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llms.txt

llms.txt is a plain-text Markdown file at the root of a website that tells language models what the site is and links to the pages worth reading, in a form that is cheap to fetch and parse.

The format, proposed at llmstxt.org, is an H1 with the site name, a one-line summary in a blockquote, and sections of links with a short note on each. It sits at /llms.txt, next to robots.txt.

It does not replace a sitemap or good HTML. It gives an assistant a curated starting point, so it reaches the docs or the pricing page directly instead of crawling the navigation.

Where Stunt Double fits

This site publishes one at /llms.txt, generated from the same registries as the pages it lists. It is one of the cheapest agent experience improvements a site can make.

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