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microsoft/playwright ↗
3.7%
of 1,472 commits were committed by an AI agent — a floor, not an estimate
3.7% agent · top contributor 60%9 contributors
team

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

55
agent commits
1,417
human commits
9
agent contributors
60%
largest contributor

Assisted or autonomous

44assisted
11autonomous

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

Feb26
Mar26
Apr26
May26
Jun26
Jul26
Aug26

Peak month: 12.1%. Bars are scaled to that peak, not to 100%.

Which agents

GitHub CopilotGitHub503.4%
Claude CodeAnthropic40.3%
Cursor AgentAnysphere10.1%

Verify it yourself

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

  • e51e5b5atest(connect): unblock hung launchServer teardown with SIGKILL fallback (#GitHub Copilot
  • 6846dc7dtest(mcp): de-flake annotate screencast session switch startup (#42195)GitHub Copilot
  • 8078b858test(firefox): fixme flaky codegen pierceFrames disambiguation on Intel maGitHub Copilot
  • 92dcf5d3fix(reporter): honor NO_COLOR in list/line/dot reporters (#40903)Claude Code
  • 0aec507afix(mcp): handle page crash event in Tab constructor (#40426)Claude Code
  • a3266a78fix(html): deduplicate tags when same tag appears in both describe and tesClaude Code
  • 2ca42d22fix(playwright): remove dead package.json export subpaths (#41362)Cursor Agent

What was excluded

Commits in window1,654
Merge commits removed−0
CI / dependency bots removed−182
Considered1,472

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 microsoft/playwright

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