A small group is using agents. Adoption has spread beyond one person but is not project-wide.
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: 6.5%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 6 | 1.4% |
| GitHub Copilot | GitHub | 2 | 0.5% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
df32b4d6Add an option to check for update without proxy (#10090)Claude Code64aad802Skip the TUN IPv6 route when the host has no global IPv6 address (#10080)Claude Code426d5d5aci: run the test job on pushes to master (#10054)Claude Coded1c9c0b5Update .NET 10 (#9239)GitHub Copilot584e5386Refactor node pre check (#8848)GitHub Copilot
What was excluded
| Commits in window | 451 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −16 |
| Considered | 435 |
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 2dust/v2rayN