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: 24.3%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 8 | 5.6% |
| GitHub Copilot | GitHub | 8 | 5.6% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
4d8d420efix(s03): let Gate 2 own the workspace boundary instead of safe_pathClaude Code6f0aef5cci: 定时把 fork main 同步到上游 shareAI-lab/mainClaude Code90a04488docs: align snip_compact README guards with codeClaude Code644b0753Update agents/s11_autonomous_agents.pyGitHub Copilotea53008aUpdate agents/s11_autonomous_agents.pyGitHub Copilot73b11ce1Update agents/s07_task_system.pyGitHub Copilot
What was excluded
| Commits in window | 233 |
| Merge commits removed | −89 |
| CI / dependency bots removed | −0 |
| Considered | 144 |
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 shareAI-lab/learn-claude-code