← the index
playcanvas/engine ↗
22.8%
of 782 commits were committed by an AI agent — a floor, not an estimate
22.8% agent · top contributor 56.7%6 contributors
team

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

178
agent commits
604
human commits
6
agent contributors
56.7%
largest contributor

Assisted or autonomous

178assisted
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

Feb26
Mar26
Apr26
May26
Jun26
Jul26
Aug26
Sep26

Peak month: 38.1%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic14518.5%
Cursor AgentAnysphere253.2%
GitHub CopilotGitHub141.8%

Verify it yourself

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

  • c43c09ffPublish the scene environment textures under their own uniforms (#9364)Claude Code
  • f414d25aFix StandardMaterial shader invalidation for refraction thresholds (#9363)Claude Code
  • 39739091Fix StandardMaterial shader invalidation for environment textures and 0/1 Claude Code
  • 10e5cb4brefactor(scrollbar): tighten ScrollbarComponent internals (#8694)Cursor Agent
  • 5fadb062refactor(scrollbar): align ScrollbarComponent with CameraComponent architeCursor Agent
  • 8993d0ebdocs: Fix executeCallback JSDoc type in gsplat-resolve-sh (#8682)Cursor Agent
  • 90339e4bFix crash when unloading sog assets still referenced by the unified world GitHub Copilot
  • f143ab7aSupport for exporting aoMaps and the second UV channels (#8728)GitHub Copilot
  • c7612f6bfeat: WebGPU XR device loss, devicelost events, and graphics binding typinGitHub Copilot

What was excluded

Commits in window863
Merge commits removed−1
CI / dependency bots removed−80
Considered782

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 playcanvas/engine

Scan another repository

Try