A file system or other system that manages information entities includes a
sub-system to store one or more tokens, as well as a token action log to
associate each token with a customizable set of one or more actions,
where each token is to trigger the associated set of one or more actions
in response to accompanying a file-system/information entity that
experiences an event. The file system also includes a token log manager,
which initiates the appropriate actions corresponding to file-system
entities that experience an event.