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: 28.4%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 51 | 7.6% |
| GitHub Copilot | GitHub | 13 | 1.9% |
| Cursor Agent | Anysphere | 1 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
463b1209feat(platform): pass original image URL to Image component in 6 adapters (Claude Code9ecb587arefactor(provider): use LiteLLM as unified LLM requester backend (#2150)Claude Codebca710dbfeat(platform): show deployment outbound IPs on adapter config formsClaude Code3a82aa5fPotential fix for pull request finding 'Empty except'GitHub Copilot4e5a6ee7feat(models): add provider model scanning (#2106)GitHub Copilot49239e0efeat(ci): add i18n key consistency check for frontend locales (#2133)GitHub Copilotcadcf100Feat/rag plugin (#1995)Cursor Agent
What was excluded
| Commits in window | 710 |
| Merge commits removed | −35 |
| CI / dependency bots removed | −3 |
| Considered | 672 |
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 langbot-app/LangBot