Do you gain skill points retroactively for increase in Intelligence?

[Outpost Omega 5]

I've been using ToyBox to to quickly level up my NPC character's to level 20 so I can make a reference sheet of their level up progressions.* When making the reference sheet for Nenio, when her intelligence goes from 21 to 22 at level 8, increasing her Int Mod from +5 to +6, she gained 8 skill points. Considering she's been only getting 4.5 skill points a level prior to this, I'm missing something.

This is my second play through, so you don't need to worry about spoilers, I know Nenio's story/secret, but It's been over a year since my first play through. I'm fuzzy on recalling the finer details. Should I just write off the sudden spike in skill points at level 8 as weirdness unique to her secret (I'm being vague for the benefit of people who haven't played through the game yet), or is there a real, game system legal, explanation that I'm over looking?

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* = Everybody and their dog has a suggested "ideal" build for the various characters, but I can't seem to find a simple reference of their default builds ANYWHERE. I will actually play the game normally, with out maxing out their level to 20 from the get go, I just want to be able to control aspects of leveling up my characters with out being completely cut off from the suggestions of the default builds.

[pckirk]

skill points increase with your INT bonus increase. the total you get each level up will also be based on what class your leveling up in

[Kaze]

Yes. At lvl 8 when you bump her up to 22 INT she will get an additional 4 skill points to spend (half her level). This is also true if you're leveling a human and select Fast Learner feat. You'll get half your level in skills to assign.

[Outpost Omega 5]

So retroactive gains are the reason? I'm more familiar with DnD 3.5 than Pathfinder, and if I recall correctly, you did NOT get retroactive gains in DnD 3.5, hence my confusion.

Thank you.

[Outpost Omega 5]

Kinda wish I knew about the retroactive gains when I was playing Kingmaker just the other day. I would have built my character a little differently.

[Triple G]

Imho it would be nice if You wouldn´t need to invest 2 points for 1 gain - for all the other attributes, while for intelligence is halfway works that way that You get something out of any point invested into it.

Just saying - and ye, it´s unrelated, and ye - it wouldn´t change...