mcp-builder

name	mcp-builder
description	Guide for building high-quality Model Context Protocol (MCP) servers that allow LLMs to interact with external services. Use when creating new MCP integrations, tools, or servers for Codex or other AI systems.
type	reference
version	1.2.0
category	development
related_skills	["yaml-workflow-executor","webapp-testing","git-worktree-workflow"]
capabilities	[]
requires	[]
tags	[]

Mcp Builder

Overview

This skill teaches how to build high-quality MCP servers that allow large language models to interact with external services through well-designed tools.

Quick Start

# Create and setup MCP server project
mkdir my-mcp-server && cd my-mcp-server
npm init -y
npm install @modelcontextprotocol/sdk zod
npm install -D typescript @types/node

# Create source directory
mkdir src

// src/index.ts - Minimal MCP Server
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { CallToolRequestSchema, ListToolsRequestSchema } from "@modelcontextprotocol/sdk/types.js";

const server = new Server(
  { name: "my-server", version: "1.0.0" },
  { capabilities: { tools: {} } }
);

server.setRequestHandler(ListToolsRequestSchema, async () => ({
  tools: [{
    name: "hello_world",

*See sub-skills for full details.*

## When to Use

- Creating integrations for Codex with external 
-  custom tooling  -assisted workflows
-