Abstract: Techniques for selecting a skill, to respond to a user input, using skill rankings are described. A skill's ranking may be determined in different manners. In one example, a skill's ranking may be determined based on a number of different users inputting commands that invoke the skill over a period of time. In another example, a skill's ranking may be determined based on a number of different devices that capture user inputs that invoke the skill over a period of time. A system may determine whether to automatically enable a skill (e.g., without user input received after the original user input), or ask the user whether the skill should be enabled, based on the skill's ranking. Moreover, a system may use a skill's ranking to determine whether to interact with a user, to enable the skill, using a graphical user interface or a voice user interface.

Abstract: Functionality is disclosed herein for changing a user experience using application events. Events that occur while an application is executing are provided to an application service. The events may be stored on the computing device executing the application before the events are provided to the application service. The application service uses the events to generate a plan that includes data identifying one or more actions for the application to perform. The events used to generate the plan may include events received from other users who also interact with the application. The plan is used by an application to select one or more actions to perform to move the user interacting with the application closer to a goal state. The plan may be periodically updated.

Abstract: Functionality is disclosed herein for changing a user experience using application events. Events that occur while an application is executing are provided to an application service. The events may be stored on the computing device executing the application before the events are provided to the application service. The application service uses the events to generate a plan that includes data identifying one or more actions for the application to perform. The events used to generate the plan may include events received from other users who also interact with the application. The plan is used by an application to select one or more actions to perform to move the user interacting with the application closer to a goal state. The plan may be periodically updated.