Do Powers gained from Class Feats count as Class Feats / Class Abilities for the purposes of interactions?

[Elleth]

As an example, I would like to know if monastic weaponry works with ki strike.

[Fuzzypaws]

Monastic Weaponry specifically says that the weapons work with any of your feats or abilities that apply to unarmed strikes. So yes, Ki strike would work.

As for whether there is a broader general statement anywhere in the book, I don't believe so.