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trycua/cua ↗
30.8%
of 1,518 commits were committed by an AI agent — a floor, not an estimate
30.8% agent · top contributor 51.9%20 contributors
team

A small group is using agents. Adoption has spread beyond one person but is not project-wide.

468
agent commits
1,050
human commits
20
agent contributors
51.9%
largest contributor

Assisted or autonomous

468assisted
0autonomous

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

Jan26
Feb26
Mar26
Apr26
May26
Jun26
Jul26
Aug26
Sep26

Peak month: 100%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic45630%
GitHub CopilotGitHub120.8%
OpenAI CodexOpenAI40.3%
Cursor AgentAnysphere20.1%

Verify it yourself

Sample commits that matched. Every one links to GitHub — check the trailers.

  • 14dd8cfddocs(sandbox): drop the unreleased notice from the OSWorld on Fleet guide Claude Code
  • db8ba214feat(sandbox): OSWorld disks on Fleet via agent_type="osworld" + "Run OSWoClaude Code
  • 4bc38a79docs: align README with current product paths and tutorials (#3649)Claude Code
  • f3e1f8b3Fleet dynamic service exposure: allow PATCH on sandbox services (#7553)GitHub Copilot
  • 69ed1112feat(cyclops): require card or admin for CR creation (#6796)GitHub Copilot
  • 1532830dfix(cua-driver): hide policy-disabled MCP tools (#3132)GitHub Copilot
  • bec30867feat(cyclops-cs): add GitHub OIDC trust policies (#5249)OpenAI Codex
  • a2c130b6fix(cyclops-cs): classify canceled svc proxy requests separately (#5935)OpenAI Codex
  • 8d2ac5eefeat(python): add cua-cloud placeholder package (#2042)OpenAI Codex
  • 9c929313Clarify that click already glides the agent cursor overlay. (#3143)Cursor Agent
  • a375b3fffeat(lume): add additional virtio-blk data disksCursor Agent

What was excluded

Commits in window2,007
Merge commits removed−37
CI / dependency bots removed−452
Considered1,518

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 trycua/cua

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