One person is driving this. The headline number reflects a single contributor's workflow, not a project-wide shift.
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: 93.8%. Bars are scaled to that peak, not to 100%.
Which agents
| Cursor Agent | Anysphere | 39 | 26.7% |
| Claude Code | Anthropic | 1 | 0.7% |
| Devin | Cognition | 1 | 0.7% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
06d6028bdocs(readme): remove sponsor table and tighten logo-to-text spacingCursor Agent9d14796edocs(readme): vertically center Emil sponsor text and link name to GitHub.Cursor Agentf2c6079cRestore animations.dev logo beside Emil sponsor text in README.Cursor Agentfb534bc9fix: add .claude-plugin/ manifest for VS Code marketplace supportClaude Code7f029f26Add techmedic5 and bytewerk-dev to Current SponsorsDevin
What was excluded
| Commits in window | 154 |
| Merge commits removed | −8 |
| CI / dependency bots removed | −0 |
| Considered | 146 |
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 Leonxlnx/taste-skill