Tool use

When an AI model does more than produce text by calling on outside tools, such as searching a database, looking up a record, running a calculation, or sending a request to another system. Tool use is what lets a model act in the real world rather than just describe it, and it is the core of how agents get things done. For a healthcare audience this is where capability and risk both rise sharply: the moment a model can reach into a real system, what it is allowed to touch, and what it is blocked from touching, becomes a safety question, not just a feature.

Terms like this come up in real clinical scenarios across the HelloAI courses: bite-sized modules with verifiable certificates. An account takes one minute, no password needed.