> Just for fun, once I had played a bit with it like that, I just told it to finish the application with some vague Jira-epic level instructions on what I wanted in it and then fed it the errors it got.

Would you finish the application with "some vague Jira-epic level instructions"? Or, even if you don't formally make tickets in Jira for them, do you go from vague Jira-epic-sized notions to ticket-sized items? If I had a mind-control helmet that forced you to just write code and not let you break down that jira-epic in your thoughts, do you think the code would be any good? I don't think mine would be.

So then, why does it seem reasonable that Claude would be any good, given such a mental straight jacket? Use planning mode, the keyword "ultrathink" and the phrase "do not write code", and have it break down the vage Jira epic into ticket-sized items, and then have it break it into sub tickets that are byte-sized tasks, and then have it get to work.