mcp-builder

Design and implement MCP servers in Python or TypeScript.

2|Updated Mar 25, 2026
One-click install
npx skills add https://github.com/billlzzz26/note-taker-convex-ai-convex --skill mcp-builder-billlzzz26
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/billlzzz26/note-taker-convex-ai-convex/tree/main/.kilocode/skills/mcp-builder
Command: npx skills add https://github.com/billlzzz26/note-taker-convex-ai-convex --skill mcp-builder-billlzzz26

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

MCP servers are often hard to design and implement with consistent quality. This skill provides a structured, phase-driven blueprint for building Model Context Protocol servers, including naming conventions, tooling patterns, error handling, and testing practices to ensure reliable integration with external services.

Core Features & Use Cases

  • Phase-driven development covering Phase 1 (Research and Planning) through Phase 4 (Evaluations) to guide both Python (FastMCP) and Node/TypeScript (MCP SDK) implementations.
  • Tool design and implementation patterns with strict input validation (Pydantic/ Zod), clear docstrings, and robust error handling, pagination, and multi-format responses.
  • Comprehensive guidelines on transport options (stdio, SSE, HTTP), tool annotations, and code quality checks to support scalable MCP servers and automated evaluations.

Quick Start

Study the MCP Builder guide and start by outlining your MCP server plan using Phase 1 activities before implementing core tools in Python or TypeScript.

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 with proper validation and error handling?

To build a robust MCP server, follow a phase-driven development process from research to evaluation. This enforces strict input validation using Pydantic or Zod, robust error handling, pagination, and comprehensive testing standards for reliable external API integration.

What is the best way to design Model Context Protocol servers for external APIs?

The best way to design Model Context Protocol servers is using a structured blueprint that covers tool design, transport options like stdio and SSE, and code quality checks. This ensures scalable servers with clear docstrings and automated evaluations.

Can I use FastMCP and the MCP SDK to implement server tools in Python and TypeScript?

Yes, you can implement server tools using Python with FastMCP or Node/TypeScript with the MCP SDK. The process provides specific patterns for both environments, ensuring consistent naming conventions, input validation, and multi-format responses.

What transport options should I consider when building MCP servers?

When building MCP servers, you should consider stdio, SSE, and HTTP transport options. Choosing the right transport depends on your integration needs, and comprehensive guidelines help support scalable server design and automated evaluations.

Why does my MCP server implementation lack consistent quality and testing standards?

Your MCP server lacks consistent quality because it misses a structured, phase-driven blueprint. Implementing strict tool design patterns, input validation, and comprehensive testing standards ensures reliable integration with external services.

Do I need Pydantic or Zod for input validation in Model Context Protocol servers?

Yes, you need Pydantic for Python or Zod for TypeScript to enforce strict input validation in Model Context Protocol servers. This validation is critical for robust error handling and ensuring reliable multi-format API responses.