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: 18%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 228 | 4% |
| Cursor Agent | Anysphere | 8 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
fc528113fix(webui): guard submitEdit against re-entry (destructive double-submit)Claude Code05ab4173fix(profiles): resolve @provider:model through the shared parser (#7183)Claude Coded13e9221Release batch B: Docker single-container UID fix + GLM-5.3 catalog (experiClaude Code4528279cfix: route overlapping custom_providers models by active endpoint (#7107)Cursor Agent3807c247Fix false streaming and live UI reset when switching sessions.Cursor Agent91976a8ffix(ui): re-sync reasoning chip on model change with provider contextCursor Agent
What was excluded
| Commits in window | 8,132 |
| Merge commits removed | −2,461 |
| CI / dependency bots removed | −0 |
| Considered | 5,671 |
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 nesquena/hermes-webui