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Agent skill

Vantajs

by nirholas in nirholas/three.ws

A skill your agent uses when adding animated WebGL background effects with Vanta.js (setup, parameters, resizing, performance, integration in React/Next.js).

Apache-2.0Auto-check passedGame Development

Install Vantajs

skills CLI
$ npx skills add nirholas/three.ws --skill vantajs -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install nirholas/three.ws vantajs --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/nirholas/three.ws.git skills-src && mkdir -p .claude/skills && cp -r skills-src/third_party/designcode-agent-skills/agent-skills/web-design/vantajs .claude/skills/vantajs && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
vantajs
GitHub stars
226
Used in
1 other repo
Token cost
~506 tokens
SKILL.md length
195 words
Files
5
Skills in repo
165
Repo updated
First seen
Licence
Apache-2.0

At a glance

A skill your agent uses when adding animated WebGL background effects with Vanta.js (setup, parameters, resizing, performance, integration in React/Next.js).

  • Works in 2 steps: Minimal waves background → React cleanup pattern (concept)
  • Adding animated WebGL background effects with Vanta.js (setup
  • SKILL.md covers When to use, How it works, Key APIs/patterns and Common pitfalls, plus 2 more sections
  • Reaches cdnjs.cloudflare.com and cdn.jsdelivr.net

What it does

Vantajs is an agent skill from nirholas/three.ws. Use when adding animated WebGL background effects with Vanta.js (setup, parameters, resizing, performance, integration in React/Next.js).

Its SKILL.md is about 510 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files (for example `REFERENCES.md` and `demo/PROMPT.md`).

It sits in Game Development, covering 3D graphics and WebGL. It works with React and Next.js. The repository describes itself as: Open-source platform for 3D AI agents. Turn text or a photo into a rigged, animated GLB avatar, give it an LLM brain, memory and a wallet, and embed it anywhere with one web… The licence is Apache-2.0.

When your agent uses it

  • Adding animated WebGL background effects with Vanta.js (setup
  • Integration in React/Next.js)

Example prompts

  • “/vantajs”

Workflow steps

2 steps, taken from the step headings in SKILL.md.

  1. Minimal waves background
  2. React cleanup pattern (concept)

What it can do on your machine

Read from SKILL.md and the folder at commit 238ef60. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are html).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • cdnjs.cloudflare.com
    • cdn.jsdelivr.net

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Vantajs loads about 506 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 195 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~36
When it runs · the whole SKILL.md, loaded when a task matches
~506

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from nirholas/three.ws at commit 238ef60, republished under its Apache-2.0 licence (© nirholas). 195 words, ~506 tokens.

Download SKILL.mdSave it as .claude/skills/vantajs/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.
name
vantajs
description
Use when adding animated WebGL background effects with Vanta.js (setup, parameters, resizing, performance, integration in React/Next.js).

Vanta.js — Animated WebGL Backgrounds Skill

When to use

  • Decorative animated backgrounds behind hero sections
  • You want “wow” quickly without building a full three.js scene
  • Lightweight integration into static sites or React/Vue

How it works

  • Vanta injects a canvas into a container element and renders an effect (many use three.js).
  • Typical usage: include three.min.js (or provide THREE) + one Vanta effect bundle.

Key APIs/patterns

  • Init:
    • const effect = VANTA.WAVES({ el: "#hero", ...options })
  • Update after init:
    • effect.setOptions({ color: 0xff88cc })
  • Resize:
    • effect.resize() (if container size changes)
  • Cleanup:
    • effect.destroy() (important in SPAs)

Common pitfalls

  • Container has no size → nothing visible
    • Ensure the target element has explicit width/height (or is laid out).
  • Multiple WebGL canvases on one page → GPU load
    • Keep to 1–2 effects/page.
  • Mobile/older GPU issues
    • Provide a fallback background color/image; consider disabling on small screens.
  • Bundling in frameworks
    • Some builds require window.THREE or passing THREE in options.

Quick recipes

1) Minimal waves background
html
<div id="hero" style="height: 70vh;"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r134/three.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/vanta/dist/vanta.waves.min.js"></script>
<script>
  const effect = VANTA.WAVES({ el: "#hero", color: 0x0b1220, shininess: 40, waveHeight: 16, zoom: 0.9 });
</script>
2) React cleanup pattern (concept)
  • Create effect in useEffect, store in ref, call destroy() on unmount.

What to ask the user

  • Which effect (waves, birds, fog, net, etc.) and brand colors?
  • Must it run on mobile? If yes, what’s acceptable FPS/quality?
  • Is it behind text (needs contrast/readability)?

© nirholas, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files in third_party/designcode-agent-skills/agent-skills/web-design/vantajs of nirholas/three.ws.

  • SKILL.md
  • REFERENCES.md
  • demo/PROMPT.md
  • demo/index.html
  • demo/preview.jpg

Open the folder on GitHubat commit 238ef60

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in nirholas/three.ws, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Vantajs next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Vantajs compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Vantajs this skillnirholas/three.ws2261 repos~506Automated safety check: PassApache-2.0
Multi Surface Renderyonatangross/orchestkit288—~4kAutomated safety check: PassMIT
Web CloneJane-xiaoer/claude-skill-web-clone1k1 repos~2.7kAutomated safety check: PassMIT
Petdexcrafter-station/petdex4.2k—~614Automated safety check: PassMIT
Coss Particlescrafter-station/petdex4.2k—~10kAutomated safety check: PassMIT
Improve Threejsmillionco/react-doctor15k—~2.3kAutomated safety check: PassCustom licence

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Works with

Categories

Questions about Vantajs

What does Vantajs do?

A skill your agent uses when adding animated WebGL background effects with Vanta.js (setup, parameters, resizing, performance, integration in React/Next.js). ws.js).

When should I use Vantajs?

Vantajs fits situations like: adding animated WebGL background effects with Vanta.js (setup; integration in React/Next.js).

How do I install Vantajs in Claude Code?

Run `npx skills add nirholas/three.ws --skill vantajs -a claude-code`. Or copy the skill folder (third_party/designcode-agent-skills/agent-skills/web-design/vantajs in nirholas/three.ws) into .claude/skills/vantajs in your project. Claude Code loads it when a task matches its description.

How do I install Vantajs in Codex?

Run `npx skills add nirholas/three.ws --skill vantajs -a codex`. Or copy the skill folder (third_party/designcode-agent-skills/agent-skills/web-design/vantajs in nirholas/three.ws) into .agents/skills/vantajs in your project. Codex loads it when a task matches its description.

Can I use Vantajs in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nirholas/three.ws --skill vantajs -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/vantajs, .gemini/skills/vantajs, .github/skills/vantajs and .opencode/skills/vantajs in your project.

What does Vantajs need to run?

SKILL.md names no scripts, command-line tools or credentials: Vantajs is instructions for the agent only.

Does Vantajs access the network?

SKILL.md names 2 domains. In commands or code: cdnjs.cloudflare.com and cdn.jsdelivr.net; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.

Is Vantajs safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Vantajs use?

Vantajs is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Vantajs use?

About 506 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Vantajs?

Skills that share tags, products or a category with Vantajs: Multi Surface Render (yonatangross/orchestkit, 288 stars), Web Clone (Jane-xiaoer/claude-skill-web-clone, 1k stars), Petdex (crafter-station/petdex, 4.2k stars) and Coss Particles (crafter-station/petdex, 4.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Vantajs?

nirholas (a GitHub user) maintains it in nirholas/three.ws, which has 226 GitHub stars. The repository holds 165 skills in this directory. The repository was last updated on October 7, 2026.

Source: nirholas/three.ws on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.