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: 5.7%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 111 | 2.7% |
| Cursor Agent | Anysphere | 3 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
0eac75befix(server): stop an expired application lease from permanently killing a Claude Code92442e74fix(server): reject pending Codex app-server requests on dispose (#4283)Claude Codefa1f01ebfeat(app): add fullscreen viewer for Mermaid diagrams on web (#4107)Claude Coded0e1edcafix(server): show the right thinking options for each Cursor model (#4180)Cursor Agent2347242cfix(usage): read Cursor plan usage from cursor-agent auth.json (#3486)Cursor Agent3786cf35Wait for Cursor ACP slash commands before listing. (#1099)Cursor Agent
What was excluded
| Commits in window | 4,581 |
| Merge commits removed | −216 |
| CI / dependency bots removed | −238 |
| Considered | 4,127 |
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 getpaseo/paseo