Can jutsu be cast across a barrier? Suppose Kabuto was trapped in a barrier created by the Sound Four. Could he make the coffins for Edo Tensei appear outside the barrier?
I don't think it can.
For instance: in the starting Naruto episodes, when Kakashi was trapped in a water ball by Zabuza, he could not get out until Naruto intervened (the first time it was shown that he could use his brain).

So I don't think Jutsu can pass through a Jutsu created barrier, but can break through if its weaker (kind of obvious). In other words, when Jutsu clash, it must be the battle of chakras between the barrier caster(s) and the one trapped.