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jonasalessi
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mcp-builder

Create MCP server blueprints with Node/TypeScript and Zod validation.

Updated Mar 4, 2026
Search Tags:#typescript#mcp#best-practices#nodejs#tool-registration#server-design#mcp-sdk
One-click install
npx skills add https://github.com/jonasalessi/playground-mcp-skills --skill mcp-builder-jonasalessi
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/jonasalessi/playground-mcp-skills/tree/main/.agents/skills/mcp-builder
Command: npx skills add https://github.com/jonasalessi/playground-mcp-skills --skill mcp-builder-jonasalessi

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Creates a comprehensive blueprint for building high-quality MCP (Model Context Protocol) servers that enable LLMs to securely interact with external services through well-designed tools, improving integration reliability and developer experience.

Core Features & Use Cases

  • Clear server initialization patterns using McpServer and transport options (stdio and streamable HTTP).
  • Tool registration with Zod-based input validation, typed input/output schemas, and actionable annotations.
  • Resource and prompt patterns, error handling guidance, and end-to-end implementation examples.
  • Extensive reference material and best-practices guidance to accelerate MCP server development.

Quick Start

Create a new MCP server module, implement at least one tool with registerTool, and run the server using either stdio or streamable HTTP transport.

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 with Node and TypeScript?▼

To build an MCP server with Node and TypeScript, initialize a module using McpServer, register tools with typed schemas, and run it via stdio or streamable HTTP transport. This approach provides clear initialization patterns and actionable tool annotations for external service integration.

What is the best way to validate tool inputs in an MCP server?▼

The best way to validate tool inputs in an MCP server is using Zod-based input validation during tool registration. This method enforces typed input and output schemas, ensuring secure LLM interactions with external services and improving overall integration reliability.

When should I use stdio versus streamable HTTP transport for MCP servers?▼

Use stdio transport for local MCP server communication and streamable HTTP for network-accessible integrations. Your choice depends on the deployment context, with both options supported during server initialization to enable secure LLM interactions with external services.

Can I register multiple tools with typed schemas in a single MCP server?▼

Yes, you can register multiple tools in a single MCP server by using the registerTool method with Zod-based input validation. This allows you to define typed input and output schemas with actionable annotations for each tool individually.

Does MCP server development support resource and prompt patterns alongside tool registration?▼

Yes, MCP server development supports resource and prompt patterns alongside tool registration. The blueprint includes guidance for implementing these patterns, error handling, and end-to-end examples to accelerate high-quality server creation.

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