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: 33.3%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 5 | 3.2% |
| GitHub Copilot | GitHub | 4 | 2.5% |
| Cursor Agent | Anysphere | 1 | 0.6% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
7e26a579feat(ssh): option to reopen duplicated/restored tabs in the last working dClaude Code9cd1697ffeat(terminal): add insert-new-line hotkey (#11346)Claude Code8d89013eFix Windows-only plugin install failures via broken postinstall/prepare scClaude Code2af22b99Fix PowerShell 7 (pwsh) detection for Microsoft Store/MSIX installs (#1165GitHub Copilotcdae0b6eFix WSL sessions not starting in home directory on newer Windows builds (#GitHub Copilotb82ac4c9Make macOS build fail if code signing fails (#11255)GitHub Copilotea801300Flash taskbar/dock icon when the terminal bell rings (#11651)Cursor Agent
What was excluded
| Commits in window | 170 |
| Merge commits removed | −4 |
| CI / dependency bots removed | −9 |
| Considered | 157 |
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 Eugeny/tabby