Zero-Shot E-Commerce Scraping: Call the LLM Last

When a scraper breaks, the reflex is to reach for a language model. For zero-shot e-commerce scraping, that reflex is usually the most expensive move you can make: a model call per page cost me about 30 seconds on local hardware. The product data is often already in the page as JSON, and much of the drift that follows a site change heals without a model.