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52%
of 538 commits were committed by an AI agent — a floor, not an estimate
52% agent · top contributor 43.2%15 contributors
org-wide

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

280
agent commits
258
human commits
15
agent contributors
43.2%
largest contributor

Assisted or autonomous

272assisted
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

Peak month: 92.5%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic22341.4%
Cursor AgentAnysphere6912.8%
GitHub CopilotGitHub10.2%

Verify it yourself

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

  • c3befad2test: pin the accepted CDP drift in net_stubbing.cy.ts when the proxy is dClaude Code
  • a9ad36f4chore: deliver a network error requested from a cy.intercept response handClaude Code
  • a84ae627chore: enable CDP Fetch on auto-attached iframe sessions when the proxy isClaude Code
  • e51ac784feat: add the cypress tap CLI for driving a running Cypress session (#3454Cursor Agent
  • 13461c5fchore: disable Chrome's HTTPS-Upgrades feature (#34549)Cursor Agent
  • 50b54266test(server): skip the proxy performance suite while its fixture host throCursor Agent
  • 99bec899fix: namespace Angular CT temp tsconfig by projectRoot hash (#33635)GitHub Copilot

What was excluded

Commits in window693
Merge commits removed−0
CI / dependency bots removed−155
Considered538

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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