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mcp-builder

Design, implement, and deploy MCP servers with TypeScript or Python.

Updated Dec 9, 2025
Search Tags:#typescript#python#sdk#mcp#best-practices#tool-design#server-development
One-click install
npx skills add https://github.com/h4v1d/extension-collection-geminicli --skill mcp-builder-h4v1d
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/h4v1d/extension-collection-geminicli/tree/main/mcp-builder
Command: npx skills add https://github.com/h4v1d/extension-collection-geminicli --skill mcp-builder-h4v1d

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill provides a complete blueprint for designing, implementing, and deploying MCP (Model Context Protocol) servers using TypeScript or Python. It guides developers through tool design, input validation, error handling, transport strategies, and best practices to enable LLMs to safely interact with external services.

Core Features & Use Cases

  • Framework-agnostic guidance for MCP server construction across FastMCP (Python) and MCP SDK (TypeScript)
  • Best practices for tool design, annotations, error handling, and pagination
  • Practical workflows: from planning to evaluation and deployment, with ready-to-adapt templates

Quick Start

Start by choosing your language (Python or TypeScript), install the MCP SDK, and scaffold a minimal MCP server following the MCP Best Practices, then register a basic tool and run a local stdio 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 to let LLMs call external services?▼

To build an MCP server, you scaffold a minimal server using the TypeScript MCP SDK or Python FastMCP, register tools with input validation, and configure transport strategies. This Skill provides templates and best practices for safe LLM interaction.

What is the best way to design tools for an MCP server?▼

The best way to design MCP server tools involves adhering to MCP Best Practices by implementing proper input validation, annotations, error handling, and pagination. This ensures LLMs can safely and reliably execute external service calls.

Can I use Python to develop an MCP server or is TypeScript required?▼

You can use either Python or TypeScript to develop an MCP server. This Skill provides framework-agnostic guidance covering both the Python FastMCP ecosystem and the TypeScript MCP SDK.

How do I handle input validation and errors in MCP server development?▼

Handling input validation and errors in MCP server development requires applying best practices for tool annotations and error handling. This Skill guides you through implementing robust validation to prevent unsafe LLM interactions.

What transport strategies are available when deploying an MCP server?▼

Available transport strategies for deploying an MCP server include running a local stdio server. This Skill covers transport configuration and provides ready-to-adapt templates for evaluation and deployment workflows.

Do I need to install the MCP SDK before building an MCP server?▼

Yes, you need to install the MCP SDK before building an MCP server. The quick start workflow requires choosing your language, installing the SDK, and scaffolding a minimal server to register a basic tool.

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