Any philosophical position regarding any question is settled based on some perception of what we think of as reality, because if we lack any belief or conception we cant judge any question because
the question does not have meaning at all, which was pointed out by witgenshtein when he was talking
about languages. So, your position could be phrased as: agnosticism is not about whether we believe/take something to be true or false, but rather as a sort of uncertainty about what do we consider to knowledge in the first place, because once we are settled about the form of what we are
going to consider/believe to be knowledge the judgement mechanism is given as well. for example in mathematics as soon as you are done with formalising the system the rest is just following the rules of the system.