Patent attributes
In some implementations, a computing device can generate and present suggestions for filling in various data input fields presented by a graphical user interface of a host application running on the computing device. For example, when a user selects a data input field presented by the graphical user interface, the host application can cause an operating system (OS) process external to the host application on the computing device to search various hardware, software, configuration, communication, and/or event sources to obtain user information associated with the user and relevant to the input field type identifier. The user information can be presented by the OS process as suggestions on the graphical user interface without providing the user information to the host application. When the user selects a presented suggestion, the OS process can provide the user selected suggestion to the host application as input to the user selected data input field.