWQ staging, and sampling reproducibility (#23514)Gemini CLI3422977aBatch GPTQ calibration forwards and use Cholesky inverse-Hessian (#23481)Gemini CLI9501b953Fix nextafter returning inf instead of the largest finite value (#23417)Claude Code
What was excluded
| Commits in window | 802 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −13 |
| Considered | 789 |
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 keras-team/keras