Cache tags for all entities of a certain type I understand how you can add cache tags to a custom query for a particular entity id (or list of them) but is there a way to add cache tags that will invalidate a query if any entity of type FOO is updated/added/deleted?
You could use the module handy_cache_tags, then you would have this type of tags:

handy_cache_tags:[entity_type]
handy_cache_tags:[entity_type]:[entity_bundle]