You'd give the command a spell and target. Having a spell would tell it what attributes/skills to apply. Having a target would allow it to calculate dINT/dMND, etc. With these options, there shouldn't be any reason why these stat couldn't be reported.

So like, /checkparam "Sleep II" <t>. And it'd run the calculations, and report your MACC, etc. If SE was feeling really generous, it could even report your hit rate. like 60% chance to land, etc.