Feature request: Ability to tag sub agents

Really loving the new sub agent feature! I'm using it frequently already. I already have a ton of sub agents, so many that it gets hard to remember all of them. While i have some docs that are basically smart docs that auto route to correct agents so i dont always have to remember them, it would still be nice to be able to somehow autofill agent names by @'ing them in some way like we do with files or slash commands

Also I realize the /agents command shows agents, but its often nice to reference agents in the middle of a prompt, hence this request