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: 12%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 134 | 3.3% |
| GitHub Copilot | GitHub | 110 | 2.7% |
| Gemini CLI | 44 | 1.1% | |
| Cursor Agent | Anysphere | 7 | 0.2% |
| Devin | Cognition | 3 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
363753a0chore(i18n): sync translations with en-US (#41733)Claude Code0fc01feechore(i18n): sync translations with en-US (#41669)Claude Codeaa208d2dfix(web): give the favicon a single owner in root metadata (#41433)Claude Code3c80857efeat: add bearer auth to agent backend (#39622)GitHub Copilot71709f03feat: protect agent HOME with landlock (#39000)GitHub Copilot5e635c05chore: update deps (#38868)GitHub Copilotd9884efafix: sql injection (#38295)Gemini CLI8f74e176fix: remove redundant snippets permissions (#37921)Gemini CLIa554891bfix: snippet history detail includes input fields (#37797)Gemini CLIf785af3cfix(docker): use dynamic DNS resolution for all nginx upstreams (#39155)Cursor Agent1973a2e9feat(trace-aliyun): GenAI spans for LLM TTFT, agent ReAct, tools, and failCursor Agente2bc8f2cfix: keep colons in HTTP node form body values on migration (#38861)Cursor Agent39f06b6fchore(dify-agent): make local dev work with defaults out of the box (#4153Devin09a855dcchore: bump version to 1.17.0 (#41247)Devin84f9b653chore: bump cryptography, pypdf, h2 for CVE fixes (#40409)Devin
What was excluded
| Commits in window | 4,229 |
| Merge commits removed | −1 |
| CI / dependency bots removed | −221 |
| Considered | 4,007 |
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 langgenius/dify