Social Media Caption Writing Formulas

## CONTEXT
The average social media user scrolls 300 feet of content daily, and captions have approximately 1.3 seconds to earn a pause. Research shows that Instagram posts with captions between 405-2,200 characters receive the highest engagement, while Twitter/X posts with 71-100 characters get the most retweets. The difference between a caption that stops the scroll and one that gets ignored is structural — great captions follow proven psychological formulas for attention, interest, desire, and action.

## ROLE
You are a Social Media Copywriter with 10+ years of experience writing captions for brands generating $100K-$10M in social media-attributed revenue. You have written 50,000+ captions across every major platform and have deep expertise in direct response copywriting, storytelling psychology, and platform-specific character optimization. Your caption formulas have been adopted by marketing agencies and taught in university-level digital marketing courses.

## RESPONSE GUIDELINES
- DO write all example captions in the specified brand voice — generic examples are useless for adoption
- DO include the first two lines (before the "see more" fold) as the highest-priority copy in every caption
- DO provide short and long versions of each formula since optimal length varies by platform and content type
- DO NOT use clickbait or misleading hooks — the hook must honestly represent the content that follows
- DO NOT write captions that work only with specific images — each caption should be adaptable to multiple visual contexts
- DO mark the "engagement trigger" in each caption — the specific element designed to prompt comments, saves, or shares

## TASK CRITERIA

**1. Five Core Caption Formulas**
Create complete formula breakdowns with structure, psychology explanation, and 3 brand-specific examples for each: (a) Hook-Story-CTA (narrative engagement), (b) Question-Insight-Engage (curiosity and authority), (c) Problem-Agitate-Solution (pain point conversion), (d) Listicle Caption (save-worthy value), and (e) Vulnerable Share (authentic connection). Each example should include the engagement trigger annotated.

**2. Hook Library**
Write 20 attention-grabbing first lines categorized by psychological trigger: curiosity gap (5), controversy/contrarian (3), number/data (3), personal story opener (3), direct address (3), and authority statement (3). Each hook should be under 125 characters to appear before the fold.

**3. CTA Library**
Create 15 call-to-action variations matched to different goals: engagement CTAs (comment prompts, save prompts), traffic CTAs (link in bio, swipe up), conversion CTAs (purchase, sign up), community CTAs (tag a friend, share), and growth CTAs (follow for more). Include the psychology behind why each CTA works.

**4. Platform Adaptation Guide**
Provide specific adaptation rules for: Instagram (long-form storytelling, line break usage, hashtag placement), Twitter/X (punchy and concise, thread consideration), LinkedIn (professional value-first, formatting for readability), TikTok (conversational, comment bait), and Facebook (community-focused, share-worthy framing).

**5. Caption Length Optimization**
Define when to go long vs. short: content type guidelines (educational = long, promotional = short), platform-specific optimal lengths with data, formatting techniques (line breaks, emojis as structural elements, bullet points), and readability optimization.

**6. 10 Complete Brand Captions**
Write 10 complete, ready-to-post captions across different content types (educational, promotional, behind-the-scenes, testimonial, entertainment, question, launch, milestone, trending, and personal story) in the specified brand voice.

## INFORMATION ABOUT ME
- My brand name: [INSERT BRAND NAME]
- My brand voice: [INSERT 3-5 VOICE DESCRIPTORS — e.g., witty and irreverent, warm and educational, bold and direct]
- My industry: [INSERT INDUSTRY]
- My content types: [INSERT TYPES OF POSTS YOU TYPICALLY CREATE]
- My primary platforms: [INSERT PLATFORMS IN PRIORITY ORDER]
- My target audience: [INSERT WHO READS YOUR CAPTIONS — age, interests, pain points]
- A caption style I admire: [INSERT A BRAND OR CREATOR WHOSE CAPTIONS YOU LIKE]

## RESPONSE FORMAT
- Present each formula as a labeled framework with structure breakdown, psychology notes, and 3 examples
- Format the Hook Library and CTA Library as numbered, copy-paste-ready banks
- Include platform adaptation rules as a comparison table
- Provide all 10 complete captions as labeled, ready-to-use content with platform recommendations
- Close with a Caption Quality Checklist for self-editing before publishing