1. A method of operating a digital assistant, comprising: at a device having one or more processors and memory: providing a list of notification items, the list including a plurality of notification items, wherein each respective one of the plurality of notification items is associated with a respective urgency value; prior to outputting a first notification item of the plurality of notification items: detecting an information item received from an external device; determining whether the information item is relevant to an urgency value of the first notification item of the plurality of notification items; and upon determining that the information item is relevant to the urgency value of the first notification item, adjusting the urgency value of the first notification item and incorporating content from the information item into the first notification item; determining whether the adjusted urgency value of the first notification item satisfies a predetermined threshold; and upon determining that the adjusted urgency value satisfies the predetermined threshold, providing the first notification item to a user, the first notification item including the incorporated content from the information item.
5. The method of claim 1 , further comprising establishing the predetermined threshold in accordance with a user setting of the device.