GEO & SEO
llms.txt
Definition
llms.txt is a markdown file served at a site's root that lists its most important pages with short descriptions, giving language models a curated, low-cost map of the site. It is a community convention rather than an official standard.
A companion file, llms-full.txt, contains the full plain text of those pages so an assistant can ingest the site in a single request. No major provider has publicly committed to reading either file, but the cost of adding them is close to zero.
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