[CuriouslyC]

I don't have the context to fully address that tweet, but in my experience there is a repeatable process to prompt design and optimization that could be outlined and followed by a LLM with iterative capabilities using an objective function.

The real proof though is that most "prompt engineers" already use chatgpt/claude to take their outline prompt and reword it for succinctness and relevance to LLMs, have it suggest revisions and so forth. Not only is the process amenable to automation, but people are already doing hybrid processes leveraging the AI anyhow.