A small group is using agents. Adoption has spread beyond one person but is not project-wide.
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: 67.9%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 1374 | 43.1% |
| GitHub Copilot | GitHub | 25 | 0.8% |
| Cursor Agent | Anysphere | 2 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
9546c20cfix(pipeline): keep tokens out of the stall fence message, and tell the trClaude Codedbca60cafix(pipeline): let the enqueue-stall fence spare the holders it was raisedClaude Code70a0761afix(pipeline): re-check the stalled enqueue set inside the lock that fenceClaude Code42b818acfix: guard Faiss tests with pytest.importorskip and add offline markerGitHub Copilotbac0ed30Fix pre-commit ruff-format CI failures in Milvus test file (#11)GitHub Copilot634b43d4Remove dead code: Delete unused _create_vector_index_fallback methodGitHub Copilotec41aa48feature: add full-service comparison artifactsCursor Agentf405bc36test: add controlled benchmark for entity extraction stabilityCursor Agent
What was excluded
| Commits in window | 4,481 |
| Merge commits removed | −1,150 |
| CI / dependency bots removed | −143 |
| Considered | 3,188 |
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 HKUDS/LightRAG