halacha - Can a shaliach assemble your mishloach manot for you?

I know that a shaliach (messenger) can deliver your mishloach manot. But can the shaliach also assemble it for you (under instruction for what to put in), and you'll still fulfill the mitzvah?

Here, you aren't handling it at all, so i'm not sure if it counts as coming from you.

If it does count, what if you just say, "make some mishloach manot for this person in my name", without specifying anything that goes in it?

Question was inspired by the fact that someone did ask us to do this over Purim. However, i'm pretty sure they fulfilled the mitzvah even without the one we made.