[rwyinuse]

The end result is, and will always be garbage if there is no "human in the loop" to test whether the result meets the requirements, and telling LLM what to do if it doesn't.

Like somebody else said, there is still a need for QA (and usually for requirements gathering too), that's a part of the development cycle. Developing software that is meant to be used by humans with zero humans involved isn't realistic.