How do you know what good output should look like with little code experience?

Looking at code looking for errors is a hard thing to do well for a large amount of code. A better approach is to ensure tests cover all the important cases and many edge cases. Looking at the code may still be a good idea but mostly to check the design. I think that once you get Claude to test the code it writes well, trying to find errors in the code is a waste of time. I’ve made the mistake of thinking Claude was wrong many times despite the tests passing just to be humbled by breaking the tests with my “improvements”!