Tools and Function Calling

In one line

Letting a model ask your software to do something: search, read a file, create a ticket, run a query.

Picture it

Giving the librarian a phone and a list of people they are allowed to call.

Under the hood

The model emits a structured request (a name plus JSON arguments) matching a declared schema; your code validates it, executes it, and returns the result as a message. The model never executes anything itself.