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 GuitarAlchemist/ga --skill three-best-practicesgit clone --depth 1 https://github.com/GuitarAlchemist/gaWrote 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/guitaralchemist/ga/three-best-practices)<a href="https://agentmods.dev/skills/guitaralchemist/ga/three-best-practices"><img src="https://agentmods.dev/badge/skills/guitaralchemist/ga/three-best-practices/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/guitaralchemist/ga/three-best-practices"><img src="https://agentmods.dev/badge/skills/guitaralchemist/ga/three-best-practices.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 | $0.00058 | $0.03557 |
| Opus 5.5 | $0.00023 | $0.01423 |
| Sonnet 5.5 | $0.00012 | $0.00711 |
| Haiku 4.5 | $0.00006 | $0.00356 |
Grade A, and why
three-best-practices 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.
This is a copy
100% identical to three-best-practices — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 335 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Three.js Best Practices
Comprehensive performance optimization guide for Three.js applications. Contains 120+ rules across 18 categories, prioritized by impact.
Sources & Credits
This skill compiles best practices from multiple authoritative sources:
- Official guidelines from Three.js
llmsbranch maintained by mrdoob- 100 Three.js Tips by Utsubo - Excellent comprehensive guide covering WebGPU, asset optimization, and performance tips
When to Apply
Reference these guidelines when:
- Setting up a new Three.js project
- Writing or reviewing Three.js code
- Optimizing performance or fixing memory leaks
- Working with custom shaders (GLSL or TSL)
- Implementing WebGPU features
- Building VR/AR experiences with WebXR
- Integrating physics engines
- Optimizing for mobile devices
Rule Categories by Priority
| Priority | Category | Impact | Prefix |
|---|---|---|---|
| 0 | Modern Setup & Imports | FUNDAMENTAL | setup- |
| 1 | Memory Management & Dispose | CRITICAL | memory- |
| 2 | Render Loop Optimization | CRITICAL | render- |
| 3 | Draw Call Optimization | CRITICAL | drawcall- |
| 4 | Geometry & Buffer Management | HIGH | geometry- |
| 5 | Material & Texture Optimization | HIGH | material- |
| 6 | Asset Compression | HIGH | asset- |
| 7 | Lighting & Shadows | MEDIUM-HIGH | lighting- |
| 8 | Scene Graph Organization | MEDIUM | scene- |
| 9 | Shader Best Practices (GLSL) | MEDIUM | shader- |
| 10 | TSL (Three.js Shading Language) | MEDIUM | tsl- |
| 11 | WebGPU Renderer | MEDIUM | webgpu- |
| 12 | Loading & Assets | MEDIUM | loading- |
| 13 | Core Web Vitals | MEDIUM-HIGH | vitals- |
| 14 | Camera & Controls | LOW-MEDIUM | camera- |
| 15 | Animation System | MEDIUM | animation- |
| 16 | Physics Integration | MEDIUM | physics- |
| 17 | WebXR / VR / AR | MEDIUM | webxr- |
| 18 | Audio | LOW-MEDIUM | audio- |
| 19 | Post-Processing | MEDIUM | postpro- |
| 20 | Mobile Optimization | HIGH | mobile- |
| 21 | Production | HIGH | error-, migration- |
| 22 | Debug & DevTools | LOW | debug- |
What ships with it
28 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.
- rules/_sections.md 4.2 KB
- rules/animation-system.md 4.6 KB
- rules/asset-compression.md 2.4 KB
- rules/audio-spatial.md 4.4 KB
- rules/core-web-vitals.md 3.3 KB
- rules/debug-devtools.md 4.5 KB
- rules/draw-call-optimization.md 2.8 KB
- rules/error-handling-recovery.md 5.6 KB
- rules/geometry-instanced-mesh.md 3.1 KB
- rules/gltf-loading-optimization.md 4.7 KB
- rules/lighting-shadows-advanced.md 3.9 KB
- rules/memory-dispose-geometry.md 1.9 KB
- rules/migration-checklist.md 4.3 KB
- rules/mobile-optimization.md 5.1 KB
- rules/object-pooling.md 2.9 KB
- rules/physics-integration.md 4.7 KB
- rules/postprocessing-optimization.md 3.4 KB
- rules/raycasting-optimization.md 4.8 KB
- rules/render-delta-time.md 1.7 KB
- rules/setup-use-import-maps.md 1.5 KB
- rules/shader-mobile.md 3.0 KB
- rules/tsl-complete-reference.md 7.1 KB
- rules/tsl-compute-shaders.md 4.5 KB
- rules/tsl-material-slots.md 3.2 KB
- rules/tsl-post-processing.md 4.5 KB
- rules/tsl-why-use.md 2.4 KB
- rules/webgpu-renderer.md 3.1 KB
- rules/webxr-setup.md 5.4 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.
- 1mo ago First seen · 335 lines · 58 tokens per session scan A b19d75e0dc62
three-best-practices is a skill published in the GitHub repository GuitarAlchemist/ga (2 stars, last pushed yesterday), licensed MIT. It adds 58 tokens to every session and 3,557 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to three-best-practices, differing in 0 lines, and is treated as a copy.
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