How to Use Claude for Writing Social Media Captions
The exact prompt, setup, and codes to get great results.
The Problem
Writing captions for multiple platforms daily is a content treadmill. Each platform has different norms — what works on LinkedIn bombs on Twitter.
The Prompt (Copy & Paste)
Write social media captions for [TOPIC/ANNOUNCEMENT]. Platform: [LINKEDIN / TWITTER / INSTAGRAM] Goal: [ENGAGEMENT / CLICKS / BRAND AWARENESS] Brand voice: [DESCRIBE IN 3 ADJECTIVES] Context: [WHAT YOU'RE POSTING ABOUT] Rules for LinkedIn: - Hook in first line (this shows before "See more") - Use line breaks for readability - End with a question to drive comments - 150-200 words Rules for Twitter/X: - Under 280 chars - Punchy, no hashtag spam - Optional: thread hook if topic is deeper Rules for Instagram: - First line is the hook - Use 3-5 relevant hashtags at the end - Include a CTA (save, share, comment)
Replace the [BRACKETED] placeholders with your specific details.
What You Get
Platform-native captions that don't feel cross-posted. Each one follows the unwritten rules of the platform and actually sounds like your brand, not generic marketing.
Prompt Codes That Help
Add these prefix codes to the start of your prompt for even better results:
Click any code to see its before/after examples and learn how it works.
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