It is executed as soon as a new asset is found during the indexing process of a project using the node.
By default, this trigger will register any asset in the same way it would be added by using a node.
This will be done independently, whether there is a stream in place or not.
This stream can be executed as a client (connected user) or server stream and cannot be assigned via a profile to another client.
Consequently, this means the stream cannot exceed a runtime of 60 seconds.