Tool Use
Category: Agents“TOOL yooss”
When an AI calls outside software — a calculator, calendar, search, or database — to do something it can't do by writing text alone.
Lesson #6: The Agentic Era: Agents That Do the Work →A carpenter reaching for the right tool instead of using bare hands.
The AI checks a live weather service instead of guessing tomorrow's forecast.
It pulls current lumber prices from the supplier's system before writing your estimate.
It looks up a customer's real order history in your database before answering them.
Tool use is what turns confident guessing into answers backed by real, current data.
Tool use is an AI calling real software to get real answers.
List two systems you'd want an AI to check before it answers a customer question.
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Related terms
Picked automatically from the same category and the ideas this term shares.
Hand-picked pair
AI that can take a goal, decide the steps on its own, and carry them out instead of only answering one question at a time.
Hand-picked pair
A method where the AI looks up your real documents before answering, instead of guessing.
Hand-picked pair
A doorway that lets two pieces of software talk to each other.
Same category: Agents
Handing a specific piece of work to the agent — or to another agent — best suited to finish it.
Same category: Agents
The repeating cycle an agent runs: look at the situation, decide one action, do it, check the result, and go again.
Same category: Agents
The step where an AI decides the order of its actions before it starts working, and updates that order as things change.