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AI & Machine Learning · Foundational

Tool Use

A model's ability to request execution of external functions, APIs or programs and use their results.

Definition

Developers define tools with names, descriptions and input schemas. The model decides when to call a tool and emits structured arguments; the application or platform executes it and returns the result. Tool use enables real-time data access, calculations and actions.

Exam tip

The model does not execute client tools itself; your application runs them and returns results.

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