Low-Level Discovery (LLD) trigger prototypes currently inherit tags from items, but not from templates. For example, even if a template defines tags like "target" and "class", these tags are not passed down to triggers generated from the prototype.

In contrast, ordinary triggers do inherit tags from their templates. As a result, triggers on hosts may vary — some include the "target" tag, while others don't — depending on whether they were generated from LLD.

This inconsistency reduces the usefulness of tags like "target", which can be extremely valuable for automated alert routing, especially when there is no external source of team responsibility data. Unfortunately, events generated from trigger prototypes break this mechanism by missing those key tags.

There is a screenshot of two tag set on the same host, describing this problem.