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Unity MCP Bridge - Asset Store Compliance Implementation

Overview

This implementation provides a comprehensive post-installation prompt system for Unity MCP Bridge that ensures Asset Store compliance while maintaining full functionality. The system guides users through dependency installation and setup without bundling external dependencies in the package.

Key Features

1. Dependency Detection System

  • Cross-platform detection for Windows, macOS, and Linux
  • Intelligent path resolution for Python and UV installations
  • Version validation to ensure compatibility
  • Comprehensive diagnostics for troubleshooting

2. Setup Wizard System

  • Automatic triggering on first use or when dependencies are missing
  • Progressive disclosure with step-by-step guidance
  • Persistent state management to avoid repeated prompts
  • Manual invocation via Window menu

3. Installation Orchestrator

  • Guided installation workflow with progress tracking
  • Asset Store compliant - no automatic downloads of external tools
  • Clear instructions for manual installation
  • Fallback modes for incomplete installations

4. Asset Store Compliance

  • No bundled Python dependencies in package structure
  • External server distribution strategy
  • Clean package structure without embedded executables
  • User-guided installation process

Architecture

Core Components

UnityMcpBridge/Editor/
├── Dependencies/
│   ├── DependencyManager.cs          # Main orchestrator
│   ├── Models/
│   │   ├── DependencyStatus.cs       # Status representation
│   │   ├── DependencyCheckResult.cs  # Check results
│   │   └── SetupState.cs            # Persistent state
│   └── PlatformDetectors/
│       ├── IPlatformDetector.cs      # Platform interface
│       ├── WindowsPlatformDetector.cs
│       ├── MacOSPlatformDetector.cs
│       └── LinuxPlatformDetector.cs
├── Setup/
│   ├── SetupWizard.cs               # Auto-trigger logic
│   └── SetupWizardWindow.cs         # UI implementation
└── Installation/
    └── InstallationOrchestrator.cs  # Installation workflow

Integration Points

The system integrates seamlessly with existing Unity MCP Bridge components:

  • ServerInstaller: Enhanced with dependency validation
  • MCPForUnityBridge: Maintains existing functionality
  • Menu System: New setup options in Window menu
  • Logging: Uses existing McpLog infrastructure

User Experience Flow

First-Time Setup

  1. Automatic Detection: System checks for dependencies on first load
  2. Setup Wizard: Shows if dependencies are missing
  3. Guided Installation: Step-by-step instructions for each platform
  4. Validation: Confirms successful installation
  5. Completion: Marks setup as complete to avoid repeated prompts

Ongoing Usage

  • Background Checks: Periodic validation of dependency availability
  • Error Recovery: Helpful messages when dependencies become unavailable
  • Manual Access: Setup wizard available via Window menu
  • Diagnostics: Comprehensive dependency information for troubleshooting

Asset Store Compliance Features

No Bundled Dependencies

  • Python interpreter not included in package
  • UV package manager not included in package
  • MCP server distributed separately (embedded in package as source only)

User-Guided Installation

  • Platform-specific installation instructions
  • Direct links to official installation sources
  • Clear error messages with actionable guidance
  • Fallback modes for partial installations

Clean Package Structure

  • No executable files in package
  • No large binary dependencies
  • Minimal package size impact
  • Clear separation of concerns

Platform Support

Windows

  • Python Detection: Microsoft Store, python.org, and PATH resolution
  • UV Detection: WinGet, direct installation, and PATH resolution
  • Installation Guidance: PowerShell commands and direct download links

macOS

  • Python Detection: Homebrew, Framework, system, and PATH resolution
  • UV Detection: Homebrew, curl installation, and PATH resolution
  • Installation Guidance: Homebrew commands and curl scripts

Linux

  • Python Detection: Package managers, snap, and PATH resolution
  • UV Detection: curl installation and PATH resolution
  • Installation Guidance: Distribution-specific package manager commands

Error Handling

Graceful Degradation

  • System continues to function with missing optional dependencies
  • Clear error messages for missing required dependencies
  • Fallback modes for partial installations
  • Recovery suggestions for common issues

Comprehensive Diagnostics

  • Detailed dependency status information
  • Platform-specific troubleshooting guidance
  • Version compatibility checking
  • Path resolution diagnostics

Testing Strategy

Unit Testing

  • Platform detector validation
  • Dependency status modeling
  • Setup state persistence
  • Error condition handling

Integration Testing

  • End-to-end setup workflow
  • Cross-platform compatibility
  • Existing functionality preservation
  • Performance impact assessment

User Acceptance Testing

  • First-time user experience
  • Setup wizard usability
  • Error recovery scenarios
  • Documentation clarity

Performance Considerations

Minimal Impact

  • Lazy loading of dependency checks
  • Cached results where appropriate
  • Background processing for non-critical operations
  • Efficient platform detection

Resource Usage

  • Minimal memory footprint
  • No persistent background processes
  • Efficient file system operations
  • Optimized UI rendering

Future Enhancements

Planned Features

  • Automatic Updates: Notification system for dependency updates
  • Advanced Diagnostics: More detailed system information
  • Custom Installation Paths: Support for non-standard installations
  • Offline Mode: Enhanced functionality without internet access

Extensibility

  • Plugin Architecture: Support for additional dependency types
  • Custom Detectors: User-defined detection logic
  • Integration APIs: Programmatic access to dependency system
  • Event System: Hooks for custom setup workflows

Migration Strategy

Existing Users

  • Automatic detection of existing installations
  • Seamless upgrade path from previous versions
  • Preservation of existing configuration
  • Optional re-setup for enhanced features

New Users

  • Guided onboarding experience
  • Clear setup requirements
  • Comprehensive documentation
  • Community support resources

Documentation

User Documentation

  • Setup guide for each platform
  • Troubleshooting common issues
  • FAQ for dependency management
  • Video tutorials for complex setups

Developer Documentation

  • API reference for dependency system
  • Extension guide for custom detectors
  • Integration examples
  • Best practices guide

Support and Maintenance

Issue Resolution

  • Comprehensive logging for debugging
  • Diagnostic information collection
  • Platform-specific troubleshooting
  • Community support channels

Updates and Patches

  • Backward compatibility maintenance
  • Security update procedures
  • Performance optimization
  • Feature enhancement process

This implementation ensures Unity MCP Bridge meets Asset Store requirements while providing an excellent user experience for dependency management and setup.