Does it still count as vibe coding if I give the LLM specific instructions on how to refactor something (not a functional requirement)? Or is that the line?

tomorrow

The lowest levels of the stack are too ossified to have your ideas adopted, while the highest levels are already idea saturated. The most interesting place to innovate is a thin slice in the middle, where small changes can have radical effects. Right now I believe the sweet spot is identity and data storage of small payloads