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: 59.1%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 345 | 31.3% |
| GitHub Copilot | GitHub | 25 | 2.3% |
| Cursor Agent | Anysphere | 4 | 0.4% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
534b70e0feat(frontend): report a DataFast `paywall_view` goal from onboarding (#14Claude Codebbf396a0feat(frontend): fire Google Ads conversions across the signup-to-paid jourClaude Code1c7e3ecbfeat(frontend): fire Google Ads conversions across the signup-to-paid jourClaude Code5f250c8ddocs(platform): sync GitBook documentation into dev (#14170)GitHub Copilotd286d491feat(platform): device code OAuth flow + Stripe Link wallet blocks (#14062GitHub Copilotc92a003ffeat(blocks): add DataForB2B provider (B2B data & enrichment) (#13383)GitHub Copilot5f250c8ddocs(platform): sync GitBook documentation into dev (#14170)Cursor Agent64f83238fix(frontend): use consistent marble avatar fallback across navbar and marCursor Agent89d6b88dfeat(frontend): Unmask static content for Sentry replays (#11219)Cursor Agent
What was excluded
| Commits in window | 1,179 |
| Merge commits removed | −50 |
| CI / dependency bots removed | −27 |
| Considered | 1,102 |
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 Significant-Gravitas/AutoGPT