Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/notque/vexjoy-agent/threejs-buildernpx skills add notque/vexjoy-agent --skill threejs-buildergit clone --depth 1 https://github.com/notque/vexjoy-agentWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/notque/vexjoy-agent/threejs-builder)<a href="https://agentmods.dev/skills/notque/vexjoy-agent/threejs-builder"><img src="https://agentmods.dev/badge/skills/notque/vexjoy-agent/threejs-builder.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00023 | $0.02864 |
| Opus 5 | $0.00012 | $0.01432 |
| Sonnet 5 | $0.00005 | $0.00573 |
| Haiku 4.5 | $0.00002 | $0.00286 |
Grade A, and why
threejs-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Three.js Builder Skill
Overview
This skill builds complete Three.js web applications using a Phased Construction pattern with four phases: Design, Build, Animate, Polish. It supports three paradigms — imperative Three.js, React Three Fiber (R3F), and WebGPU — detected automatically from project context. Only the relevant paradigm's reference is loaded.
Scope: Use for 3D web apps, interactive scenes, WebGL/WebGPU visualizations, R3F declarative 3D, and product viewers. For game engines, 3D model creation, VR/AR experiences, or CAD workflows, use a more specialized skill.
Reference Loading Table
| Signal | Load These Files | Why |
|---|---|---|
@react-three/fiber, r3f, drei, useFrame, <Canvas>, <mesh>, React project with 3D |
react-three-fiber.md |
React Three Fiber |
WebGPURenderer, TSL, tsl, compute shader, wgsl, node material, WebGPU mentioned |
webgpu.md |
WebGPU |
Standalone HTML, CDN imports, new THREE.Scene(), no React, vanilla JS/TS |
advanced-topics.md (load as needed)` |
Imperative |
Game project: EventBus, GameState, player controller, enemies, scoring, multiple game systems |
game-patterns.md (alongside paradigm reference)` |
Game architecture |
GLTF/GLB model loading, .glb files, animated characters, skeletal rigs, model import |
gltf-loading.md (alongside paradigm reference)` |
GLTF loading |
references/build-recipes.md |
build-recipes.md |
Phase 2/3 build, error diagnosis |
references/advanced-topics.md |
advanced-topics.md |
Imperative paradigm |
references/react-three-fiber.md |
react-three-fiber.md |
R3F paradigm |
references/webgpu.md |
webgpu.md |
WebGPU paradigm |
references/visual-polish.md |
visual-polish.md |
Visual quality signal |
references/gltf-loading.md |
gltf-loading.md |
GLTF/GLB model loading signal |
references/game-patterns.md |
game-patterns.md |
Game project signal |
references/game-architecture.md |
game-architecture.md |
Game project signal |
references/shader-patterns.md |
shader-patterns.md |
Custom GLSL / visual effects |
references/performance-patterns.md |
performance-patterns.md |
Performance / many objects |
references/advanced-animation.md |
advanced-animation.md |
Animation systems / skeletal rigs |
What ships with it
11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/advanced-animation.md 12 KB
- references/advanced-topics.md 11 KB
- references/build-recipes.md 7.3 KB
- references/game-architecture.md 10 KB
- references/game-patterns.md 13 KB
- references/gltf-loading.md 8.6 KB
- references/performance-patterns.md 12 KB
- references/react-three-fiber.md 18 KB
- references/shader-patterns.md 15 KB
- references/visual-polish.md 16 KB
- references/webgpu.md 20 KB
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 208 lines · 23 tokens per session scan A 2e62db559c82
threejs-builder is a skill published in the GitHub repository notque/vexjoy-agent (419 stars, last pushed yesterday), licensed MIT. It adds 23 tokens to every session and 2,864 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
Other skills, from other repositories
component-system
Use when building reusable node components — composition patterns, component communication, and interface design.
godot-ui
Use when building user interfaces — Control nodes, themes, anchors, containers, and layout patterns.
inventory-system
Use when building inventory systems — Resource-based items, slot management, stacking, and UI binding.
dialogue-system
Use when implementing dialogue — data structures for branching dialogue, conditions, and UI presentation.
web-3d-react-three-fiber
React Three Fiber (R3F) 3D rendering — Canvas, meshes, materials, lights, cameras, animations, events, physics, post-processing, performance.
worker-visualizer
A real-time data/particle/simulation visualizer whose heavy compute runs in a Web Worker (off the main thread), optionally sharing memory with the UI via SharedArrayBuffer, and renders to a canvas at 60fps. Produced as a single self-contained index.html. Use when the brief asks for a "web worker", "simulation"…