>You have to shift to almost a QA person and ignore all code and just validate the output.

The obvious answer to this is that it is not feasible to retry each past validation for each new change, which is why we have testing in the first place. Then you’re back at square one because your test writing ability limits your output.

Unless you plan on also vivecoding the tests and treating the whole job as a black box, in which case we might as well just head for the bunkers.