MCP Server Factory

MCP Server Factory

A Java-based Model Context Protocol (MCP) server designed to help understand and build other MCP servers.

Project Overview

This project serves as both a learning tool and a guide for building MCP servers. It focuses on providing:

1. Understanding of MCP Components:

   • Tools (executable functions that perform actions)
   • Resources (data sources that provide information)
   • Prompts (structured templates that generate responses)

2. Templates and Best Practices for building MCP servers

Features

1. Tools Section:

   • explain_concept - Provides detailed explanations of MCP concepts (tool, resource, prompt, server, client)
   • Task Planner Tools:
     • code_cleanup_planner - Generates a task plan for code cleanup objectives
     • feature_implementation_planner - Generates a task plan for feature implementation objectives
     • general_task_planner - Generates a task plan for general objectives
     • local_mcp_deployment_planner - Generates a task plan for deploying local MCP servers with critical clean and test steps that abort deployment on failure

2. Resources Section:

   • mcp://factory/documentation/{topic} - Documentation on MCP topics (getting-started, best-practices, troubleshooting)

3. Prompts Section:

   • tool_implementation_guide - Step-by-step guide for implementing MCP tools in different languages

Architecture

The MCP Server Factory is built using:

• Java with Spring Framework (not Spring Boot)
• log4j2 for logging implementation
• Maven for build management

Following the design principles:

• KISS (Keep It Simple, Stupid)
• DRY (Don't Repeat Yourself)
• YAGNI (You Aren't Gonna Need It)
• SOLID (Single responsibility, Open-closed, Liskov substitution, Interface segregation, Dependency inversion)

Project Structure

• src/main/java/user/jakecarr/ - Main source code

  • .../config/ - Spring configuration
  • .../main/ - Classes with main methods
  • .../model/ - Domain models and interfaces
  • .../model/impl/ - Implementations of MCP components
  • .../service/ - Business logic and services

• docs/api/ - API documentation

  • prompts.md - Documentation for supported prompts
  • resources.md - Documentation for supported resources
  • tools.md - Documentation for supported tools

Code Quality

The codebase follows high-quality standards:

• Well-structured code with clear separation of concerns
• Comprehensive documentation with Javadoc comments for all classes and methods
• Modular design with abstract base classes and interfaces
• Consistent error handling with proper logging
• Maintainable architecture with extracted methods and helper functions
• Clean code practices including:
  • Descriptive naming conventions
  • Single responsibility principle
  • DRY (Don't Repeat Yourself) principle
  • Proper encapsulation

Building and Running

Prerequisites

• Java 21 or higher
• Maven 3.6 or higher
• MCP Java SDK 0.8.1 (located at C:/Users/jayes/vscode/java-sdk-0.8.1/java-sdk-0.8.1.jar)

Building the Project

# Clone the repository
git clone https://github.com/yourusername/mcp-server-factory.git
cd mcp-server-factory

# Build the project
mvn clean package

Running the Server

# Run the server
java -jar target/mcp-server-factory-1.0-SNAPSHOT-jar-with-dependencies.jar

Running the Tests

# Run the tests
mvn test

Development Guidelines

• Core business logic must not depend on Spring
• Spring annotations only in the config package
• No mocks in src/main/java
• No recursion
• Tests should include timeouts

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Run the tests
5. Submit a pull request

License

This project is licensed under the MIT License - see the LICENSE file for details.