MCP Builder Phase 1 Deep Research And Planning

Phase 1: Deep Research and Planning (+3)

Phase 1: Deep Research and Planning

Study MCP Design Principles:

• Balance "API coverage vs. workflow tools"
• Review MCP protocol at modelcontextprotocol.io
• Learn framework specifics (TypeScript recommended)
• Analyze target API endpoints

Key Questions:

1. What actions does the user want to perform?
2. What API endpoints are available?
3. Which operations are read-only vs destructive?
4. How should errors be handled?

Phase 2: Implementation

Project Setup (TypeScript):

mkdir my-mcp-server
cd my-mcp-server
npm init -y
npm install @modelcontextprotocol/sdk zod
npm install -D typescript @types/node

tsconfig.json:

See sub-skills for full details.

Phase 3: Review and Test

Code Quality Checklist:

• No code duplication
• Full type coverage
• Proper error handling
• Input validation
• Rate limiting (if needed)

Testing with MCP Inspector:

npx @modelcontextprotocol/inspector node dist/index.js

Phase 4: Create Evaluations

Generate 10 complex, realistic test questions:

• Independent (no dependencies between questions)
• Read-only (don't modify external state)
• Verifiable (clear expected answers)