RAG & Agents
Tool Calling
Exposing typed functions the model can invoke, with a JSON schema describing parameters.
Why interviewers ask about it
A tool description is a prompt. Say what it does, when to use it and when NOT to. Return errors as observations so the agent self-corrects, and shape results aggressively.
Related terms
This term is part of the free AI/ML Engineer interview preparation module - browse the full glossary for every definition.