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: 8%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 22 | 3.6% |
| GitHub Copilot | GitHub | 1 | 0.2% |
| Other / generic agent | Various | 1 | 0.2% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
9cc0a19dEnforce aggregated real-time reports and round their counters under CNIL mClaude Code2d65aeabRender pie charts as perfectly circular with clean slice boundaries (#2490Claude Code6e5d4050Show the selected goal's conversions in bar, pie and evolution charts (#24Claude Codeb2d6a657fix orphaned tooltips in CoreHome widgets (#24731)GitHub Copilotf6f8d0ffTranslations update from Hosted Weblate (#24430)Other / generic agent
What was excluded
| Commits in window | 699 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −85 |
| Considered | 614 |
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 matomo-org/matomo