mcp-builder

Build MCP servers with FastMCP or TypeScript MCP SDK following official best practices.

302|22|Updated Feb 12, 2026
One-click install
npx skills add https://github.com/JetBrains/skills --skill mcp-builder-jetbrains
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/JetBrains/skills/tree/main/mcp-builder
Command: npx skills add https://github.com/JetBrains/skills --skill mcp-builder-jetbrains

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill provides comprehensive guidance and scaffolding for building robust MCP servers that let LLMs interact with external services through well-designed tools, enabling scalable API integration and automation across Python (FastMCP) and Node/TypeScript (MCP SDK).

Core Features & Use Cases

  • Best practices for server and tool naming, transport selection, error handling, and pagination.
  • Step-by-step guidance for implementing core infrastructure (API clients, error handling, response formatting) and tooling (tool registration, input/output schemas, annotations).
  • Real-world use cases include exposing resources, registering tools, building end-to-end MCP workflows, and evaluating server capabilities.

Quick Start

Create a new MCP server project using the recommended SDK (Python or TypeScript), then register a simple tool that returns a static message to verify end-to-end tool invocation.

Frequently Asked Questions about mcp-builder

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

FAQPage Schema
How do I build a robust MCP server for AI tool integration?

To build a robust MCP server, follow official best practices for tool registration, transport selection, and error handling using either the Python FastMCP or TypeScript MCP SDK. Apply architectural guidelines to ensure scalable API integration and validate inputs using Pydantic or Zod.

What are the best practices for MCP tool registration and error handling?

Best practices for MCP tool registration involve using the MCP SDK to define input and output schemas, validating inputs with Zod or Pydantic, and implementing comprehensive error handling. Responses should support both JSON and Markdown formats with proper pagination.

Can I use Python FastMCP and TypeScript MCP SDK to expose external resources?

Yes, you can use Python FastMCP and TypeScript MCP SDK to expose external resources and register tools. These SDKs support building end-to-end MCP workflows that let LLMs interact with external services through well-designed tools and scalable API integration.

How do I validate inputs and secure an MCP server?

Secure an MCP server by validating inputs with Zod or Pydantic and integrating security considerations like authentication and error handling. Ensure tools are registered via the MCP SDK with proper annotations and that response formatting supports JSON and Markdown.

Does this MCP server scaffolding support pagination and multiple response formats?

Yes, MCP server scaffolding supports pagination and multiple response formats including JSON and Markdown. It provides step-by-step guidance for implementing core infrastructure, API clients, and response formatting to ensure reliable LLM interactions.

Why does my MCP server need transport selection and specific naming conventions?

Transport selection and specific naming conventions are needed to ensure reliable MCP server communication and tool discovery. Following these architectural guidelines enables scalable API integration, proper tool registration, and consistent error handling across Python and TypeScript implementations.