graph TD A[User Input: Script & Guidelines] --> B[Overlay Instruction Generator] B --> C[Process Input] C --> D[Extract Script Content] C --> E[Parse Guidelines] D --> F[Identify Hook] D --> G[Identify CTA] D --> H[Identify Hashtags] E --> I[Apply Timing Rules] E --> J[Apply Style Rules] F & G & H --> K[Format Content] I & J --> K K --> L[Generate Timeline] L --> M[Format as Overlay Plan] M --> N[Output: Timed Text Overlay Plan] subgraph Input Processing C D E end subgraph Content Analysis F G H I J end subgraph Output Generation K L M end