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: 13%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 3 | 1.5% |
| GitHub Copilot | GitHub | 3 | 1.5% |
| Devin | Cognition | 1 | 0.5% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
d56832d5Add rest method to HttpUserClaude Code350e011cfix: use total_rps in HTML report, add test for metric accuracyClaude Code261bace5Add missing event hook parameter documentationClaude Codef644db6adocs: remove Azure icon from Hosted load testing nav itemGitHub Copilot7b80e42adocs: replace hosted load testing screenshot with full test run resultsGitHub Copilot6b8dd572docs: add Azure Load Testing callout banner to hosted load testing pageGitHub Copilot3c324d8fFix master stopping test prematurely when a missing worker quitsDevin
What was excluded
| Commits in window | 326 |
| Merge commits removed | −95 |
| CI / dependency bots removed | −35 |
| Considered | 196 |
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 locustio/locust