vrchat-dev - SKILL.md Agent Skill

name: vrchat-dev description: "VRChat world and avatar development skill with UdonSharp, modularavatar, and PhysBones support. Automates VRChat SDK3 development workflows."

VRChat Dev Agent Skill

Overview

VRChat world and avatar development skill with UdonSharp, modularavatar, and PhysBones support. Automates VRChat SDK3 development workflows including world building, avatar configuration, and upload automation.

Capabilities

UdonSharp Development: Write, compile, and optimize Udon/UdonSharp scripts for VRChat worlds
World Building: Create VRChat worlds with dynamic content, interactive objects, and optimization
Avatar Configuration: Configure avatars with modularavatar, PhysBones, and contact systems
Shader Integration: Work with popular shaders like liltoon and Poiyomi
World Upload: Automate world upload and version management
Performance Optimization: Optimize worlds for various performance tiers

Tools Required

MCP Tools

vrchat_compile_udon - Compile UdonSharp scripts
vrchat_upload_world - Upload world to VRChat
vrchat_upload_avatar - Upload avatar to VRChat
vrchat_configure_avatar - Configure avatar with modularavatar
vrchat_setup_physbones - Setup PhysBones configuration
vrchat_create_contact - Create contact systems
vrchat_optimize_world - Optimize world performance

File System Access

Read: Full project access
Write: ./vrchat-projects/, ./artifacts/, *.cs, *.asset

Network Access

https://api.vrchat.cloud/ - VRChat API
https://vrchat.com/ - VRChat website

Shell Commands

dotnet - .NET SDK for UdonSharp
git - Version control
node - Node.js for tools

Usage Examples

Basic World Development

codex $vrchat-dev "Create a new VRChat world with interactive objects"

Avatar Configuration

codex $vrchat-dev "Configure avatar with modularavatar and PhysBones"

UdonSharp Scripting

codex $vrchat-dev "Write UdonSharp script for door interaction system"

VRChat Project Structure

vrchat-project/
├── Assets/
│   ├── Scripts/
│   │   └── Udon/
│   │       ├── MainController.cs
│   │       └── InteractiveObjects/
│   ├── Shaders/
│   ├── Materials/
│   └── Prefabs/
├── Packages/
│   ├── com.vrchat.sdk3/
│   ├── com.modularavatar/
│   └── com.liltoon/
├── ProjectSettings/
└── Unity/

Performance Tiers

VRChat supports multiple performance tiers:

Tier	Description	Requirements
Low	Minimum specs	Simple geometry, basic shaders
Medium	Balanced	Moderate complexity
High	High-end	Complex shaders, particles
Ultra	Maximum	Full features enabled

Output Format

The vrchat-dev agent provides:

UdonSharp code with compilation
World configuration files
Avatar setup scripts
Performance optimization recommendations
Upload-ready packages

References

Installation: $ codex $skill-install https://github.com/zapabob/codex-vrchat-dev-skill Version: 1.0.0 Compatibility: Codex v2.14.0+