Designing a Real MCP System (End-to-End, From Scratch)

We’ve covered everything: what MCP is tools, client, server communication flow guardrails Now let’s put it all together and design a real system . 🎯 The Goal Let’s build: An AI-powered e-commerce assistant Users should be able to: view orders search products cancel orders 🧩 Step 1 — Identify Capabilities Start with a simple question: What should the system be able to do? 🔧 Tools (Actions) get_user_orders(user_id, limit) search_products(query) cancel_order(order_id) 📚 Resources (Data) user_pr