A small group is using agents. Adoption has spread beyond one person but is not project-wide.
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: 7.7%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 18 | 1.5% |
| Cursor Agent | Anysphere | 4 | 0.3% |
| GitHub Copilot | GitHub | 3 | 0.2% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
06d76bdbcabana: imgui port (#38725)Claude Code4cfdcea1cabana: fix macOS build and --zmq bridge path (#38484)Claude Codeab43fd13ui: re-apply mici/AugmentedRoadView _calc_frame_matrix caching (#37948)Claude Code19459d2bfeat(lpa): at client + list profiles (#37337)Cursor Agentc6db0cd4WifiManager: fix all networks showing as connected when no active connectiCursor Agent489afc38four ui: edge shadows (#37239)Cursor Agentb6a0c89dui replay: record lossless to fix big replay diff (#37237)GitHub Copilot3661a014ui diff: compare frame hashes instead of temp files (#37154)GitHub Copilot03a4f7efui: add big (tizi) replay (#37198)GitHub Copilot
What was excluded
| Commits in window | 1,204 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −1 |
| Considered | 1,203 |
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 commaai/openpilot