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: 3.4%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 59 | 1% |
| GitHub Copilot | GitHub | 9 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
2b9b5ee1fix(pptx): duplicated notes keep their own pictures and hyperlinksClaude Code96253d59fix(pptx): speaker notes get a notes master to inherit fromClaude Code6cbf7843fix(cli): decode piped stdin as UTF-8 without mutating the consoleClaude Code74e18b36fix(preview): deduplicate heading numbers when text already contains themGitHub Copilot9e5e7c85feat(preview): convert EMF/WMF to PNG for browser renderingGitHub Copilotf6b0af5cfeat(word-preview): add OLE object preview and heading auto-numberingGitHub Copilot
What was excluded
| Commits in window | 6,123 |
| Merge commits removed | −109 |
| CI / dependency bots removed | −0 |
| Considered | 6,014 |
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 iOfficeAI/OfficeCLI