cobejs

MengTo/Skills · Agent Skill

Use when building lightweight animated globe or orb visuals with Cobe.

Jump to install ↓

Overview

PublisherMengToCommunity
RepositoryMengTo/Skills ↗
Skill foldercobejs
Stars7,038
Forks819
Bundled files5
LicenseMIT
Last updatedOctober 25, 2026
LinksSkill source ↗ · Repository ↗

Mozgi check

What we found in the skill files. Details come with a subscription.

Security
low risk · no obvious risks found — the full report shows the details
Compatibility
instructions only — works with most agents
Similar skills
62 similar skills found
Also with subscription

Installation

A skill is a folder with a SKILL.md file. Pick your agent and run the commands in a terminal (macOS, Linux or Git Bash on Windows) from your project root.

Copy the prompt into Claude, Codex or another assistant: it will review the skill and install it for you.

Install the “cobejs” skill from mozgi.io (https://mozgi.io/skills/mengto-cobejs/) for me.

1. Download the archive: https://mozgi.io/skills/mengto-cobejs/download
   If it fails, take the skill folder from the source: https://github.com/MengTo/Skills/tree/main/agent-skills/web-design/cobejs
2. Read SKILL.md and the other files. Check the skill is safe: no hidden commands, no sending data elsewhere, no scripts doing something other than described. If anything looks suspicious, stop and tell me.
3. Put the “cobejs” folder into your agent's skills folder: .claude/skills/ for Claude Code, .agents/skills/ for Codex, .cursor/skills/ for Cursor, .gemini/skills/ for Gemini CLI. Inside the project if we are in one, otherwise in the home folder (~/.claude/skills/ etc.).
4. Make sure <skills folder>/cobejs/SKILL.md exists.
5. Briefly tell me what this skill does and offer to try it on my task.

If you cannot do a step yourself, tell me what to click or type.

Review the source files

5 files Download Zip

Read SKILL.md and any companion files before deciding whether to install. Click a file to preview it.

SKILL.md contents

Original author text · read-only

cobe.js — Lightweight WebGL Globe Skill

When to use

  • A “spinning globe” / location markers in hero or about pages
  • You want a small, focused globe lib (not full three.js)
  • Decorative + interactive (markers, rotation) with minimal setup

Key APIs/patterns

  • Core:
  • import createGlobe from "cobe"
  • const globe = createGlobe(canvas, { ...options, onRender(state) { ... } })
  • Important options (common):
  • devicePixelRatio, width, height
  • phi, theta (rotation angles)
  • scale, dark, diffuse
  • baseColor, markerColor, glowColor
  • markers: [{ location: [lat, lon], size, color? }]
  • Lifecycle:
  • globe.toggle() pauses RAF
  • globe.destroy() removes instance

Common pitfalls

  • Canvas sizing mismatch
  • Set CSS size AND set canvas width/height scaled for DPR.
  • Not updating on resize
  • Recompute width/height and recreate or update params.
  • Too high DPR on mobile
  • Clamp DPR to 1–2.

Quick recipe: responsive globe with markers

import createGlobe from "cobe";

const canvas = document.getElementById("cobe");
let phi = 0;

function setup() {
  const rect = canvas.getBoundingClientRect();
  const dpr = Math.min(window.devicePixelRatio, 2);
  canvas.width = Math.round(rect.width * dpr);
  canvas.height = Math.round(rect.height * dpr);

  const globe = createGlobe(canvas, {
    devicePixelRatio: dpr,
    width: canvas.width,
    height: canvas.height,
    phi: 0,
    theta: 0.2,
    dark: 0,
    diffuse: 1.2,
    scale: 1,
    mapSamples: 16000,
    mapBrightness: 6,
    baseColor: [0.2, 0.2, 0.25],
    glowColor: [1, 1, 1],
    markerColor: [0.8, 0.5, 1],
    markers: [{ location: [1.3521, 103.8198], size: 0.08 }],
    onRender: (state) => {
      state.phi = phi;
      phi += 0.01;
    },
  });

  return globe;
}

let globe = setup();
window.addEventListener("resize", () => {
  globe.destroy();
  globe = setup();
});

What to ask the user

  • Globe size and placement (hero, section, card)?
  • Marker locations + colors (brand-aligned)?
  • Interaction needs (drag to rotate vs. ambient spin)?

Frequently asked questions

What does the cobejs skill do?

Use when building lightweight animated globe or orb visuals with Cobe.

How do I install cobejs?

Open the “Installation” block on this page and pick your agent — Claude Code, Codex, Cursor or Gemini CLI — for ready-made commands that copy the skill folder to the right place. Or copy the prompt from the “Via assistant” tab and let the assistant review and install the skill.

Which AI models work with cobejs?

Skills are plain Markdown instructions (the Agent Skills format), so cobejs works with any agent that reads SKILL.md: Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and more. The model loads the instructions only when a task matches the skill's description.

Is cobejs free?

The skill is published openly by MengTo under the MIT license. The skill itself costs nothing — you only pay your AI provider for the tokens you use.

Is it safe to install skills?

A skill is a set of instructions your agent will follow, so read SKILL.md and its companion files before installing. Scripts in the skill folder only run if your agent runs them — keep an eye on what it does and do not grant unnecessary permissions.

How is a skill different from an MCP server or a plugin?

An MCP server or plugin gives the model new tools — code that runs and returns a result. A skill gives it knowledge and process: how to approach a task, which steps to follow and what good output looks like. It needs no server or API key.

Related skills

All skills →
tailwindcss Use when you are implementing UI with Tailwind and want reusable, practical utility-first patterns. MengTo7k to-prd Turns a conversation into a PRD and publishes it to the issue tracker. mattpocock304k tdd Red-green-refactor workflow for building features and fixes one slice at a time. mattpocock304k diagnosing-bugs Systematic bug diagnosis through reproduce, minimize, hypothesize, instrument, and fix. mattpocock304k domain-modeling Builds and sharpens project domain models and terminology. mattpocock304k ask-matt Router that picks the right Matt Pocock engineering flow for the current task. mattpocock304k