# llms.txt

> llms.txt is a proposed Markdown file at a site's root that gives AI models a curated summary and link list, so they can find the right pages at inference time.

llms.txt is a proposed convention for a Markdown file served at a site's root (`/llms.txt`) that gives large language models a curated summary of the site and a list of its most useful pages, so an AI agent can find the right content at inference time without parsing HTML built for humans.

**llms.txt is a proposed convention for a Markdown file served at a site's root (`/llms.txt`) that gives large language models a curated summary of the site and a list of its most useful pages, so an AI agent can find the right content at inference time without parsing HTML built for humans.**

The proposal was published by Jeremy Howard of Answer.AI on September 3, 2024, with a v2 revision dated August 10, 2026. The format is deliberately plain: an H1 with the site name, a blockquote summary, optional detail paragraphs, then H2 sections of Markdown links with short notes, plus an "Optional" section for secondary material a model can skip when context is tight. It sits alongside robots.txt and sitemap.xml in spirit but serves a different reader: not a crawler deciding what to index, but a model deciding what to read right now. The related [AGENTS.md](/glossary/agents-md) convention does a similar job for coding agents inside a repository.

Two things are worth knowing before you add one. First, Google says you do not need "new machine readable files, AI text files, or markup" to appear in [AI Overviews](/glossary/ai-overviews) or AI Mode, so llms.txt is not a [generative engine optimization](/glossary/generative-engine-optimization) lever for Google Search. Second, it does help agents and assistants that fetch your site directly, which is why documentation publishers adopted it early; Anthropic's Claude docs expose an index at claude.com/docs/llms.txt, and agentscamp.com publishes one at https://agentscamp.com/llms.txt. The [AI content and search in 2026](/guides/marketing/ai-content-and-search-2026) guide places it in a content plan, and [Claude Code for marketers](/guides/marketing/claude-code-for-marketers) shows how to generate one from a sitemap with an agent.

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_Source: https://agentscamp.com/glossary/llms-txt — Term on AgentsCamp._