vrchat-dev

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

• VRChat SDK3 Documentation
• UdonSharp Documentation
• modularavatar
• PhysBones
• VRChat Performance Stats

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