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Prompt repository Marketing

Write ad variants within character limits

You need a set of headline and description options for a search or social ad, each under the platform's limits and each testing a different angle.

Registry no.
MKT-002
Collection
Marketing
Laid out for
Gemini
Score
10 out of 10
Blanks to fill
5
Added

MarketingGemini

The prompt

Score 10 of 10, Excellent

Use it when You need a set of headline and description options for a search or social ad, each under the platform's limits and each testing a different angle.

  • {{product_facts}}
  • {{audience}}
  • {{keywords}}
  • {{char_limits}}
  • {{platform}}
Full prompt and why it works
Prompt
<product>
{{product_facts}}
</product>

<audience>
{{audience}}
</audience>

<keywords>
{{keywords}}
</keywords>

<constraints>
- Character limits, counting spaces: {{char_limits}}. Stay under every limit; an ad over the limit is rejected.
- Make only claims the product facts support. No prices, discounts or guarantees unless they appear there.
- No exclamation marks, no words in all capitals, and no superlatives such as "best" or "#1", which many ad platforms restrict unless they are verified.
- Each variant must be distinct: across the set, cover the main benefit, the problem, a specific feature, a proof point and the audience itself.
</constraints>

<format>
A Markdown table with the columns Angle, Headline, Headline characters, Description, Description characters, with 10 variants. Then one line naming the two variants to test first, and why.
</format>

<task>
Using the product facts and keywords above, write 10 ad variants for {{platform}} aimed at the audience described. Use a keyword in each headline where it reads naturally. If anything is missing for an angle, skip that angle and say so below the table.
</task>

Variables

{{product_facts}}
What the product does, for whom, and any proof or offer you are allowed to advertise.
{{audience}}
Who the ad is for.
{{keywords}}
The search terms or interests you are targeting, comma separated.
{{char_limits}}
Your platform's limits, for example "headline 30, description 90". Check the platform's current rules.
{{platform}}
Where the ad runs, for example Google search ads or LinkedIn.

Why it works

  • Length. Character limits come from you, with a count column for every line so over-long ones are easy to spot. Check the counts before uploading, since models can miscount.
  • Format. A table with one angle per row makes the set easy to compare and to paste into an ad editor or a spreadsheet.
  • Layout. Short, direct and material-first, with the task at the end: the layout Google recommends for Gemini.

How to use it

  1. Press Fill in variables and type your details into each blank. What you type stays in this browser.
  2. Copy the filled prompt into the AI tool you already use, such as ChatGPT, Claude or Gemini, or open it in the Grader or the Prompt Tester here.
  3. Before you rely on it, try it on three or four real examples. The Prompt Tester runs them all at once and shows which ones go wrong.