AutoGineer
Generated banner for Optimize Threejs Games
Generated logo for Optimize Threejs Games

Optimize Threejs Games

Meng ToCommunityCreated by Meng To

  • Skill
  • Review and audit
  • Software development
  • MIT
  • No issues found
Download ZIP

From the author

Profile, diagnose, and improve Three.js or WebGL game performance without regressing gameplay. Use for frame-time drops, CPU/GPU pressure, draw calls, texture and geometry budgets, animation loops, adaptive quality, mobile performance, and browser performance verification.
— the description by Meng To

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

This skill provides a systematic approach to identifying and resolving performance bottlenecks in Three.js and WebGL-based games. It emphasizes a data-driven methodology, requiring users to establish repeatable test scenarios before applying targeted optimizations. The workflow guides developers through diagnosing whether issues are CPU or GPU-bound, applying low-risk fixes such as object pooling and geometry reuse, and verifying results to ensure gameplay integrity remains intact.

What it does

  • Establishes repeatable test scenarios for consistent performance measurement.
  • Distinguishes between CPU-bound and GPU-bound performance bottlenecks.
  • Provides strategies for optimizing draw calls, texture budgets, and geometry.
  • Suggests low-risk implementation fixes like object pooling and culling.
  • Outlines a validation process to ensure optimizations do not break game mechanics.

When to use it

  • When experiencing frame-time drops or stuttering in a Three.js game.
  • When optimizing a game for mobile devices with limited hardware resources.
  • When investigating high CPU or GPU pressure during gameplay.
  • When needing to reduce draw calls or memory usage in a WebGL scene.

Advantages

  • Promotes a disciplined, measurement-first approach to performance tuning.
  • Helps prevent regressions in gameplay and visual quality.
  • Provides clear criteria for identifying the root cause of performance issues.
  • Encourages reversible and explicit quality adjustments.

Usage examples

“My Three.js game drops frames when many particles are on screen. How do I optimize this?”
The agent will guide you to profile the scene, identify if the bottleneck is GPU-bound due to overdraw, and suggest techniques like particle pooling or capping counts.
“How can I verify if my performance improvements for a WebGL scene are actually working?”
The agent will help you set up a repeatable test encounter to compare frame-time samples, draw calls, and memory usage before and after your changes.

Install

  1. Download the skill as a ZIP:

    https://mp-staging.autogineer.com/agent-skills/mengto/optimize-threejs-games/download

  2. Unzip it into the cross-client skills folder of your project:

    mkdir -p .agents/skills && unzip optimize-threejs-games.zip -d .agents/skills

Documentation by Meng To

Optimize Three.js Games

Measure before changing behavior, then validate the same gameplay path after every optimization.

Establish a repeatable scene

Choose a deterministic representative encounter and record device, viewport, quality level, player position, enemies, active effects, frame-time sample, draw calls, triangles, texture count, and warnings. Compare like with like.

Diagnose the limiting side

  • Suspect CPU when simulation, allocations, React work, pathfinding, or per-frame scans grow with actors.

  • Suspect GPU when resolution, overdraw, shadows, transparent particles, post-processing, draw calls, geometry, or texture bandwidth dominate.

  • Inspect before optimizing; do not lower quality blindly.

Apply low-risk fixes first

Reuse geometry/materials, pool transient effects, cull inactive/offscreen work, throttle noncritical UI updates, cap particle counts, avoid per-frame allocation, and update only changed transforms. Keep render quality settings explicit and reversible. Degrade decorative effects before combat readability or controls.

Guard the result

Re-run the original encounter and verify frame time, visual correctness, collision/contact behavior, memory stability, mobile controls, reduced motion, and console health. Close temporary servers, benchmarks, and browser tabs once they are no longer needed.

Files

agents/openai.yaml

interface:
  display_name: "Optimize Three.js Games"
  short_description: "Profile and improve Three.js game performance"
  default_prompt: "Use $optimize-threejs-games to profile and improve a Three.js game."

Requirements and compatibility

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Security

No issues found by our static scan· No issues found

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

Attribution and licence

Created by
Meng To
Publisher
Meng To (Community)
Source
MengTo/Skills · agent-skills/game-development/optimize-threejs-games · commit 5ea1661
Licence
MIT License (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
Synced

AutoGineer is not affiliated with or endorsed by Meng To.

Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download optimize-threejs-games.zip