AI Glossary

Tool use

Also called tool call, function calling

A model's ability to use outside tools (such as a search engine, a calculator, a database or running code) by writing a structured request that the surrounding software carries out and whose result the model reads. Each such request is a tool call.

See also

  • AI agent

    An AI system that works toward a goal by taking actions with tools (such as searching, running code or editing files) and choosing each next step based on the results.

  • Model Context Protocol

    An open standard for connecting AI applications to outside tools and data, so one integration works with any AI application that supports it.

  • Computer use

    The ability of an AI model to operate a computer the way a person does, by looking at the screen, moving the pointer, clicking and typing.

Source: Claude Platform documentation, Tool use with Claude (opens in a new tab)

Cite this term.

CC BY 4.0, attribution required.

This term

Orbyt Labs, Tool use (AI Glossary), Oct 18, 2026. https://www.orbytlabs.ai/orbyt-collective/glossary/tool-use

The dataset (JSON)

Orbyt Labs Glossaries (Oct 19, 2026), https://www.orbytlabs.ai/glossary#dataset

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