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: 1.7%. Bars are scaled to that peak, not to 100%.
Which agents
| GitHub Copilot | GitHub | 15 | 0.3% |
| Claude Code | Anthropic | 4 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
16760a55:art: Open bazaar resouce readme by `siyuan://bazaar/{type}/{name}/readme`GitHub Copilotb72a7027:construction_worker: Fix AUR fail. (#17992)GitHub Copilot24c9c5fd:art: Open bazaar resouce readme by `siyuan://bazaar/{type}/{name}/readme`GitHub Copilot3071ad22:lock: Use parameterized queries in putStat to prevent SQL injection (#176Claude Code890d2c5a:lock: Fix path traversal vulnerability in /repo/diff/ endpoint (#17657)Claude Codeb763d787:lock: Fix path traversal vulnerability in /export/temp/ endpoint (#17656)Claude Code
What was excluded
| Commits in window | 6,265 |
| Merge commits removed | −552 |
| CI / dependency bots removed | −10 |
| Considered | 5,703 |
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 siyuan-note/siyuan