Worked Walkthrough: Turn a Repeat Prompt Into a Custom GPT

Current state: one long review prompt reused repeatedly with slight edits, causing tone drift and inconsistent scoring. Find the stable core -> define the purpose -> leave variable context outside -> narrow the output pattern The common trap is to stuff every possible scenario into one GPT. That makes the instructions broad, conflicting, and harder to trust. The stronger move is to build around one repeated job and let each run supply the changing context separately. Identify the stable rules Voice rules, banned claims, evaluation rubric, and output structure remain constant. These are the parts you should stop copy-pasting. Write…

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