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: 87.7%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 725 | 62.2% |
| Cursor Agent | Anysphere | 3 | 0.3% |
| GitHub Copilot | GitHub | 1 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
a64e9e98fix(firmware): keep the C6 console RX alive and ship USB onboarding (0.8.1Claude Code500cfe47feat(firmware): persistent on-node log and coredump-to-flash (#1878)Claude Codef7c2c658feat(firmware): add the 16MB flash profile the C6 fleet runs on (#1877)Claude Codee22a2471firmware/esp32-hello-world: ESP32-C6 target and ESP-IDF v6 build fixes (#5Cursor Agentcee414f3firmware/esp32-csi-node: IDF 6 build, HE CSI config, unicore DSP, provisioCursor Agentf853c745v2: pin Rust 1.89 and fix sensing-server UI path when run from v2 (#523)Cursor Agentc8e990c3Potential fix for pull request findingGitHub Copilot
What was excluded
| Commits in window | 1,335 |
| Merge commits removed | −136 |
| CI / dependency bots removed | −34 |
| Considered | 1,165 |
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 ruvnet/RuView