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Implementation Plan for MCP-CPP Components

1. HTTP/SSE Transport Completion

Phase 1: Core Transport Enhancements (2 weeks)

  • Implement streaming response support via SSE
  • Add authentication mechanisms (OAuth, API keys, custom headers)
  • Implement compression support for large messages
  • Add proxy configuration support
  • Enhance reconnection logic with exponential backoff

Phase 2: Advanced Features & Testing (2 weeks)

  • Implement cancelation of in-flight requests
  • Add progress reporting and tracking
  • Create comprehensive unit tests covering:
    • Connection handling
    • Error recovery
    • Message parsing edge cases
    • Reconnection behavior
    • Authentication flows
  • Implement performance benchmarks

Deliverables

  • Complete HTTP/SSE transport with streaming capabilities
  • Comprehensive test suite
  • Documentation for all transport configuration options

2. Session Implementation Finalization

Phase 1: Base Session Enhancements (2 weeks)

  • Implement graceful session lifecycle management
  • Add session resumption capabilities
  • Enhance logging for debugging
  • Implement rate limiting and flow control
  • Add support for streaming requests/responses

Phase 2: ClientSession Improvements (1 week)

  • Add caching for tool/resource/prompt listings
  • Implement subscription to resource updates
  • Add automatic reconnection logic
  • Implement progress reporting for long-running operations
  • Add schema validation for server responses

Phase 3: ServerSession Completion (2 weeks) -- CURRENTLY: HERE

  • Enhance validation of incoming requests
  • Implement streaming response support
  • Add resource subscription handling
  • Create mechanism for server-initiated notifications
  • Implement cancellation of in-progress operations

Deliverables

  • Complete base Session implementation
  • Feature-rich ClientSession and ServerSession
  • Documentation for session configuration and usage patterns
  • Unit tests for all session components

3. Tool/Resource/Prompt Implementation

Phase 1: Registration Framework (2 weeks)

  • Implement type-safe tool registration with automatic schema generation
  • Create resource handler registration with content-type support
  • Develop prompt template registration with parameter validation
  • Add support for dynamic capability addition/removal

Phase 2: Tool Implementation (2 weeks)

  • Create typed wrapper methods for strongly-typed tool calls
  • Implement streaming tool execution and progress reporting
  • Add client-side validation before sending requests
  • Develop convenience functions for common tool usage patterns

Phase 3: Resource Implementation (2 weeks)

  • Implement resource content streaming for large resources
  • Create subscription model for resource updates
  • Add helper methods for resource content parsing
  • Develop URI pattern matching for resource access

Phase 4: Prompt Implementation (1 week)

  • Implement template substitution for prompt parameters
  • Add support for dynamic prompt generation
  • Create integration with resource system for content embedding
  • Develop typed results for prompt execution

Deliverables

  • Complete tool, resource, and prompt registration APIs
  • Client and server implementations for all capabilities
  • Documentation and examples for each feature
  • Comprehensive test suite

4. Integration and Testing

Phase 1: Component Integration (1 week)

  • Integrate all components to ensure seamless operation
  • Verify correct interaction between transport, session, and capability layers
  • Ensure thread safety across all components
  • Validate error propagation through all layers

Phase 2: Comprehensive Testing (2 weeks)

  • Develop unit tests for all components
  • Create integration tests for client-server interaction
  • Implement performance tests for throughput and latency
  • Add stress tests for connection handling under load

Phase 3: Documentation and Examples (1 week)

  • Complete API documentation with Doxygen
  • Create user guides for server and client implementation
  • Develop examples for each capability (tools, resources, prompts)
  • Document configuration options and best practices

Deliverables

  • Fully integrated MCP-CPP implementation
  • Comprehensive test suite
  • Complete documentation and examples

Implementation Timeline (Total: 18 weeks)

  1. HTTP/SSE Transport: Weeks 1-4
  2. Session Implementation: Weeks 5-9
  3. Tool/Resource/Prompt Implementation: Weeks 10-16
  4. Integration and Testing: Weeks 17-18

Key Milestones

  1. Week 4: Complete HTTP/SSE transport with streaming support
  2. Week 9: Finalized session implementations
  3. Week 16: Complete tool, resource, and prompt capabilities
  4. Week 18: Full MCP-CPP implementation with documentation

Resource Requirements

  • 2-3 C++ developers with experience in networking and async programming
  • 1 QA engineer for testing
  • Access to testing infrastructure for cross-platform validation
  • Development environments for all target platforms (Linux, Windows, macOS)

Risk Management

  1. Libcurl Integration: May require adapters for complex scenarios

    • Mitigation: Create abstraction layer for HTTP client implementation

  2. Threading Model: Complex async operations could introduce race conditions

    • Mitigation: Thorough thread safety review and stress testing

  3. Schema Validation: Performance impact of runtime validation

    • Mitigation: Optional validation with compile-time checking where possible

  4. Cross-Platform Compatibility: Different behavior across platforms

    • Mitigation: Platform-specific tests and conditional compilation