A few points to add to the discussion:

Astartian magic's framework was put into the Codex when Astarte poked little holes into the paper at the start. Toun has already exploited this via the magical siphons that sustain white giants. He knows it pretty intimately, seeing as he tried and failed to patch it out with the other chaos before Fate and Amul ate the punch-cards.

Speaking of Toun, his calligraphy was also build into the codex as it was kind-of the programming language he used. It would still be around if he skived off.

By the way, Rtron's been developing stuff with Tounic calligraphy in the background. Not sure when it's coming, but we'll see.

Edit: Oh yeah, and there's Kaolokinesis. That's technically magic. Screws with your head, though. I haven't done much with it outside of Cornerstone.