Designed and implemented a prompt-generation system that converts structured ad scripts into best-in-class, scene-level video generation prompts for UGC-style TikTok/Reels ads. The workflow ingests Agent 2 outputs (concept, scenes, hooks, body, CTA, product positioning) and applies reusable prompt templates and logic to enforce character consistency, natural speech patterns, realistic lighting/camera imperfections, and casual, native social media aesthetics. Delivered a production-ready specification for Agent 3 integration, a reusable prompt library, and a fully generated UGC-style video produced end-to-end with this system.