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 skills add xonovex/platform --skill threejs-guidegit clone --depth 1 https://github.com/xonovex/platformWrote 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/xonovex/platform/threejs-guide)<a href="https://agentmods.dev/skills/xonovex/platform/threejs-guide"><img src="https://agentmods.dev/badge/skills/xonovex/platform/threejs-guide/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/xonovex/platform/threejs-guide"><img src="https://agentmods.dev/badge/skills/xonovex/platform/threejs-guide.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00091 | $0.00933 |
| Opus 5.5 | $0.00036 | $0.00373 |
| Sonnet 5.5 | $0.00018 | $0.00187 |
| Haiku 4.5 | $0.00009 | $0.00093 |
Grade A, and why
threejs-guide 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 1mo 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 — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Three.js Coding Guidelines
Vanilla Three.js for scene setup, rendering, meshes, materials, lights, animation, interaction, and effects.
Essentials
- Scene structure - Organize Object3D hierarchy; use Groups for logical organization, see references/scene-fundamentals.md
- Render loop - Frame-rate independence with
clock.getDelta(), see references/scene-fundamentals.md - Disposal - Dispose geometries, materials, textures to prevent memory leaks, see references/scene-fundamentals.md
- Pixel ratio - Cap at 2 with
Math.min(devicePixelRatio, 2), see references/scene-fundamentals.md - Color space -
NoColorSpacefor data textures (normal/roughness/metalness), not sRGB, see references/textures.md - Shadows - Enable on renderer, light, mesh; keep frustum tight, see references/lighting-shadows.md
Core Topics
- Read references/scene-fundamentals.md - Scene, Renderer, Object3D, cleanup, render loop
- Read references/geometry.md - Shapes, BufferGeometry, custom geometry, instancing
- Read references/cameras-controls.md - Cameras, OrbitControls, FlyControls, viewport
- Read references/materials.md - PBR materials, ShaderMaterial, properties
- Read references/textures.md - Loading, UV mapping, render targets, environment
- Read references/lighting-shadows.md - Lights, shadows, IBL, light probes
- Read references/animation.md - Keyframes, skeletal, morph targets, AnimationMixer
- Read references/interaction.md - Raycasting, selection, drag, coordinate conversion
- Read references/loaders.md - GLTF, FBX, textures, HDR, compression
- Read references/shaders.md - GLSL shaders, uniforms, varyings
- Read references/postprocessing.md - Bloom, DOF, SSAO, custom effects
- Read references/performance.md - InstancedMesh, LOD, culling, batching, profiling
- Read references/patterns.md - Architecture patterns, asset management, state machines
- Read references/math.md - Vector3, Matrix4, Quaternion, Box3, curves, MathUtils
- Read references/node-materials.md - TSL (Three Shading Language), node-based materials
- Read references/physics-vr.md - Physics engines (Rapier, Cannon), WebXR (VR/AR)
- Read references/webgpu.md - WebGPU renderer, compute shaders, modern GPU
What ships with it
21 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.
- eval-queries.json 4.9 KB
- evals.json 2.5 KB
- moon.yml 166 B
- references/animation.md 1.1 KB
- references/cameras-controls.md 1.2 KB
- references/geometry.md 1.0 KB
- references/interaction.md 1.0 KB
- references/lighting-shadows.md 1.2 KB
- references/loaders.md 1.1 KB
- references/materials.md 991 B
- references/math.md 1.0 KB
- references/node-materials.md 1.2 KB
- references/patterns.md 1.0 KB
- references/performance.md 961 B
- references/physics-vr.md 1.5 KB
- references/postprocessing.md 939 B
- references/scene-fundamentals.md 1.1 KB
- references/shaders.md 1.1 KB
- references/textures.md 877 B
- references/webgpu.md 1.3 KB
- SOURCES.md 529 B
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.
- 1mo ago First seen · 45 lines · 91 tokens per session scan A 3bc7aa610982
threejs-guide is a skill published in the GitHub repository xonovex/platform (6 stars, last pushed 5d ago), licensed MIT. It adds 91 tokens to every session and 933 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-09-08.
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