How do we capture the events in Tagging console?

I need to capture the events for tagging in CQ. Need to capture the tags whenever the users add/remove/change/delete tags in CQ tagging console.

I have an idea to implement a workflow & launchers to handle the event handling in tagging console. Whenever such event occur, automatically the workflow will get trigger and get the events. I don’t know how to implement such workflow. Please share any url related to this.

Also I heard that JCR listener, Is this helpful to manage event handling?

Please share if you have come across any requirement ?

Thanks

Sachin