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@codegen-sh codegen-sh bot commented Jun 8, 2025

Enhanced MCP Capabilities for XcodeBuildMCP

This PR significantly expands XcodeBuildMCP's capabilities by implementing the full Model Context Protocol specification, adding resources, prompts, and sampling capabilities while maintaining complete backward compatibility.

🚀 New Features

📁 Resources - Project Context Access

  • Project Information: Access project metadata, schemes, targets, and configuration
  • Build Settings: Retrieve build settings for specific schemes with auto-completion
  • Build Logs: Access latest build logs with intelligent parsing
  • Simulator Context: Get comprehensive simulator device, runtime, and status information

📝 Prompts - Structured Workflow Templates

  • Debugging Workflows: Build failure analysis, crash debugging, simulator troubleshooting
  • CI/CD Setup: GitHub Actions and Xcode Cloud configuration templates
  • Performance Optimization: Build and app performance analysis workflows
  • Testing Strategy: Comprehensive testing setup and failure diagnosis
  • Project Setup: New project configuration and legacy project migration

🤖 Sampling - Autonomous Operations (Future)

  • Infrastructure Ready: Framework prepared for autonomous debugging and optimization
  • Security First: Requires explicit client support and user consent
  • Intelligent Assistance: Foundation for proactive error analysis and suggestions

⚙️ Configuration System

  • Capability Control: Environment variables to enable/disable specific features
  • Backward Compatibility: Tools remain enabled by default for existing clients
  • Flexible Deployment: Configure capabilities based on client support and needs

🔧 Technical Implementation

Server Capabilities Enhancement

  • Extended server configuration to advertise multiple MCP capabilities
  • Implemented proper capability negotiation and feature detection
  • Added comprehensive error handling and graceful degradation

Resource System

  • URI Schemes: xcode://project/*, xcode://build/*, xcode://simulator/*
  • Template Support: Dynamic resource templates with parameter completion
  • Content Types: JSON metadata and plain text logs with proper MIME types
  • Caching: Efficient resource access with minimal performance impact

Prompt Templates

  • Parameterized Workflows: Zod schema validation for prompt parameters
  • Contextual Guidance: Structured prompts for common development scenarios
  • Best Practices: Embedded development best practices and troubleshooting steps

Configuration Management

# Configure capabilities (defaults shown)
export XCODEBUILDMCP_ENABLE_TOOLS=true      # Xcode operations
export XCODEBUILDMCP_ENABLE_RESOURCES=true  # Project context
export XCODEBUILDMCP_ENABLE_PROMPTS=true    # Workflow templates
export XCODEBUILDMCP_ENABLE_SAMPLING=false  # Autonomous operations

📚 Documentation

Comprehensive documentation added:

  • Resources Guide: Complete resource reference with examples
  • Prompts Guide: Workflow templates and usage patterns
  • Sampling Guide: Future autonomous capabilities
  • Updated README: Enhanced overview with capability descriptions

🔄 Backward Compatibility

  • 100% Compatible: Existing tool functionality unchanged
  • Default Behavior: Tools enabled by default for maximum compatibility
  • Graceful Degradation: New features degrade gracefully on unsupported clients
  • Migration Path: Clear upgrade path for clients wanting enhanced features

🧪 Testing & Quality

  • Build Verification: All code compiles successfully with TypeScript
  • Error Handling: Comprehensive error handling for all new capabilities
  • Resource Validation: Proper validation and error responses for invalid requests
  • Documentation: Complete documentation with usage examples

🎯 Use Cases

For AI Assistants

  • Contextual Understanding: Access project structure and configuration
  • Guided Workflows: Use structured prompts for complex development tasks
  • Intelligent Debugging: Leverage resources and prompts for systematic problem-solving

For Development Teams

  • Enhanced Tooling: Richer integration with development environments
  • Workflow Automation: Structured approaches to common development tasks
  • Knowledge Sharing: Embedded best practices and troubleshooting guidance

For MCP Ecosystem

  • Reference Implementation: Demonstrates comprehensive MCP capability usage
  • Best Practices: Shows how to implement multiple capabilities safely
  • Future Ready: Prepared for emerging MCP features like sampling

🔮 Future Enhancements

The sampling infrastructure is prepared for future autonomous capabilities:

  • Automated Debugging: Intelligent error analysis and fix suggestions
  • Proactive Optimization: Build performance monitoring and recommendations
  • Smart Assistance: Context-aware development guidance

🚦 Client Support

  • Tools: Supported by all MCP clients ✅
  • Resources: Supported by advanced MCP clients ✅
  • Prompts: Supported by advanced MCP clients ✅
  • Sampling: Requires explicit client support (future) 🔮

This enhancement positions XcodeBuildMCP as a comprehensive MCP server that demonstrates the full potential of the Model Context Protocol while maintaining the reliability and compatibility that users expect.


💻 View my workAbout Codegen

…mpling

- Add resources module for accessing Xcode project context and metadata
  - Project info, schemes, targets, build settings
  - Simulator devices, runtimes, and device types
  - Build logs and configuration data

- Add prompts module for structured Xcode workflows
  - Debugging prompts for build failures, crashes, simulator issues
  - CI/CD prompts for GitHub Actions, Xcode Cloud setup
  - Performance optimization and testing strategy prompts
  - Project setup and migration guidance prompts

- Add sampling infrastructure for future autonomous operations
  - Prepared for intelligent error analysis and automated debugging
  - Framework for proactive build optimization suggestions
  - Requires client support and explicit user consent

- Add configuration system for capability management
  - Environment variables to enable/disable specific capabilities
  - Backward compatibility with tools-only clients
  - Flexible deployment options

- Update server capabilities to advertise new features
  - Resources with subscription and change notification support
  - Prompts with parameter validation and templates
  - Sampling preparation (disabled by default)

- Comprehensive documentation for all new capabilities
  - Detailed usage examples and configuration guides
  - Security considerations and best practices
  - Client compatibility information

- Maintain full backward compatibility with existing tool functionality
- All new features are opt-in and configurable
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codegen-sh bot commented Jun 8, 2025

I see a check failed - I'm on it! 🫡

💻 View my work

- Remove unused execSync import from autonomous.ts
- Remove unused ResourceTemplate, existsSync, readFileSync imports from project.ts
- Remove unused join, dirname imports from project.ts
- Fix unused error variables in catch blocks by removing parameters
- Rename server parameter to _server to indicate intentional non-use
- Fix formatting issues with ESLint --fix

All ESLint errors resolved, only warnings remain for TypeScript any types.
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codegen-sh bot commented Jun 8, 2025

Fixed ESLint errors in PR #59

I've successfully resolved all the ESLint errors that were causing the CI failure. Here's what I fixed:

🔧 Issues Resolved:

  • Removed unused imports (execSync, ResourceTemplate, existsSync, readFileSync, join, dirname)
  • Fixed unused error variables in catch blocks by removing unnecessary parameters
  • Renamed unused server parameter to _server to indicate intentional non-use
  • Applied ESLint auto-fixes for formatting issues

📊 Results:

  • ✅ All ESLint errors resolved (was 12 errors, now 0 errors)
  • ⚠️ Only TypeScript warnings remain (19 warnings about any types and missing return types)
  • 🚀 CI is now running with the fixes

🔗 Links:

The CI checks are currently running and should pass now that all the critical ESLint errors have been resolved. The remaining warnings are non-blocking and don't prevent the build from succeeding.

💻 View my work • React 👍 or 👎

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