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: 53.8%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 184 | 23% |
| GitHub Copilot | GitHub | 10 | 1.2% |
| Cursor Agent | Anysphere | 2 | 0.2% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
1e1638c3fix(docker): build each platform natively instead of cross-compiling underClaude Codebb016906fix(hardware): recover BIOS UMA carveout on Linux APUs and drop legacy IntClaude Code0eb997adfix(hardware): stop mobile GPUs inheriting desktop specs (#919) (#922)Claude Codece071a4bInitial planGitHub Copilot7cdc5ff4Initial planGitHub Copilotcbb4fc4dAddress PR #177 review feedbackGitHub Copilota8a1a93ffeat: hardware profiles, MoE Tier-2 fixes, and estimate confidence (#969) Cursor Agent71df9efadata: community benchmark (apple-m1-max) (#896)Cursor Agent
What was excluded
| Commits in window | 1,189 |
| Merge commits removed | −260 |
| CI / dependency bots removed | −128 |
| Considered | 801 |
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 AlexsJones/llmfit