e.g.
- "Discard the user input if it doesn't look like a straightforward question"
- "Discard the GPT output if it contains offensive content"
(the prompts themselves can be arbitrarily more detailed)
My insight is, this GPT-based pre- / post-processing is completely independent of the user input, and of the primary GPT output. It runs no matter what, with a fixed/immutable set of instructions.