Abstract: Technology is disclosed herein for a software application which identifies trouble words related to reading ability and generates a prompt for a custom reading passage based on the trouble words. The application submits the prompt to a foundation model service and receives the custom reading passage generated based on the prompt. In an implementation, the application receives parameters relating to characteristics of the custom reading passage via a user interface of the application. The parameters may include topic, age range, length, reading difficulty, and language. In some implementations, identifying the trouble words includes displaying a set of trouble words generated by a speech engine in the user interface and receiving user input including a selection of the trouble words from the set. In some implementations, the application executes in a context of a collaboration application on the user computer.