Maybe a good first question is, "Does Jinx work on Goblin Builder using a full action to cast what would otherwise be a quick spell?"
There is, understandably, not a lot of rules guidance for Goblin Builder, so mostly we're just speculating until we recieve a definitive ruling.
Given that, lets not rely too heavily on Goblin Builder casting as a "full action" rather than as a "full spell" without some previous precident that the distinction comprises a difference. Are there any other cards worded this way? The solution here may be to make a minor erattum to Goblin Builder to bring it in line with other similar cards.
For flavor reasons I can understand why Goblin Builder "might take an action" rather than "cast a spell" but I don't know if this was intended to be more than flavor. Generally, it's kind of out of flavor for the builder to use Minds's Eye, though, so there's minor flavor weirdness in both options.
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As a thought experiment, if there were a Chronomage with an ability like, "may cast Full Spells as a Quick Action," how would we expect that to work?
I'd expect Jinx to fail, and to be able to cast full spells for my quickcast action, right?
So if you can cast a Full Spell as a Quick Action (hypothetically), it would suggest that you could also cast a Quick Spell as a Full Action if instructed to do so.
Then again, as Jurassic Park wisely points out, you can spend all your effort worrying about if you can, and forget to worry about if you should.
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If Goblin Builder can use Minds's Eye, I would definetly expect that the range would be 0-0 from the eye, since the goblin is still using its ability to cast the spell, and that ability interprets the spell as range 0-0, and only the source changes to the Eye.