Automation support does not trigger Focus

Automation support does not trigger Focus when socketed in an item with the skill.

I'm not sure this is really a bug?

Items which give you the ability to use the focus skill, do not actually state the focus skill itself is part of the mod. It simply says "while focused x thing happens".

I feel like for this to work the way you are trying to do it, it would have to be something like:

"Grants Focus while equipped"
"While focused gain x"

The mod line simply gives you the 'skill' which seems to be an untyped skill (not a spell) so even if the wording was different it probably still wouldn't work.