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: 70.6%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 996 | 45.4% |
| Cursor Agent | Anysphere | 14 | 0.6% |
| Devin | Cognition | 14 | 0.6% |
| GitHub Copilot | GitHub | 1 | 0% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
876c8876fix(core): normalize a missing toolkit auth field group instead of throwinClaude Codea5f52aceperf(cli): list connected accounts once per executeClaude Code0a1464d5perf(cli): move the compiler and tokenizer out of the executableClaude Codeaacbc97adocs(claude-code-plugin): add page for Claude Code plugin install pathCursor Agent4fda636achore(cli): migrate binary release tags and docs (#2719)Cursor Agent2648fcaafeat(cli): add logs commands for triggers and tools (#2742)Cursor Agentda704439docs(proxy-execute): note cross-domain requests are not allowedDevinf17f5b6bdocs(proxy-execute): address review feedbackDevin2518d5c2chore(gitleaks): ignore placeholder curl example in proxy-execute docsDevina6bd593eUpdate docs/content/docs/managing-multiple-connected-accounts.mdxGitHub Copilot
What was excluded
| Commits in window | 3,100 |
| Merge commits removed | −754 |
| CI / dependency bots removed | −152 |
| Considered | 2,194 |
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 ComposioHQ/composio