ROADMAP / BLOCK 3 / CH. 05

MCP Servers, Function Calling & Tool Use

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This chapter is complete — everything below is ready to learn right now. The video companion walks through all of it, plus the build, when it lands.

How does function calling work in LLMs?

How does the model decide when to call a tool vs respond directly?

How do you get reliable structured JSON out of an LLM?

What is MCP and what problem does it solve?

How does MCP differ from regular function calling?

Have you built an MCP server?