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: 33.3%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 7 | 0.8% |
| Gemini CLI | 5 | 0.6% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
a2a9f67ctest(nano): make LoRA tests deterministic (#3459)Claude Code0738581ffeat(nano): support LoRA finetuning of the Qwen3 LLM (#3456)Claude Code036ed693fix(trainer): avoid KeyError when a checkpoint is saved at an unvalidated Claude Code33b04031fix: disable duplicate dynamic silence logic in DynamicStreamingVAD (#3240Gemini CLIa3fb72e9feat(runtime): add sentence-level timestamps to WebSocket 2pass server (#2Gemini CLI4f343aa2fix(qwen3): stop masking dependency ImportErrors (#2860)Gemini CLI
What was excluded
| Commits in window | 1,084 |
| Merge commits removed | −180 |
| CI / dependency bots removed | −0 |
| Considered | 904 |
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 modelscope/FunASR