1. A method of capturing event information, the method comprising: a computer identifying a first trace output, generated during a first execution of a first program, that is annotated with an indication of a first pattern of logged events and one or more second programs that identify additional logged events; the computer identifying in a second trace output, generated during a second execution of the first program, the first pattern of logged events; and responsive to the identification of the first pattern of logged events in the second trace output, the computer executing the one or more second programs to gather one or more additional logged events that are discoverable during the second execution of the first program, wherein the one or more additional logged events are not included in the first trace output.