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: 100%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 19 | 12.7% |
| Cursor Agent | Anysphere | 3 | 2% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
65b7ffdefix(batch): apply timeout to each file, not the whole batch (#311)Claude Code090279adfix(content): tolerate null text blocks (#312)Claude Code3303fef6fix(batch): match file extensions case-insensitively (#310)Claude Code698e4f17Bump version to v1.3.1Cursor Agent4463e01bfeat: public media URL mapping, failure-modes doc (#207 #213 #272)Cursor Agentded2a7ccchore: bump version to 1.3.0Cursor Agent
What was excluded
| Commits in window | 200 |
| Merge commits removed | −50 |
| CI / dependency bots removed | −0 |
| Considered | 150 |
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 HKUDS/RAG-Anything