Dataset: 2026-09-18-v3.0
Ruleset: b2e8889c66f7
Scanned: 2026-09-16
Window: February–September 15, 2026

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01Result

mrdoob/three.js ↗

mrdoob/three.js AI coding statistics: 11.4%

of 1,157 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

11.4% agent · top contributor 59.1%15 contributors

team

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

132

agent commits

1,025

other considered commits

15

agent contributors

59.1%

largest contributor

02Drivers

What shapes this result

Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.

Assisted or autonomous

132assisted

0autonomous

Assisted — a developer’s identity authored the commit and the agent added itself as co-author. Autonomous — a bot identity authored the commit without a human identity attached. Across the whole index, 96% of agent commits are assisted.

Agent share by month

Peak month: 17.3%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	129	11.1%
GitHub Copilot	GitHub	4	0.3%
Cursor Agent	Anysphere	2	0.2%

03Evidence

Inspect the matches

Public commit samples let you inspect the signatures behind the aggregate result.

Matched commit samples

5570931d on GitHubWebGPURenderer: Textures never removes dispose listeners (#34368)Claude Code
77411fe3 on GitHubWebGLRenderer: Only apply pixel ratio to the canvas in setViewport() and sClaude Code
55e1135d on GitHubPackage: Allow install scripts for puppeteer and fsevents.Claude Code
77053e2b on GitHubPMREMGenerator: Replace separable blur with spiral blur on both renderers GitHub Copilot
0d298629 on GitHubAdd `SSAONode` and `depthAwareBlur` (#33921)GitHub Copilot
3e3d7776 on GitHubMaterial: Fixed setValues() to honor Euler and Vector2 types. (#33476)GitHub Copilot
95507a65 on GitHubWebGLRenderer: Unbind PIXEL_PACK_BUFFER after async readback. (#34321)Cursor Agent
fef39719 on GitHubMaterialx upgrade (#33485)Cursor Agent

04Method

What entered the denominator

The result begins with commit history, removes merges and routine automation, and reports literal agent signatures as a lower bound.

Exclusion ledger

Commits in window	1,244
Merge commits removed	−0
CI / dependency bots removed	−87
Considered	1,157

Bots are excluded from the denominator entirely. Agent attribution requires a literal supported signature; no code-style inference is used.

05Provenance

Pinned to a source state

This observation names the repository state, release, and detector that produced it. Use these identifiers when reproducing or citing the result.

Dataset release: 2026-09-18-v3.0
Scan date: 2026-09-16
Ruleset: sha256:b2e8889c66f72c18a61839f0bf1a9f77b5481ba2def044dba33c797b2f2bdcae
Canonical repository: mrdoob/three.js
Default branch: dev
Resolved HEAD: eabc262db760c5e85bd890a6dc627ba14e70e8c3 ↗
Resolved: 2026-09-16
Measurement window: February–September 15, 2026

Download observation JSONDeterministic export · same values as this page

06Peer context

Position among comparable repositories

The cohort uses the same release and measurement window, then narrows to the repository’s ecosystem and removes low-activity observations.

CohortJS/TS · 376 eligible repositories · at least 100 considered commits2026-09-18-v3.0 · February–September 15, 2026 · 194 of 570 ecosystem repositories excluded

Agent-commit share position66th percentile

Midrank percentile; equal shares split the tied positions.

Repository: 11.4%
Cohort median: 5.4%
Share rank: 129 / 376

0th50th100th

Percentile = (repositories below + half of 1 tied repository) ÷ 376.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →GitHub Copilot commitsBrowse repositories with detected GitHub Copilot signatures →Cursor Agent commitsBrowse repositories with detected Cursor Agent signatures →GitHub AI commit analyzerInspect another repository with the same evidence model →

Reproduce this observation

Run the same detector locally.

Deterministic signature matching; no code-style inference. Squash merges can remove trailers, so this result remains a measured floor.

npx qmmit-cli mrdoob/three.js

Scan another repository

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