The fact that I wrote this Effect grants the power of premonitions or to hear the voices of spirits would contradict the limitation of "no divination", and the Ability needs to be changed so that is is effective in its own right, but less effective than a Perceive Effect.
I have no patented solution to this. You might do something around clarity of answer (and of course Perceive will be much more versatile than Augury since it will handle telepathy, seeing other realms and much other) where Perceive will be clearer than Augury. That will however put more strain on the Game Master to come up with these distinction.
I have used, to fairly good effect, mechanics where the Divination will give a bonus around the object of divination (in my rules it could be a location, a person or place in time) depending on success (which will turn Perceive in that regard into more of an Augment effect though...). Another one which I have not myself used is that the player get to ask the Game Master questions regarding the Divination, say one question per margin of success maybe.
Augury could be more of a carnival trick used to gather money than actually do any "real" divination.
"Cast on a creature, perception spells can act as telepathy or mind reading. Used on a willing subject, telepathic communication..."
I may want to open the door to telepathic communication with the unwilling, even though that could be seen as something as an Influence roll.
I think it works to keep that within Perceive. Using the Saving throw system that is quite easily done. Arcanum (with Specialty and Mastery) vs. Save Ability of choice. Get to pick one piece of information per margin of success rolled.
And this was mentioned "Cast as an Area spell it works as clairvoyance or clairaudience".
Perfect Perceive effect!
Now, the difficult part, which I think needs revision "This magical effect does not cover Divination, which is the domain of the Augury ability". I think it would be better if I rewrote that to find synergy between the Effect and the Augury ability, am amplification if you will.
The easiest way would be to use Perceive as an Augment effect for Augury but that feels wrong. Augment already exist for that! I'll think a bit about this and post here if I think of something
A communication Effect for languages could be wrapped into Perceive if we made it Perceive/Comprehend. That would work without too much of a major change, I think, at least at first glance.
Nice. Comprehend would be a fairly small niche but it could be nice to include!
The detection of magic is a basic cantrip that all arcanists know from the start, even before gaining knowledge of and access to the spells of various Power Sources. For instance, a magic user with ability only in Arcanum (no Specializations) can still spend a single spell point to detect active magical emanations. He could detect these energies on himself, an object, or a room, and even identify the Power Source, all for 1 spell point. To detect inactive or dormant spells and emanations, the spell caster would require the Perceive effect.
I actually think that Cantrip effect could be lessened where you get more specific information using Perceive. You get a general magical vibe with the Cantrip but to get information on specific power source, pinpoint exact spell etc. would be a Perceive effect.