Disclosed are various embodiments for delegated evaluation of a decision tree. A client device receives an expression and a plurality of responses from a second computing device, the expression providing an evaluation of a user input and each of the plurality of responses representing a potential response for the first computing device to provide to the user input. The client device then evaluates the user input with the expression received from the second computing device to determine a user intent. The client device then selects a response to the user intent from the plurality of responses and renders the response within a user interface.