Do you throw away AI prototypes once your idea is validated, or try to patch them?

Building quick MVPs with AI tools is amazing for checking if people actually want your product.

But as soon as real users join stuff like error handling and account permissions start breaking.

Learned the hard way that a quick prototype isn't built to scale.

Rebuilding the logic properly takes less time than constantly fixing bug after bug in AI code.

Are you guys starting fresh with clean code after validating or slowly refactoring what you already have?