claude-task-master/tasks/task_023.txt

# Task ID: 23
# Title: Implement MCP Server Functionality for Task Master using FastMCP
# Status: pending
# Dependencies: 22
# Priority: medium
# Description: Extend Task Master to function as an MCP server by leveraging FastMCP's JavaScript/TypeScript implementation for efficient context management services.
# Details:
This task involves implementing the Model Context Protocol server capabilities within Task Master using FastMCP. The implementation should:

1. Use FastMCP to create the MCP server module (`mcp-server.ts` or equivalent)
2. Implement the required MCP endpoints using FastMCP:
   - `/context` - For retrieving and updating context
   - `/models` - For listing available models
   - `/execute` - For executing operations with context
3. Utilize FastMCP's built-in features for context management, including:
   - Efficient context storage and retrieval
   - Context windowing and truncation
   - Metadata and tagging support
4. Add authentication and authorization mechanisms using FastMCP capabilities
5. Implement error handling and response formatting as per MCP specifications
6. Configure Task Master to enable/disable MCP server functionality via FastMCP settings
7. Add documentation on using Task Master as an MCP server with FastMCP
8. Ensure compatibility with existing MCP clients by adhering to FastMCP's compliance features
9. Optimize performance using FastMCP tools, especially for context retrieval operations
10. Add logging for MCP server operations using FastMCP's logging utilities

The implementation should follow RESTful API design principles and leverage FastMCP's concurrency handling for multiple client requests. Consider using TypeScript for better type safety and integration with FastMCP[1][2].

# Test Strategy:
Testing for the MCP server functionality should include:

1. Unit tests:
   - Test each MCP endpoint handler function independently using FastMCP
   - Verify context storage and retrieval mechanisms provided by FastMCP
   - Test authentication and authorization logic
   - Validate error handling for various failure scenarios

2. Integration tests:
   - Set up a test MCP server instance using FastMCP
   - Test complete request/response cycles for each endpoint
   - Verify context persistence across multiple requests
   - Test with various payload sizes and content types

3. Compatibility tests:
   - Test with existing MCP client libraries
   - Verify compliance with the MCP specification
   - Ensure backward compatibility with any MCP versions supported by FastMCP

4. Performance tests:
   - Measure response times for context operations with various context sizes
   - Test concurrent request handling using FastMCP's concurrency tools
   - Verify memory usage remains within acceptable limits during extended operation

5. Security tests:
   - Verify authentication mechanisms cannot be bypassed
   - Test for common API vulnerabilities (injection, CSRF, etc.)

All tests should be automated and included in the CI/CD pipeline. Documentation should include examples of how to test the MCP server functionality manually using tools like curl or Postman.

# Subtasks:
## 1. Create Core MCP Server Module and Basic Structure [done]
### Dependencies: None
### Description: Create the foundation for the MCP server implementation by setting up the core module structure, configuration, and server initialization.
### Details:
Implementation steps:
1. Create a new module `mcp-server.js` with the basic server structure
2. Implement configuration options to enable/disable the MCP server
3. Set up Express.js routes for the required MCP endpoints (/context, /models, /execute)
4. Create middleware for request validation and response formatting
5. Implement basic error handling according to MCP specifications
6. Add logging infrastructure for MCP operations
7. Create initialization and shutdown procedures for the MCP server
8. Set up integration with the main Task Master application

Testing approach:
- Unit tests for configuration loading and validation
- Test server initialization and shutdown procedures
- Verify that routes are properly registered
- Test basic error handling with invalid requests

## 2. Implement Context Management System [done]
### Dependencies: 23.1
### Description: Develop a robust context management system that can efficiently store, retrieve, and manipulate context data according to the MCP specification.
### Details:
Implementation steps:
1. Design and implement data structures for context storage
2. Create methods for context creation, retrieval, updating, and deletion
3. Implement context windowing and truncation algorithms for handling size limits
4. Add support for context metadata and tagging
5. Create utilities for context serialization and deserialization
6. Implement efficient indexing for quick context lookups
7. Add support for context versioning and history
8. Develop mechanisms for context persistence (in-memory, disk-based, or database)

Testing approach:
- Unit tests for all context operations (CRUD)
- Performance tests for context retrieval with various sizes
- Test context windowing and truncation with edge cases
- Verify metadata handling and tagging functionality
- Test persistence mechanisms with simulated failures

## 3. Implement MCP Endpoints and API Handlers [done]
### Dependencies: 23.1, 23.2
### Description: Develop the complete API handlers for all required MCP endpoints, ensuring they follow the protocol specification and integrate with the context management system.
### Details:
Implementation steps:
1. Implement the `/context` endpoint for:
   - GET: retrieving existing context
   - POST: creating new context
   - PUT: updating existing context
   - DELETE: removing context
2. Implement the `/models` endpoint to list available models
3. Develop the `/execute` endpoint for performing operations with context
4. Create request validators for each endpoint
5. Implement response formatters according to MCP specifications
6. Add detailed error handling for each endpoint
7. Set up proper HTTP status codes for different scenarios
8. Implement pagination for endpoints that return lists

Testing approach:
- Unit tests for each endpoint handler
- Integration tests with mock context data
- Test various request formats and edge cases
- Verify response formats match MCP specifications
- Test error handling with invalid inputs
- Benchmark endpoint performance

## 4. Implement Authentication and Authorization System [pending]
### Dependencies: 23.1, 23.3
### Description: Create a secure authentication and authorization mechanism for MCP clients to ensure only authorized applications can access the MCP server functionality.
### Details:
Implementation steps:
1. Design authentication scheme (API keys, OAuth, JWT, etc.)
2. Implement authentication middleware for all MCP endpoints
3. Create an API key management system for client applications
4. Develop role-based access control for different operations
5. Implement rate limiting to prevent abuse
6. Add secure token validation and handling
7. Create endpoints for managing client credentials
8. Implement audit logging for authentication events

Testing approach:
- Security testing for authentication mechanisms
- Test access control with various permission levels
- Verify rate limiting functionality
- Test token validation with valid and invalid tokens
- Simulate unauthorized access attempts
- Verify audit logs contain appropriate information

## 5. Optimize Performance and Finalize Documentation [pending]
### Dependencies: 23.1, 23.2, 23.3, 23.4
### Description: Optimize the MCP server implementation for performance, especially for context retrieval operations, and create comprehensive documentation for users.
### Details:
Implementation steps:
1. Profile the MCP server to identify performance bottlenecks
2. Implement caching mechanisms for frequently accessed contexts
3. Optimize context serialization and deserialization
4. Add connection pooling for database operations (if applicable)
5. Implement request batching for bulk operations
6. Create comprehensive API documentation with examples
7. Add setup and configuration guides to the Task Master documentation
8. Create example client implementations
9. Add monitoring endpoints for server health and metrics
10. Implement graceful degradation under high load

Testing approach:
- Load testing with simulated concurrent clients
- Measure response times for various operations
- Test with large context sizes to verify performance
- Verify documentation accuracy with sample requests
- Test monitoring endpoints
- Perform stress testing to identify failure points