The simplest ADK tool is the function tool. This is an inline function that can perform a calculation or algorithm. Below is an example of the function tool in action. We wrote a function tool to get today’s date, and if we wanted to ask about bugs filed “in the last week,” the model understands what specific dates it should be adding to the request body when it calls our IT Ticket database. Read this blog to learn about all five different ADK tool types—from simple FunctionTools to third-party