Tool calling explained for product managers

Learn how tool calling connects language models to real world data. Understanding tool calling is essential for product managers building reliable features. Language models cannot check live databases or process payments alone. They rely on a system where the model writes a structured request and your external code executes the task. This lesson breaks down this interaction using a clear manager and runner analogy. You will learn why the model only fills out request slips while your code does the heavy lifting. We cover how to write precise tool descriptions so the model selects the correct function. You will also see why defining required inputs and placing security guards in your code is critical. In this lesson: - Model reasoning versus actual code execution - Writing clear tool descriptions for accurate selection - Defining required inputs for reliable function calls - Why security guards belong in your code U2xai Academy - ai skills for product managers.