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JonathanMitchell1234
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mcp-builder

Guide developers in creating MCP servers with Python FastMCP or Node/TypeScript MCP SDK.

Updated Feb 27, 2026
Search Tags:#tooling#api development#mcp#developer guide#llm integration#server implementation
One-click install
npx skills add https://github.com/JonathanMitchell1234/Stock-Swing-Trading-Bot --skill mcp-builder-jonathanmitchell1234
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/JonathanMitchell1234/Stock-Swing-Trading-Bot/tree/main/.agents/skills/mcp-builder
Command: npx skills add https://github.com/JonathanMitchell1234/Stock-Swing-Trading-Bot --skill mcp-builder-jonathanmitchell1234

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires anthropic, mcp, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill provides a comprehensive guide for developers to create high-quality MCP (Model Context Protocol) servers, enabling Large Language Models (LLMs) to interact with external services through well-defined tools.

Core Features & Use Cases

  • MCP Server Development: Learn best practices for building MCP servers in Python (FastMCP) or Node/TypeScript (MCP SDK).
  • Tool Implementation: Understand how to define input/output schemas, descriptions, and annotations for discoverable and usable tools.
  • Evaluation Framework: Learn how to create rigorous evaluations to test the effectiveness of your MCP server.
  • Use Case: You need to build an MCP server that allows an LLM to manage GitHub repositories by creating issues, listing pull requests, and fetching commit history. This guide will walk you through the entire process.

Quick Start

Use the mcp-builder skill to learn how to implement a Node.js MCP server.

Frequently Asked Questions about mcp-builder

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build an MCP server for LLM integration?▼

To build an MCP server for LLM integration, use the FastMCP framework for Python or the MCP SDK for Node/TypeScript. This guide provides implementation best practices for defining tools, validating schemas, and ensuring robust LLM interaction.

What is the Model Context Protocol used for?▼

The Model Context Protocol (MCP) is used to enable Large Language Models to interact with external services through well-defined tools. It provides a standardized way for LLMs to access and manipulate external data.

Can I use TypeScript to implement an MCP server?▼

Yes, you can implement an MCP server using TypeScript with the Node MCP SDK. The guide covers server implementation in both Node/TypeScript and Python, allowing you to choose your preferred development environment.

How do I validate tool schemas for an MCP server?▼

Validate tool schemas for an MCP server using Pydantic for Python implementations and Zod for Node/TypeScript. Proper schema validation ensures discoverability, usability, and robustness in LLM-tool interactions.

What's the best way to evaluate MCP server effectiveness?▼

The best way to evaluate MCP server effectiveness is to create rigorous evaluations using the provided framework. Testing ensures your tools are discoverable and correctly processed by the LLM during external service interactions.

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