
This can be read to be a +1 on any skill tests performed on Seeker cards which is solid since there are a lot of seeker events and assets that request skill checks. It doesn't help with any of the "For each point you succeed by" effects though.
Also, while an FAQ entry is yet to come out, I believe that assuming the difficulty of the test is 1 or 0 this will protect against even the autofail token. The autofail token sets your result to 0 and says you fail. Then this reaction kicks in and you succeed instead. Probably best use of that would be it means guaranteed success on Alchemical Distillation.