mcp-builder

Implement and validate Python or TypeScript MCP servers with protocol-aligned tools.

Updated Mar 7, 2026
One-click install
npx skills add https://github.com/huivrotiki/antigravity-code-workspace-copy --skill mcp-builder-huivrotiki
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/huivrotiki/antigravity-code-workspace-copy/tree/main/02-Skills/mcp-builder
Command: npx skills add https://github.com/huivrotiki/antigravity-code-workspace-copy --skill mcp-builder-huivrotiki

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

MCP server developers often struggle to organize complex tool ecosystems, ensure proper validation, and align with MCP protocol standards. This Skill provides a structured blueprint to design, implement, and validate production-ready MCP servers that can expose deterministic tools to LLMs while maintaining safety, performance, and observability.

Core Features & Use Cases

  • Phase-driven guidance covering research, planning, implementation, and evaluation for both Python and Node/TypeScript MCP servers.
  • Best-practice patterns for tool registration, input validation (Pydantic/Zod), error handling, formatting, and pagination.
  • Evaluation-ready workflow including a harness guide, read-only content inspection, and 10-question XML evaluation formats.

Quick Start

Start by selecting Python or TypeScript guidance from the MCP Builder and follow Phase 1 for research, phase 2 for implementation, then validate with the provided evaluation harness.

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 that exposes tools to LLMs?

To build an MCP server, follow a phase-driven blueprint covering research, implementation, and evaluation. You articulate a concrete tool plan, implement the server in Python or TypeScript, register minimal tools, and validate input handling using the provided read-only inspection harness.

What is the best way to structure tool registration for an MCP server?

The best way to structure tool registration is applying best-practice patterns for input validation using Pydantic or Zod, ensuring proper error handling, formatting, and pagination. This maintains safety and observability while exposing deterministic tools to LLMs.

Can I use TypeScript to implement an MCP server with input validation?

Yes, you can implement an MCP server in TypeScript or Python. The implementation phase provides specific guidance for registering tools and applying schema validation using Zod for TypeScript or Pydantic for Python to ensure proper input handling.

How do I evaluate MCP server readiness before deploying tools?

You evaluate MCP server readiness using a provided evaluation harness and a 10-question XML evaluation format. This workflow includes read-only content inspection to validate tooling, documentation, and tests, allowing you to refine results before deployment.

Why do I need a structured blueprint for MCP server development?

You need a structured blueprint because developers often struggle to organize complex tool ecosystems and align with MCP protocol standards. A phase-driven approach ensures you design, implement, and validate production-ready servers while maintaining safety and performance.

Does the MCP builder support both Python and Node TypeScript servers?

Yes, the MCP builder supports both Python and Node/TypeScript servers. It provides phase-driven guidance covering research, planning, implementation, and evaluation to ensure proper validation and protocol alignment across both technology stacks.