It would be less error prone to offer a way to register a subdomain and add specific related notifications.

For example, an application could send notifications when it has performed a task. The application "Squid' could for instance send a notification when all monitored application installations finished successfully or unsuccessfully.

com.simara.squid.successfulInstallation
com.simara.squid.failedInstallation

Thus, it would be error prone and more painful to add the overall notification name when the reverse domain is known. If the app could offer implementation for the most required domains, it should also be possible to add custom ones.

bugle add --squid -n successfulInstallation -s /path/to/script -f observations.plist

which will be equivalent to

bugle add -n com.simara.squid.successfulInstallation -s /path/to/script -f observations.plist