What is llms.txt?
A proposed standard file (like robots.txt) that provides AI language models with a site summary and key information.
llms.txt is an emerging convention where websites provide a plain text file at their domain root (e.g., example.com/llms.txt) containing a structured summary of the site designed specifically for large language models. Think of it as robots.txt for content guidance rather than crawl permissions.
The file typically contains: site description, key products/services, pricing information, target audience, and links to the most important pages — all in a format optimized for LLM consumption. Some implementations include llms-full.txt for comprehensive content and llms-ctx.txt for contextual information.
llms.txt is part of the broader movement to make websites agent-ready. While not yet a formal standard, it's gaining adoption as AI assistants increasingly use structured site information to provide better answers. Cloudflare's "Markdown for Agents" and Chrome's WebMCP are related initiatives in the same direction.
How Switch Helps
Switch helps you serve agent-optimized content through markdown journeys, similar in spirit to llms.txt but with the added ability to customize content per agent type.
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