Silver chain smuggler before after you act powers

[Anthony Williams 82]

We're playing chains of silver, so all 4 characters are at the same location. The first power for silver chain smuggler says before you act each character at your lication must summon and encounter him. I presume that only the character whose turn it is has to follow this instruction, otherwise we have an infinite cascade of henchmen.

However, what about the second and third powers on the hard: does each character have to do the "before you act" check to avoid poison damage, and then do the "after you act" instruction to examine the location deck?

[Scripted]

Summoned creatures can't summon themselves again, which prevents the infinite cascade of henchmen.

But you will have to do the other check and examine effects for each player.

[Malcolm_Reynolds]

The first power for Silver Chain Smuggler says before you act each other character at your location must summon and encounter him.

Summoned cards cannot summon copies of themselves or the card that summoned them.