name: mcp-builder
description: Generate MCP (Model Context Protocol) server scaffolding. Use when creating new MCP servers for extending Claude capabilities with custom tools, database queries, file operations, or API integrations.

MCP Builder

Generate MCP (Model Context Protocol) servers and clients.

Overview

Creates MCP server scaffolding with TypeScript, supporting stdio and SSE transports, with tool templates for common operations.

Quick Start

/mcp-builder "Create MCP server for LearnFlow progress tracking"

Generated Structure

mcp-server/
├── package.json
├── tsconfig.json
├── src/
│   ├── index.ts
│   ├── server.ts
│   └── tools/
│       ├── tool1.ts
│       └── tool2.ts
├── test/
│   └── server.test.ts
└── README.md

Tool Templates

MCP Code Execution Pattern

Built-in token efficiency by default:

// ❌ Inefficient
async function getAllProgress() {
  return await db.progress.findMany();
}

// ✅ Efficient
async function getProgressSummary(studentId: string) {
  const data = await db.progress.findMany({ where: { studentId } });
  return {
    totalTopics: data.length,
    mastered: data.filter(p => p.mastery >= 90).length
  };
}

Scripts

Run scripts/init.py <server-name> to generate MCP server template.