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: 12.9%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 456 | 4.2% |
| Cursor Agent | Anysphere | 44 | 0.4% |
| GitHub Copilot | GitHub | 3 | 0% |
| OpenAI Codex | OpenAI | 2 | 0% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
42740d0dfix(mcp-stdio-core): drop unused handler param and share child-spawn setupClaude Codeb8b58f24docs(evidence): record QA for issue-template version bumpClaude Codee243389cdocs(issue-template): update stale OpenCode version placeholder (fixes #64Claude Codec00f212bbuild(omo-senpi): regenerate the extension bundlesCursor Agentb3f41715test(memory-core): end lock-holder fixtures on parent stdin EOF and await Cursor Agentdba9f4befix(senpi-task): apply the provider id transform in the category gatesCursor Agent39a3e39bUpdate docs/configurations.mdGitHub Copilot44a16046Update src/config/schema/experimental.tsGitHub Copilot6d5d250fUpdate src/hooks/write-existing-file-guard/index.test.tsGitHub Copilot37c7231atest: isolate connected providers cache test setupOpenAI Codex0dee4377feat(dispatch): wire marketplace plugin commands into slash command dispatOpenAI Codex
What was excluded
| Commits in window | 14,970 |
| Merge commits removed | −3,634 |
| CI / dependency bots removed | −491 |
| Considered | 10,845 |
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 code-yeongyu/oh-my-openagent