LLMs & AI Engineering · Building with LLMs
Tools & function calling
LLMs only produce text. Tool calling lets the model ask your code to run a function (search, query a DB, place a calculation) and feed the result back, turning a chatbot into something that acts.
Step 1 of 6 · Overview25 min read ·
Key idea
Prereqs: Prompting & structured output, HTTP APIs. Next: Agents: plan, act, observe.Next: 1. The loop