Build a playable 3D world with a three.js skill

Install a three.js skill, describe one scene, add water, fog, weather and day/night one prompt each, and let Opus loop.

In short

What it does: Install a three.js skill, describe one scene, add water, fog, weather and day/night one prompt each, and let Opus loop.

Agent: Claude · Category: Games

Steps in brief:

  1. Install a three.js skill into Claude Code (the post points to MengTo’s open-source skills).
  2. Describe one scene: a boat, a river, a valley.
  3. Add water, fog, weather, day and night, one prompt each.

+2 more steps in the copyable prompt.

Who made it: Amodex (X post, 23 Sep 2026) · source

Last updated · based on 336 use cases on agentsetups, each credited to its author.

by Amodex23 Sep 2026

Prompt for your agent

Goal: Make a browser 3D world without a game engine.
Setup: agents used in source: Claude; tools/MCPs stated: three.js.
Steps:
1. Install a three.js skill into Claude Code (the post points to MengTo’s open-source skills).
2. Describe one scene: a boat, a river, a valley.
3. Add water, fog, weather, day and night, one prompt each.
4. Feed it screenshots of the look, not paragraphs.
5. Let Opus loop for hours on details, then publish and share one link.
Rules: ask me before anything irreversible (sending, posting, paying, deleting); don’t invent data, results or tools I haven’t given you; tell me what you couldn’t verify.
Based on: Amodex — https://x.com/amodexbt/status/2102806581565923344

Steps are from the source. Includes a “Based on” credit line.

I tried this

Tell the next builder. One anonymous answer each; click again to undo.

Agents, models and tools only what the source states

Agents
Claude
Models
Opus 5.5
Tools
  • three.js

Sources & credit