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: 7.6%. Bars are scaled to that peak, not to 100%.
Which agents
| Cursor Agent | Anysphere | 29 | 1.2% |
| Claude Code | Anthropic | 2 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
b6b247f0Use a map for email domain status notification subjectsCursor Agent45db4c38Add Resend partially_verified and partially_failed email domain statusesCursor Agentac75e044Restore custom rate limit messages on migrated policiesCursor Agent2fed7502Bounty single page & support multiple submissions (#3521)Claude Code05313c42Add program reward education and helper content (#3421)Claude Code
What was excluded
| Commits in window | 3,157 |
| Merge commits removed | −659 |
| CI / dependency bots removed | −0 |
| Considered | 2,498 |
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 dubinc/dub