graph TD A[Start: Input URL] --> B{Domain Check} B -- Amazon URL --> C[Extract ASIN] B -- Other URL --> D[Non-Amazon Extraction] C --> E[Call Amazon API] D --> F[Web Scraping API] E --> G[Raw Data Processing] F --> G G --> H[Character Limit Check] H --> I[Data Validation] I --> J[Format JSON Structure] J --> K{Data Complete?} K -- No --> L[Error Handling] L --> B K -- Yes --> M[Final Output] subgraph Output Structure M --> N[title: string max 60 chars] M --> O[bullet_points: array max 200 chars each] M --> P[description: string max 1000 chars] M --> Q[main_image_url: string] end style A fill:#f9f,stroke:#333 style M fill:#9f9,stroke:#333 style B fill:#ff9,stroke:#333 style K fill:#ff9,stroke:#333