LESSON 3.1
Tool calling fundamentals
Learn key techniques and workflows in Building AI Apps with LLMs.
31m
intermediate
18,202 students
Overview
You describe the functions, the model chooses one and supplies arguments, your code executes it. The description of each tool matters as much as the prompt.
In this lesson you will:
- Describe a tool so the model uses it correctly
- Execute the call and feed the result back
- Validate arguments before executing anything
Pro Tip
Use caching and revalidation wisely to ensure your app stays fast and data remains fresh without unnecessary requests.