Cianplan

Level 5: AI / LLM systems · L5.5 Agents, tool use & MCP

MCP in practice

Explain MCP clients, servers, tools and resources.

13 min · Pro

What you take away

  • MCP is a protocol between a host application and a tool server, not a model feature: the model only ever sees tool definitions the client assembled for it.

And 3 more inside the class, in Pro.

How the class is laid out

  1. The problem
  2. A standard socket
  3. What actually happens on one request
  4. What connecting actually grants
  5. Check your understanding