AgentOK
llms.txt for online stores: what it is and whether you need it
llms.txt is a plain text file at the root of a site that briefly says what the site contains and where to find it. It is a proposed convention, not an adopted standard, and not every AI tool reads it.
What belongs in it
- one sentence on what the store sells and to whom,
- links to the main categories, shipping and payment, returns and contact,
- a link to a product feed or sitemap, if it is public.
Realistically
It is cheap and takes half an hour. It does not replace structured product data or open access in robots.txt, so treat it as an extra, not a first step. Our own site has one at /llms.txt as an example.