Was Invest Armor feat ever errated?

[Starbuck_II]

In Races of Stone/Complete Psionics, there is a feat called Invest Armor.

It increases [BASE?] armor bonus of an armor by 3.
"You can expend your psionic focus to increase the armor bonus of the armor that you're wearing by 3. "

The use is an immediate action (in reaction to being the target of an attack, it says).

It also says must use before attack roll (assuming used before an attack).

While it might have been supposed to have same duration as Energize Armor (lasts till next attack) which uses Invest as a Prereq, but it doesn't.

[shawshank]

In Races of Stone/Complete Psionics, there is a feat called Invest Armor.

It increases [BASE?] armor bonus of an armor by 3.
"You can expend your psionic focus to increase the armor bonus of the armor that you're wearing by 3. "

The use is an immediate action (in reaction to being the target of an attack, it says).

It also says must use before attack roll (assuming used before an attack).

While it might have been supposed to have same duration as Energize Armor (lasts till next attack) which uses Invest as a Prereq, but it doesn't.

Psionic Feats

Psionic feats are available only to characters and creatures with the ability to manifest powers. (In other words, they either have a power point reserve or have psi-like abilities.)

Because psionic feats are supernatural abilities—a departure from the general rule that feats do not grant supernatural abilities—they cannot be disrupted in combat (as powers can be) and generally do not provoke attacks of opportunity (except as noted in their descriptions). Supernatural abilities are not subject to power resistance and cannot be dispelled; however, they do not function in areas where psionics is suppressed, such as a null psionics field. Leaving such an area immediately allows psionic feats to be used.

Many psionic feats can be used only when you are psionically focused; others require you to expend your psionic focus to gain their benefit. Expending your psionic focus does not require an action; it is part of another action (such as using a feat). When you expend your psionic focus, it applies only to the action for which you expended it.

The bolded part should clarify. It will only apply against that one attack. Once that attack is resolved, the bonus ends.

[weckar]

Well, technically you don't expend it for an action. You expend it in response to an action by someone else.
Most PsiF expenders are direct action boosters on the users part - at the very least a roll. So I am not SURE whether that specific wording applies to this situation.

However, consider an extreme: If the effect never expires, nothing prevents you from clumsily donning all the party's armors in turn (size permitting) to give them ALL a permanent +3 bonus. No DM is going to let that one fly. So, the intuitive is that it MUST expire. As any duration when left undefined is by default a standard action, this would still result in it resolving only for this one attack (although iteratives are once again a beautiful gray area).

[shawshank]

Well, technically you don't expend it for an action. You expend it in response to an action by someone else.
Most PsiF expenders are direct action boosters on the users part - at the very least a roll. So I am not SURE whether that specific wording applies to this situation.

However, consider an extreme: If the effect never expires, nothing prevents you from clumsily donning all the party's armors in turn (size permitting) to give them ALL a permanent +3 bonus. No DM is going to let that one fly. So, the intuitive is that it MUST expire. As any duration when left undefined is by default a standard action, this would still result in it resolving only for this one attack (although iteratives are once again a beautiful gray area).

I agree it is open to interpretation. The way expending Psionic Focus is worded, you could read it "as long as your psionic focus is expended you gain this benefit" and it would be removed when you gained it back. I have seen discussion about that very thing on these forums. Hopefully, the Dreamscarred Press guys will clarify it if they ever add it their Psionic stuff, at least for use in pathfinder. Otherwise, it will never happen for 3.5 use.