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: 64.3%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 317 | 5.2% |
| Cursor Agent | Anysphere | 200 | 3.3% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
68e56b0edocs: Prisma 7 bug reports belong in this repository (#30297)Claude Code36e4067ddocs: Prisma 7 is supported for eighteen months after 8.0.0 final (#30296)Claude Code74fc013fmigration plan and migration new no longer need contract.d.ts on disk; vitClaude Code14060ca7feat(codec-registration-completion): unify codec registration (TML-2357) (Cursor Agent57c00078fix(agents): correct test infra docs — suites are self-containedCursor Agent9b27e084feat(migration,cli): invariant-aware ref routing (M4) + self-edge support Cursor Agent
What was excluded
| Commits in window | 6,204 |
| Merge commits removed | −66 |
| CI / dependency bots removed | −48 |
| Considered | 6,090 |
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 prisma/orm