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cypress-io/cypress ↗
59%
of 751 commits were committed by an AI agent — a floor, not an estimate
59% agent · top contributor 49%17 contributors
org-wide

Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.

443
agent commits
308
human commits
17
agent contributors
49%
largest contributor

Assisted or autonomous

434assisted
9autonomous

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
Sep26

Peak month: 93.9%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic37449.8%
Cursor AgentAnysphere8210.9%
GitHub CopilotGitHub10.1%

Verify it yourself

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

  • a1b69653chore: add path-scoped Claude rules and correct drifted agent guidance (#3Claude Code
  • ce6f8fbfchore: convert three driver specs to TypeScript (#34854)Claude Code
  • 4d374e00test: convert three driver cypress specs to TypeScript (#34853)Claude Code
  • b8dc4e62chore: skip private packages in npm release dry-run script (#34804)Cursor Agent
  • d27572bcfix: serve tap GraphQL at a namespace-independent route (#34660)Cursor Agent
  • e51ac784feat: add the cypress tap CLI for driving a running Cypress session (#3454Cursor Agent
  • 99bec899fix: namespace Angular CT temp tsconfig by projectRoot hash (#33635)GitHub Copilot

What was excluded

Commits in window1,171
Merge commits removed−190
CI / dependency bots removed−230
Considered751

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 cypress-io/cypress

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