Agent skill

Threejs

by nexu-io in nexu-io/open-design

Three.js skills for creating 3D elements and interactive experiences in the browser — scenes, materials, controls, and post-processing.

Apache-2.0Auto-check passedGame Development

Install Threejs

skills CLI
$ npx skills add nexu-io/open-design --skill threejs -a claude-code

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

GitHub CLI
$ gh skill install nexu-io/open-design threejs --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/nexu-io/open-design.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/threejs .claude/skills/threejs && 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
threejs
GitHub stars
100k
Token cost
~292 tokens
SKILL.md length
93 words
Files
1
Skills in repo
244
Repo updated
First seen
Licence
Apache-2.0

At a glance

Three.js skills for creating 3D elements and interactive experiences in the browser — scenes, materials, controls, and post-processing.

  • Tasks that involve 3D graphics and WebGL
  • SKILL.md covers What it does, Source and How to use
  • Reaches github.com

What it does

Threejs is an agent skill from nexu-io/open-design. Three.js skills for creating 3D elements and interactive experiences in the browser — scenes, materials, controls, and post-processing.

Its SKILL.md is about 290 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Game Development, covering 3D graphics and WebGL. It works with Three.js. The repository describes itself as: 🎨 Best DeepSeek Harness Design Plugin. The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes… The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve 3D graphics and WebGL

Example prompts

  • “/threejs”

What it can do on your machine

Read from SKILL.md and the folder at commit 53231d4. 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 bash).

    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:

    • github.com

    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

Threejs loads about 292 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 93 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
~292

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 nexu-io/open-design at commit 53231d4, republished under its Apache-2.0 licence (© nexu-io). 93 words, ~292 tokens.

Download SKILL.mdSave it as .claude/skills/threejs/SKILL.md (or your agent's skills folder).
name
threejs
description
Three.js skills for creating 3D elements and interactive experiences in the browser — scenes, materials, controls, and post-processing.
triggers
threejs, three.js, 3d web, webgl scene, 3d interactive
od.mode
prototype
od.category
3d-shaders
od.upstream
https://github.com/CloudAI-X/threejs-skills

threejs

Curated from CloudAI-X.

What it does

Three.js skills for creating 3D elements and interactive experiences in the browser — scenes, materials, controls, and post-processing.

Source

How to use

This catalogue entry advertises the skill in OpenDesign so the agent discovers it during planning. To run the full upstream workflow with its original assets, scripts, and references, install the upstream bundle into your active agent's skills directory:

bash
# Inspect the upstream README for exact paths
open https://github.com/CloudAI-X/threejs-skills

Then ask the agent to invoke this skill by name (threejs) or with one of the trigger phrases listed in this skill's frontmatter.

© nexu-io, 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

Just SKILL.md in skills/threejs of nexu-io/open-design.

Open the folder on GitHubat commit 53231d4

Compare with similar skills

Threejs 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.

Threejs compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Threejs this skillnexu-io/open-design100k—~292Automated safety check: PassApache-2.0
Image to Three.js Modelimg2threejs/img2threejs18k1 repos~8.2kAutomated safety check: PassApache-2.0
Web CloneJane-xiaoer/claude-skill-web-clone1k1 repos~2.7kAutomated safety check: PassMIT
Threejs Game Directormajidmanzarpour/threejs-game-skills2.4k—~2.2kAutomated safety check: PassMIT
Threejs Gameplay Systemsvalkor-ai/loom1.2k1 repos~1.4kAutomated safety check: PassApache-2.0
Threejs World Generationcalesthio/OpenMontage65k—~2kAutomated safety check: PassAGPL-3.0

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Works with

Questions about Threejs

What does Threejs do?

Three.js skills for creating 3D elements and interactive experiences in the browser — scenes, materials, controls, and post-processing. Threejs is an agent skill from nexu-io/open-design.js skills for creating 3D elements and interactive experiences in the browser — scenes, materials, controls, and post-processing.

When should I use Threejs?

Threejs fits situations like: tasks that involve 3D graphics and WebGL.

How do I install Threejs in Claude Code?

Run `npx skills add nexu-io/open-design --skill threejs -a claude-code`. Or copy the skill folder (skills/threejs in nexu-io/open-design) into .claude/skills/threejs in your project. Claude Code loads it when a task matches its description.

How do I install Threejs in Codex?

Run `npx skills add nexu-io/open-design --skill threejs -a codex`. Or copy the skill folder (skills/threejs in nexu-io/open-design) into .agents/skills/threejs in your project. Codex loads it when a task matches its description.

Can I use Threejs 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 nexu-io/open-design --skill threejs -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/threejs, .gemini/skills/threejs, .github/skills/threejs and .opencode/skills/threejs in your project.

What does Threejs need to run?

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

Does Threejs access the network?

SKILL.md names 1 domain. In commands or code: github.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Threejs 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 Threejs use?

Threejs 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 Threejs use?

About 292 tokens (SKILL.md is roughly 1.2k 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 Threejs?

Skills that share tags, products or a category with Threejs: Image to Three.js Model (img2threejs/img2threejs, 18k stars), Web Clone (Jane-xiaoer/claude-skill-web-clone, 1k stars), Threejs Game Director (majidmanzarpour/threejs-game-skills, 2.4k stars) and Threejs Gameplay Systems (valkor-ai/loom, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Threejs?

nexu-io (a GitHub organization) maintains it in nexu-io/open-design, which has 99,739 GitHub stars. The repository holds 244 skills in this directory. The repository was last updated on October 7, 2026.

Source: nexu-io/open-design on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.