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: 4.3%. Bars are scaled to that peak, not to 100%.
Which agents
| GitHub Copilot | GitHub | 7 | 0.6% |
| Claude Code | Anthropic | 2 | 0.2% |
| OpenAI Codex | OpenAI | 2 | 0.2% |
| Cursor Agent | Anysphere | 1 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
c7f59a4dPotential fix for code scanning alert no. 7: Checkout of untrusted code inGitHub Copilotc1d2e221Potential fix for code scanning alert no. 3: Workflow does not contain perGitHub Copilot49ca883dPotential fix for code scanning alert no. 8: Incorrect conversion between GitHub Copilot16134c5efix(purge): resolve on-disk casing so projects appear once (#1416)Claude Code59a87214refactor(update): drop redundant resolve_current_mole_path wrapperClaude Code2fb9f077perf: optimize status, analyze, and cleanup scans (#840)OpenAI Codex2adb1f08Feat/generic orphan service detection (#838)OpenAI Codexc994aacffix: add operation logging to stub container cleanup and tighten CI rm guaCursor Agent
What was excluded
| Commits in window | 1,565 |
| Merge commits removed | −99 |
| CI / dependency bots removed | −238 |
| Considered | 1,228 |
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 tw93/Mole