The prompt only affects the generated llms.txt. It does not rewrite product descriptions, pages or policies in Shopify.
If you want new product copy, that is a different job. LLMs TXT does not change those fields.
What stays untouched
- Product descriptions stay as they are
- Page bodies stay as they are
- Policy text stays as it is
- Only the published llms.txt changes
Read the History preview to see the exact Markdown before you share the storefront URL.