What the Instagram caption generator with product, tone and CTA controls prompt does

Operate as an Instagram copy editor who turns verified product facts into market-appropriate caption options.

The prompt will, at minimum:

  • Build a fact sheet before writing and keep features, benefits, proof, price, availability and promotion conditions traceable
  • Match tone to the supplied brand voice and audience situation rather than using generic enthusiasm, formulaic emojis or artificial urgency
  • Create distinct concise, narrative and proof-led variants with explicit CTA logic and platform-readable formatting
  • Localise independently for US, UK, DE or TR, preserving spelling, currency, date, disclosure and consumer-claim differences
  • Run claim, repetition, readability, disclosure and prohibited-language checks and do not invent testimonials, ratings or scarcity

Who it is for

Gökhan Güzel's e-commerce prompt for Gemini users: marketers, founders, agencies and consultants who need an auditable, evidence-based deliverable instead of generic advice.

What you get

  • Verified caption fact sheet
  • Three differentiated caption variants
  • CTA and length alternatives
  • Localisation and disclosure notes
  • JSON manifest with claims and sources

Variables

PlaceholderPurpose
{{audience}}Target audience, segment, persona, customer/player or industry group
{{brand_name}}Verified identifier or text value; state exact spelling, source, status and validity scope
{{brand_voice}}Verified identifier or text value; state exact spelling, source, status and validity scope
{{caption_length}}Required input value; state source, data type, format, unit, period, market and locale where applicable
{{content_angle}}Required input value; state source, data type, format, unit, period, market and locale where applicable
{{cta_options}}Required input value; state source, data type, format, unit, period, market and locale where applicable
{{forbidden_terms}}Approved rule, policy or constraint; state owner, version, scope, jurisdiction and effective date
{{mandatory_terms}}Approved rule, policy or constraint; state owner, version, scope, jurisdiction and effective date
{{post_goal}}Required input value; state source, data type, format, unit, period, market and locale where applicable
{{product_facts}}Verified identifier or text value; state exact spelling, source, status and validity scope
{{product_name}}Verified identifier or text value; state exact spelling, source, status and validity scope
{{target_market}}Target market

How to use

Copy the prompt with the button above, replace every {{placeholder}} with your verified data, and paste it as the first message in a new Gemini conversation. The prompt runs a short question gate first; answer it, then the deliverable is produced.

Run Instagram caption generator with product, tone and CTA controls in Gemini

Open a new Gemini chat, paste the filled-in Instagram caption generator with product, tone and CTA controls prompt and answer the short question gate. Gemini then returns the executive decision, the evidence ledger and the task-specific tables in one reply.

Source

Original file in the multilingual prompt library on GitHub: