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: 56.9%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 2074 | 34.5% |
| Cursor Agent | Anysphere | 278 | 4.6% |
| GitHub Copilot | GitHub | 8 | 0.1% |
| OpenAI Codex | OpenAI | 6 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
dc270518chore: Extract the duplicated desired-job naming in the scheduler job regiClaude Codecf0ef472fix(core): Mark retired node types as deprecated in their workflow-sdk typClaude Code903fe572fix(core): Execute multi-input nodes re-fired through a loop-back edge in Claude Code731ea42cfix(core): Fix Azure OpenAI classic and Foundry credential setup and execCursor Agent6912024afix(core): Gate observation on the model-facing window budget (no-changeloCursor Agent5fa620e7docs(editor): Refresh colour, shadow, and type style guide pages (no-changCursor Agente2afe166refactor(editor): Extract otel into a frontend module package (no-changeloGitHub Copilot4b807b7cfeat(core): Accept fan-in across input slots in @n8n/engine (no-changelog)GitHub Copilot7f0c5044refactor(editor): Repoint `roles.store` consumers to `@n8n/stores` and remGitHub Copilot4ea80680fix(editor): Attribute experiment telemetry in PostHog (#31137)OpenAI Codex06197a05feat(editor): Add instance ai prompt suggestions v2 (no-changelog) (#30647OpenAI Codex94113f44fix(editor): Remove resource center tooltip (no-changelog) (#30468)OpenAI Codex
What was excluded
| Commits in window | 6,176 |
| Merge commits removed | −26 |
| CI / dependency bots removed | −137 |
| Considered | 6,013 |
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 n8n-io/n8n