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: 16.7%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 157 | 7.9% |
| GitHub Copilot | GitHub | 25 | 1.3% |
| Cursor Agent | Anysphere | 8 | 0.4% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
bb06e1e5Integration request from AIML API (#11758)Claude Code0a9749b1feat(auth): enable refresh auth cli (#11657)Claude Code47190431fix(local-inference): discover GGUF repos with non-standard filenames (#11Claude Code35711b86provider refactor: don't require a model config to create a provider (#995GitHub Copilotf2df168bFix frontend extension session state and tool routes (#8464)GitHub Copilotef72bb0cblog: Built-in Local Inference blogpost. (#8808)GitHub Copilota9060fd2docs: stop enumerating crates in AGENTS.md Structure (#11614)Cursor Agente43f2be9feat(providers): add PleumRouter declarative provider (#10479)Cursor Agent482c5700Use rmcp ContentBlock in goose-sdk UniFFI (#11210)Cursor Agent
What was excluded
| Commits in window | 2,255 |
| Merge commits removed | −1 |
| CI / dependency bots removed | −266 |
| Considered | 1,988 |
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 aaif-goose/goose