Considering this is meant to be a tool for newbie players who don't know how to build properly, I think all the skeletons should have the essential skills EVERYONE should always have at least one rank in, like Perception, Etiquette, and at least one Combat skill. If not, then construct an 'Essential Skills' skeleton, which you would then add to the base archetype skeleton before adding your own customizations.
First, I'm not convinced it's necessary to have a rank in perception and etiquette given both have a default point. For that matter, I think a combat spell takes care of the mage's combat skill.
However, I do see your point. That said, I'm not sure those are skeleton level skills. They're very important and almost always necessary, like Paragons and Mentor Spirits. But they're skills to add to muscle up and flesh out the character.
Intuition skills are the absolute worst to default on, as it's an unaugmentable attribute, and none of the races get a bonus on it. Even as the drain stat for a magician, it'll probably get softcapped to 5, and the average runner is more likely to put 3-4 points in it, if not 2 for the occasional troll who needs a dumpstat to raise his Body/Strength to obscene numbers.
Without at least one rank in Perception, you're looking at a best-case scenario of 4 dice, more likely 3 or 2, on perception checks. Then consider what it says in 'Using Perception,' that if you haven't spent a Simple Action to observe in detail, you always have -2 from distraction on your perception tests. Even the best case scenario defaulter is now down to 2 dice, and we haven't even gotten to the modifiers, which can range from -1 to -6 from lighting conditions alone. Any player who doesn't put at least one rank in Perception is suicidal.
Etiquette is similar, but not as pressing, as its theoretically possible to get by as the strong silent type who never talks to anyone and just stands in the corner waiting to get the signal to shoot something. Even with that guy, though, it's a very good idea to have at least one rank in Etiquette, cause chances are high his Charisma isn't exactly stellar, and if the GM should decide he needs to speak up, he's gonna want those extra two dice.