mcp-builder

Design, implement, and validate MCP servers exposing tools to LLMs.

38|6|Updated Aug 4, 2025
One-click install
npx skills add https://github.com/hacket/AICodingGuide --skill mcp-builder-hacket
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/hacket/AICodingGuide/tree/main/.claude/skills/mcp-builder
Command: npx skills add https://github.com/hacket/AICodingGuide --skill mcp-builder-hacket

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

MCP server development for AI agents can be complex and error-prone. This skill provides a structured path, tooling guidance, and templates to design, implement, and evaluate Model Context Protocol servers that expose tools to LLMs, ensuring consistency and safety across languages and transports.

Core Features & Use Cases

  • Standardized frontmatter and discovery metadata for MCP server directories
  • Python (FastMCP) and Node/TypeScript (MCP SDK) tool development patterns
  • Phase-driven workflow (planning, implementation, review, evaluation) to accelerate delivery
  • Evaluation harness and best-practices references to ensure quality and security

Quick Start

Study the MCP Builder guidance and follow the Phase 1–4 workflow to scaffold and validate a new MCP server in your project.

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 expose tools to LLMs?

To build an MCP server, follow a phase-driven workflow covering planning, implementation, review, and evaluation to scaffold and validate tool designs using Python or TypeScript SDKs.

What is the best way to implement MCP servers in Python and TypeScript?

The best way to implement MCP servers is using Python with FastMCP or Node/TypeScript with the MCP SDK, applying standardized patterns for input validation, error handling, and pagination.

Does MCP server development support SSE and HTTP transports?

Yes, MCP server development supports scalable and secure tool designs across stdio, SSE, and HTTP transports to ensure safe and compliant deployments for LLMs.

How do I validate input and handle errors in MCP tool development?

Validate input and handle errors in MCP tool development by enforcing rigorous standards and using an evaluation harness to ensure quality, security, and compliance across deployments.

Can I use a structured workflow to evaluate MCP server quality?

Yes, you can use a phase-driven workflow with an evaluation harness and best-practices references to evaluate MCP server quality, ensuring consistency and safety across languages and transports.