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: 17.1%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 72 | 4.6% |
| OpenAI Codex | OpenAI | 17 | 1.1% |
| GitHub Copilot | GitHub | 3 | 0.2% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
439945fdchore(pack): prune @mixmark-io/domino's vendored test suite on install (#2Claude Codec9fb444cchore(pack): exclude test files and fixtures from npm package (#2410)Claude Codec6f8c26bfix(trip): repair flight extraction — dropped font-black class emptied eveClaude Code65576221fix(adapters): surface empty results as EmptyResultError, not sentinel rowOpenAI Codexde2ef4cafix(qwen): anchor waitForAnswer to stop returning the previous answer (#19OpenAI Codex001abdf4fix(deepseek): throw TimeoutError on no-reply instead of a silent sentinelOpenAI Codex2883620bFeat : add Gitee adapters and docs (#845)GitHub Copilot9245bf45feat: add url field to 9 search adapters (67% -> 97% coverage) (#414)GitHub Copilot297fd15ffeat(tiktok): add video URL to search results (#404)GitHub Copilot
What was excluded
| Commits in window | 1,592 |
| Merge commits removed | −7 |
| CI / dependency bots removed | −21 |
| Considered | 1,564 |
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 jackwener/OpenCLI