Your New Prompt 'Feels' Better. That's Not an Eval.

The article emphasizes the importance of rigorous evaluation over subjective impressions when testing new prompts. It warns against relying on personal satisfaction from familiar examples, highlighting that this approach lacks the objectivity needed for real validation. Instead, it advocates for creating a consistent evaluation set to properly assess changes, ensuring that improvements are genuinely effective and not just a matter of personal "vibes." This method is crucial in fields where precise and unbiased testing is vital, underscoring the need for structured evaluation over gut feelings.