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: 50%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 33 | 10.5% |
| Cursor Agent | Anysphere | 2 | 0.6% |
| GitHub Copilot | GitHub | 1 | 0.3% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
a1fca7cefeat(analyzer): detect insecure deserialization (AST10, TT6, DS1–DS4) (#24Claude Code2b408ee6fix(lp3): remediation and docs name allowed-tools for SKILL.md (#316)Claude Code12bd99faDetect whitespace padding used to hide prompt-injection instructions (P9) Claude Code76f4beb5fix(analyzers): HIGH SC8 when skill ships __pycache__ or .pyc (#357)Cursor Agentc8e1626cfeat(provider): add anthropic_proxy provider for Vertex-style raw-predict Cursor Agent7f4a6957Fix Windows path separators and console encodingGitHub Copilot
What was excluded
| Commits in window | 459 |
| Merge commits removed | −141 |
| CI / dependency bots removed | −3 |
| Considered | 315 |
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 NVIDIA/SkillSpector