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: 7.5%. Bars are scaled to that peak, not to 100%.
Which agents
| GitHub Copilot | GitHub | 19 | 2.7% |
| Claude Code | Anthropic | 6 | 0.8% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
06f52c89feat(result): option to copy slow words list with filtering (@vrutant08) (GitHub Copilote113dff1refactor: convert the rest of test state to solid (@miodec) (#8261)GitHub Copilot476fe5e0refactor: solid live stats (@miodec) (#8248)GitHub Copilotfa5acc53refactor(generator): include commit spaces in generated words (@miodec, @LClaude Code9ab31b9ffix(quick-restart): quick restart warning firing for wrong events in long Claude Codeb40fb259chore: add Claude Code GitHub Workflow (@miodec) (#7617)Claude Code
What was excluded
| Commits in window | 759 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −49 |
| Considered | 710 |
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 monkeytypegame/monkeytype