> some fundamental flaws in what you’re vibing

That's just a misunderstanding, I'm not "vibing" anything. The tests are written by me, the API interfaces are written by me, the usages are written by me, and the implementation of these functions are written by an LLM, but reviewed to be up to code standards/quality by me.

If a function gives me the right output for the inputs I have in mind, does anything beyond that really matter?