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: 6.6%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 123 | 2.4% |
| GitHub Copilot | GitHub | 37 | 0.7% |
| Cursor Agent | Anysphere | 21 | 0.4% |
| Devin | Cognition | 1 | 0% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
4e52a36eAllow opting into fork+exec task processes via execute_tasks_new_python_inClaude Code2bb32e37Stop swallowing unexpected keyring errors when saving airflowctl credentiaClaude Code1685bd6fRun short CI bookkeeping jobs on ubuntu-slim runners (#72852)Claude Coded0577848Fix DeadlockImminentError when a connection is resolved inside an async taGitHub Copilotf558ff13Stop discarding a MeterProvider configured via OTEL_CONFIG_FILE (#71529)GitHub Copilotf0c13dc5Fix task callbacks being skipped when `TriggerDagRunOperator` gets a 404 (GitHub Copilotb3b62fa8Add unit tests for common AI provider exceptions (#72082)Cursor Agent5dcee049Add warning for HttpOperator deferrable with non-idempotent methods (#6974Cursor Agentc4e6ed36Add deferrable mode to Databricks SQL warehouse operators (#71752)Cursor Agentb21e4299Migrate Airbyte provider to `airbyte-api` library 1.0 and `httpx` (#68882)Devin
What was excluded
| Commits in window | 5,477 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −357 |
| Considered | 5,120 |
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 apache/airflow