Regression Check Before Changing a Prompt
Compare old and new prompt outputs on the same inputs.
Added October 15, 2026. Written with AI assistance and checked for clarity and placeholders; not reviewed by a lawyer, accountant, clinician or other professional. How these prompts are made
The Open buttons send the prompt text as currently shown below to that site only when you click. Fill in the placeholders first.
I am about to change a prompt. Old prompt: [OLD_PROMPT]. Proposed change: [CHANGE_DESCRIPTION]. Ten saved inputs with old outputs: [SAVED_INPUTS_AND_OUTPUTS]. Predict which inputs are most likely to be affected and why. Then give a comparison procedure: run the new prompt on all ten, place old and new outputs side by side, and rate each pair as better, same or worse against these criteria: [CRITERIA]. I decide after seeing the table. Return the comparison table layout, a rule for when to accept the change (for example no worse on more than one input and better on at least three), a list of three extra inputs worth adding to the saved set, and a short log entry recording the change, date and result. Also tell me how to treat randomness: run each input at least twice if outputs vary, note differences caused by chance, and avoid concluding anything from a single lucky or unlucky result on one input.
Fill in before use
Optional: type your details and the prompt above updates. Nothing is saved or sent.
Replace each bracketed placeholder with your own details, then paste into Any AI or another assistant.