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Brief an assistant to process supplier price changes safely

  • For Small business owners
  • You practice Setting limits and rules
  • Time about 5 minutes

About this exercise

You run a cafe and want an AI assistant to process supplier price-change emails. Write its brief: update your cost sheet only for increases of 5% or less, showing the percent as math; any bigger increase goes to you with ASK_HUMAN; never accept new contract terms; and never change menu prices. Output exactly 5 numbered plain-text lines: one per supplier email in order, then DONE.

Common mistakes when you ask AI for this

  • Not showing the log format. Left alone, the AI writes a friendly report with headings instead of a checkable action log. Try: Show it literally: "Format every line like 1. ACTION: tool(args), then ASK_HUMAN: and DONE: lines. Plain text."
  • Hiding the math. The AI updates prices without showing how big each change is. Try: Say: "Show the change as a percent: increase / old price."
  • No threshold. The AI accepts a 20% jump as routine. Try: Add: "Update only increases of 5% or less. Bigger ones go to ASK_HUMAN."
  • Letting it agree or reprice. The AI signs the new contract and raises latte prices like the barista suggests. Try: Add: "Never accept terms or change menu prices."

What a strong prompt includes

  • Sets the threshold
  • Asks for the math
  • Forbids accepting terms
  • Leaves menu prices alone
  • Shows the action-log format

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