llms.txt — AI-Readable Site Index (Open Standard)

Emerging open standard from Answer.AI (Jeremy Howard) for making your site AI-assistant-readable. A single `/llms.txt` markdown file at your site root describes what the site contains, key URLs, and context for LLMs. Free. Simple. Increasingly fetched natively by Claude, ChatGPT, Cursor, and agent-based search tools. Companion `/llms-full.txt` can include full content. Best entry point for AI-agent discoverability before paying for managed services.

Discovered on External via @thetalkinghedge