If a character with the Equipment Trick: Rope feat (and proficiency in whips) were to pull rope from a Robe of Infinite Twine, what is the action? Is it a standard action (usually the case when activating a magic item), or the equivalent of drawing a weapon (either a move, part of a move, or free)?
Lash (Weapon Proficiency [whip]): You can use a length of rope as a whip at no penalty. The piece of rope that is used as a whip must be 10 feet long—length in excess of this must remain coiled or otherwise unused at your feet or side.
The wearer can draw up to 30 feet of twine or up to 10 feet of hemp rope per round from the robe without harming it.
Bolding mine for emphasis.
So, is drawing a 10 foot length of rope from the robe for use as a whip considered drawing a weapon or activating a magic item?
I would think you are activating a magic item, which you then happen to use as a weapon, so it would be a standard action, I believe.
Of course, there's always:
As an immediate action, the wearer can draw up to 150 feet of twine or 50 feet of rope from the robe, but this gives the robe the broken condition and suppresses its powers until it is repaired.
Not bad if a party member can cast mend on it.