# Implementation Plan
- [ ] 1. Create DXT type definitions and interfaces
- Define TypeScript interfaces for DXT manifest, capabilities, and parameters
- Create configuration types for DXT-specific settings
- Add validation schemas using Zod for type safety
- _Requirements: 1.3, 2.2, 4.1_
- [ ] 2. Implement DXT configuration management
- Create DXTConfigManager class to handle DXT-specific configuration
- Add configuration loading from environment variables and config files
- Implement default metadata extraction from package.json
- Write unit tests for configuration management
- _Requirements: 2.1, 2.2, 2.3, 2.4_
- [ ] 3. Build core DXT manifest generator
- Create DXTManifestGenerator class with tool-to-capability conversion
- Implement MCP tool schema to DXT parameter mapping logic
- Add manifest structure generation with metadata
- Write unit tests for manifest generation logic
- _Requirements: 1.1, 1.2, 5.1, 5.2, 5.3_
- [ ] 4. Implement DXT manifest validation
- Create DXTValidator class for manifest validation
- Add validation rules for required fields and structure
- Implement capability-level validation logic
- Write unit tests for validation scenarios
- _Requirements: 4.1, 4.2, 4.3, 4.4_
- [ ] 5. Add HTTP endpoint handler for manifest serving
- Create DXTEndpointHandler class for HTTP request handling
- Implement GET /dxt/manifest endpoint with CORS support
- Add error handling and response formatting
- Write unit tests for endpoint behavior
- _Requirements: 3.1, 3.2, 3.3, 3.4_
- [ ] 6. Integrate DXT functionality with existing server
- Modify SimplifiedMCPServer to initialize DXT components
- Add optional HTTP server setup for DXT endpoints
- Integrate manifest generation with tool registry changes
- Ensure backward compatibility with existing MCP functionality
- _Requirements: 1.1, 1.4, 3.1_
- [ ] 7. Add manifest file persistence and caching
- Implement manifest file writing and reading operations
- Add caching mechanism for generated manifests
- Handle file system errors and recovery
- Write unit tests for file operations
- _Requirements: 1.4, 3.3_
- [ ] 8. Create comprehensive integration tests
- Write end-to-end tests for manifest generation from tool registry
- Test HTTP endpoint serving with various scenarios
- Validate generated manifests against DXT specification
- Test integration with existing MCP server functionality
- _Requirements: 1.1, 1.2, 3.1, 4.1_
- [ ] 9. Add error handling and logging
- Implement comprehensive error handling for all DXT operations
- Add specific error types for DXT-related failures
- Integrate with existing logging system
- Write tests for error scenarios and recovery
- _Requirements: 4.2, 4.3, 4.4_
- [ ] 10. Update server startup and configuration
- Modify server initialization to include DXT setup
- Add command-line options for DXT configuration
- Update configuration validation to include DXT settings
- Ensure graceful degradation when DXT features are disabled
- _Requirements: 2.1, 2.2, 2.3_
