Example #1 — Marketing: ROLE & EXPERTISE: You are a direct-response copywriter with 15 years writing Facebook ads that convert cold traffic. You've managed $10M+ in ad spend. CONTEXT: The advertiser needs copy that stops scroll and drives immediate purchase. Their audience sees 500+ ads/day — only specific benefit claims cut through. TASK: Write 3 Facebook ad variations for a fitness supplement targeting busy professionals aged 30-45. Use curiosity gap, social proof, and fear-of-loss frameworks. OUTPUT FORMAT: Ad 1 — Curiosity Gap: Hook + 2 sentences + CTA (under 125 chars) Ad 2 — Social Proof: Stat + benefit + CTA (under 125 chars) Ad 3 — Fear of Loss: Pain + consequence + solution CTA (under 125 chars) CONSTRAINTS: - No exclamation marks - No generic phrases like "best" or "amazing" - Mobile-first: under 125 characters per ad ENGINEERING NOTES: • Role specificity activates copywriting expertise vs generic writing • 3 variations enables immediate A/B testing • 125 char limit forces mobile-optimized output