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mcp-builder

Guide creation of MCP servers in TypeScript or Python with schemas and evaluations.

1|Updated Mar 21, 2026
Search Tags:#typescript#python#mcp#tool design#llm integration#type-safe schemas#server evaluation
One-click install
npx skills add https://github.com/dashkan/pivox --skill mcp-builder-dashkan
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mcp-builder
Source: https://github.com/dashkan/pivox/tree/main/.agents/skills/mcp-builder
Command: npx skills add https://github.com/dashkan/pivox --skill mcp-builder-dashkan

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

Building an MCP server is easy to start but hard to finish well, because LLMs need clear tool contracts, reliable schemas, actionable errors, and solid evaluation coverage to use your tools effectively.

Core Features & Use Cases

  • Tool and workflow design guidance: Choose between broad API coverage and higher-level workflow tools so agents can complete real tasks efficiently.
  • Protocol- and SDK-aligned implementation steps: Plan transports, study the MCP spec, and implement tools with correct naming, schemas, and annotations.
  • Quality and evaluation strategy: Review and test servers with MCP Inspector and create read-only XML evaluations that stress real multi-step tool usage.

Quick Start

Ask an LLM to help you draft your first MCP tool set by following the guide sections: plan tools and schemas, implement tools with readOnly/idempotent annotations, and then write a small evaluation XML to verify multi-hop correctness.

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 LLMs can reliably use for real-world tasks?▼

Plan tools and schemas first, implement tools with correct naming and readOnly or idempotent annotations using the TypeScript or Python SDK, then write a small read-only XML evaluation to verify multi-hop tool correctness.

What is the best way to design MCP tools for external API integrations?▼

The best way to design MCP tools for external APIs is choosing between broad API coverage and higher-level workflow tools, ensuring agents can complete real tasks efficiently through structured I/O and deterministic scenarios.

How do I evaluate and test an MCP server for multi-step tool usage?▼

You evaluate an MCP server by reviewing it with the MCP Inspector and creating read-only XML evaluations that stress test real multi-step tool usage to verify multi-hop correctness.

Does the Model Context Protocol SDK support both TypeScript and Python?▼

Yes, the Model Context Protocol SDK supports both TypeScript and Python, allowing you to implement tools with correct naming, schemas, and annotations across either language for external service integrations.

Why does my LLM fail to use my MCP tools effectively?▼

An LLM fails to use MCP tools effectively when the server lacks clear tool contracts, reliable type-safe schemas, and actionable error messaging, preventing the model from understanding the structured I/O.

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