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: 17.4%. Bars are scaled to that peak, not to 100%.
Which agents
| Cursor Agent | Anysphere | 23 | 9.1% |
| Claude Code | Anthropic | 2 | 0.8% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
ce7b2b83fix(detectors/ngrok): broaden valid bearer tokens matching (#5152)Cursor Agent080c22fb[INT-942] Add HumioAPIToken detector (#5258)Cursor Agent8c3e7badAdd SOURCE_TYPE_AWS_SECRETS_MANAGER source type (#5234)Cursor Agent23bc406b[Feature] Added SonarQube Cloud "Scoped Organization Token" Detector (#473Claude Code3a022f9dAutomate corpora testing in CI (#4927)Claude Code
What was excluded
| Commits in window | 265 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −13 |
| Considered | 252 |
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 trufflesecurity/trufflehog