What Is llms.txt?

Quick Answer

What does an llms.txt file contain? A title, a one-line site description, and the sections you filled in. An llms txt generator writes that file in your browser. Is llms.txt an official standard? No. The layout is not an official standard. It follows a convention.

Why it matters

For example, an assistant that only reads one file needs the important links, not the whole sitemap. A short file is easier to quote. You still upload it yourself.

How it works

How to list tools in an llms.txt file: one line each, Name | URL. A path is joined to the site URL. How to leave out an empty section: leave the field blank. The heading is omitted. A short llms.txt vs a full tool inventory: this page writes the short one. A convention vs a formal standard is the honest label for the layout. Machine-readable links are the tool list. A crawler policy line is optional.

Generating the file does not publish it. You copy or download it and you put it on your site.

Common Mistakes