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: 35.4%. Bars are scaled to that peak, not to 100%.
Which agents
| GitHub Copilot | GitHub | 369 | 25.3% |
| Claude Code | Anthropic | 2 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
70e7adc5[main] Backport #37708 regression coverage (conflict fallback) (#38466)GitHub Copilota7c7f4a7Fix UI test compilation after CollectionView sharding (#38491)GitHub Copilot39b187a5[main] [Android] Fix Keyboard="Numeric" Entry no longer accepts OS-locale GitHub Copilotc432b71a[iOS] ScrollView: Clamp ScrollTo requests against AdjustedContentInset (#3Claude Code5f369871[Android] SafeArea: Apply insets to views attached during IME animations (Claude Code
What was excluded
| Commits in window | 1,521 |
| Merge commits removed | −34 |
| CI / dependency bots removed | −26 |
| Considered | 1,461 |
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 dotnet/maui