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: 38%. Bars are scaled to that peak, not to 100%.
Which agents
| GitHub Copilot | GitHub | 61 | 13.9% |
| Claude Code | Anthropic | 10 | 2.3% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
266fd1c7feat(icons): add `rotate-cw-clock` icon (#3979)GitHub Copilot6b474e16feat(icons): added 'nepali-rupee' icon (#4608)GitHub Copilotb998e289feat(icons): added `globe-code` icon (#3722)GitHub Copilot266fd1c7feat(icons): add `rotate-cw-clock` icon (#3979)Claude Codebdf795a8feat(lab): add `hand-gear` icon (#2327)Claude Code6d4501f4feat(icons): added peace-sign icon (#3001)Claude Code
What was excluded
| Commits in window | 492 |
| Merge commits removed | −15 |
| CI / dependency bots removed | −37 |
| Considered | 440 |
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 lucide-icons/lucide