Why plain text is fragile
Long-form descriptions help humans and models alike, but prose alone forces the model to infer price, availability, and variant relationships. That inference fails more often than teams expect, especially on edge SKUs and seasonal inventory.
Structured data reduces ambiguity: it states the offer, the identifiers, and the attributes in a predictable shape.
Protocols alongside schema
llms.txt and agents.txt are emerging hints for how agents should treat your site — but they sit on top of solid product facts. Treat schema and feeds as the source of truth; treat protocol files as routing and policy, not a replacement for data quality.