How do I install the Unity Webgl Pruning skill?

Run npx skillmds@latest add meyverick/unity-webgl-pruning in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Unity Webgl Pruning safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Unity Webgl Pruning?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Unity Webgl Pruning free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Unity Webgl Pruning?

meyverick (@meyverick) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Unity Webgl Pruning by meyverick — Agent Skill

Name: Unity Webgl Pruning
Author: meyverick

File contents

Unity WebGL Pruning

This skill dictates the aggressive stripping of Unity engine modules and asset compression to generate minimal WebAssembly (Wasm) builds suitable for HTML5 Playable Ads.

When to Use

Use when configuring Player Settings for a WebGL export.
Use when the final .wasm.br or .data files exceed 5MB.
NOT for PC/Console standalone builds where size is unlimited.

Core Process

Phase 1: Code Stripping

Set Managed Stripping Level to High.
Disable unused engine modules in Player Settings -> Built-in Packages (e.g., disable Physics 3D if the game is 2D, disable Unity UI if using HTML/DOM UI).

Phase 2: Texture & Audio Compression

Force all textures to ASTC or Crunch compression. Ensure Max Size is restricted to 512 or 1024.
Force all audio clips to Force To Mono and compress as MP3/Vorbis at a low bitrate (e.g., 64kbps).

Phase 3: WebAssembly Optimization

Enable Brotli compression.
Disable Exceptions (set to None).
Disable Auto Graphics API and explicitly select only WebGL 2.0 (fallback to 1.0 if strictly required by the ad network).

Common Rationalizations

Rationalization	Reality
"I'll leave Physics 3D enabled just in case."	Every unused module adds hundreds of kilobytes to the Wasm binary. You must explicitly strip everything not actively used.
"High stripping level breaks my reflection code."	You must use `link.xml` to preserve specific classes rather than lowering the stripping level globally.

Red Flags

Managed Stripping Level set to Low or Minimal.
Textures importing at 2048x2048 without compression overrides.

Verification

Before concluding the WebGL optimization, verify:

Stripping level is set to High.
Unused Built-in Packages (Physics, UI, AI) are explicitly disabled.
Exceptions are disabled and Brotli compression is active.

---name: unity-webgl-pruningdescription: Optimizes and prunes Unity WebGL exports. Use when reducing final build payload sizes to meet strict playable ad limits (e.g., < 5MB).---# Unity WebGL PruningThis skill dictates the aggressive stripping of Unity engine modules and asset compression to generate minimal WebAssembly (Wasm) builds suitable for HTML5 Playable Ads.## When to Use- **Use when** configuring Player Settings for a WebGL export.- **Use when** the final `.wasm.br` or `.data` files exceed 5MB.- **NOT for** PC/Console standalone builds where size is unlimited.## Core Process### Phase 1: Code Stripping- Set `Managed Stripping Level` to **High**.- Disable unused engine modules in `Player Settings -> Built-in Packages` (e.g., disable Physics 3D if the game is 2D, disable Unity UI if using HTML/DOM UI).### Phase 2: Texture & Audio Compression- Force all textures to ASTC or Crunch compression. Ensure `Max Size` is restricted to 512 or 1024.- Force all audio clips to `Force To Mono` and compress as MP3/Vorbis at a low bitrate (e.g., 64kbps).### Phase 3: WebAssembly Optimization- Enable **Brotli** compression.- Disable **Exceptions** (set to `None`).- Disable **Auto Graphics API** and explicitly select only WebGL 2.0 (fallback to 1.0 if strictly required by the ad network).## Common Rationalizations| Rationalization | Reality ||---|---|| "I'll leave Physics 3D enabled just in case." | Every unused module adds hundreds of kilobytes to the Wasm binary. You must explicitly strip everything not actively used. || "High stripping level breaks my reflection code." | You must use `link.xml` to preserve specific classes rather than lowering the stripping level globally. |## Red Flags- `Managed Stripping Level` set to `Low` or `Minimal`.- Textures importing at `2048x2048` without compression overrides.## VerificationBefore concluding the WebGL optimization, verify:- [ ] Stripping level is set to `High`.- [ ] Unused Built-in Packages (Physics, UI, AI) are explicitly disabled.- [ ] Exceptions are disabled and Brotli compression is active.

Frequently asked questions

Unity Webgl Pruning