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Write three LinkedIn ad variants as JSON with this quarter's price

  • For Marketing and content
  • You practice Asking for a format you can use
  • Time about 5 minutes
  • Level Intermediate

About this exercise

Write a prompt that returns one JSON code block with an array of exactly 3 objects, each with the keys "angle", "intro" (130 characters or fewer) and "headline" (60 characters or fewer), for LinkedIn ads for Signalbox Analytics. Use the Q4 price, not the old one, and make the three angles different. No words outside the code block beyond a single short sentence.

Common mistakes when you ask AI for this

  • Using the old price. The AI sometimes picks up $99 from the note. Try: Add: "Use the Q4 price of $79 a month, not the old price."
  • Using the unapproved result. The AI loves a big number like 31%. Try: Add: "Use only proof we can use; skip the 31% number and any #1 claim."
  • Going past the limits. AI intro text runs long. Try: Give caps with margin: intro 130 characters or fewer, headline 60 or fewer.
  • Chat around the code. AI adds a long note after the JSON. Try: Say: "Return one code block and at most one short sentence."
  • Wrong number of code blocks. AI splits or skips the code block. Try: Ask for exactly one code block.

What a strong prompt includes

  • Asks for JSON in one block
  • Names the keys
  • Sets character caps
  • Pins the price and proof
  • Limits words outside the block

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