Systems, methods, and machine-readable media for adapting content items to device operations of an endpoint media device are disclosed. A first content composite may be created by one or more processing devices for delivery in a packet stream from a content provider system via one or more networks, where the first content composite may include an adaptable content item corresponding to a set of one or more audio and/or video packets corresponding to audio and/or video content. The first content composite may be transmitted, where, consequent to delivery of the first content composite to a first endpoint media device or a second endpoint media device, the first endpoint media device or the second endpoint media device may perform one operation relating to a second content item of the first content composite, where the adaptable content item may be modified based on the second content item.