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cypress-io/cypress ↗
56.1%
of 695 commits were committed by an AI agent — a floor, not an estimate
56.1% agent · top contributor 44.9%17 contributors
org-wide

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

390
agent commits
305
human commits
17
agent contributors
44.9%
largest contributor

Assisted or autonomous

382assisted
8autonomous

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: 92.7%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic32246.3%
Cursor AgentAnysphere8111.7%
GitHub CopilotGitHub10.1%

Verify it yourself

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

  • cd55bae5chore: replace static requires with imports in errors, launcher, socket (#Claude Code
  • e05fbe45chore: remove unused node-register from @packages/web-config (#34767)Claude Code
  • c56b47f2refactor: replace runtime requires with imports in electron, runner, reporClaude Code
  • 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
  • 13461c5fchore: disable Chrome's HTTPS-Upgrades feature (#34549)Cursor Agent
  • 99bec899fix: namespace Angular CT temp tsconfig by projectRoot hash (#33635)GitHub Copilot

What was excluded

Commits in window1,112
Merge commits removed−190
CI / dependency bots removed−227
Considered695

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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