Definition
A Markdown file at a site's root that tells language models what the site is and which pages are worth reading. An index; llms-full.txt is the optional single file with the pages' text.
In the report
One of the thirteen checks: present at the root, in Markdown, with a name, a one-line summary and the pages worth reading. The checker on this site reads yours and, if there is none, writes a starting one.
How to move it
Write it as an index, not a brochure: the pricing, the product and the comparison pages, one line each. Add llms-full.txt when the site's text is worth handing over whole.
See llms.txt measured on your site
Your website, region and work email. The score appears in about three minutes, and the report is a link you keep.