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Oct 23, 2025
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docs: Improve llms.txt documentation formatting #1403

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6 changes: 5 additions & 1 deletion fern/products/docs/pages/seo/llms-txt.mdx
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description: Enable tools like Cursor, GitHub Copilot, ChatGPT, and Claude to understand your documentation.
---

[llms.txt](https://llmstxt.org/) is a standard for exposing website content to AI developer tools. Fern automatically generates and maintains `llms.txt` and `llms-full.txt` files for your documentation site. When Fern detects an LLM bot accessing your documentation, it automatically serves Markdown instead of HTML, reducing token consumption by 90%+.
[llms.txt](https://llmstxt.org/) is a standard for exposing website content to AI developer tools. Fern automatically generates and maintains `llms.txt` and `llms-full.txt` files for your documentation site.

## Automatically serve Markdown

When Fern detects an LLM bot accessing your documentation, it automatically serves Markdown instead of HTML, reducing token consumption by 90%+.

Check warning on line 10 in fern/products/docs/pages/seo/llms-txt.mdx

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GitHub Actions / vale 

[vale] reported by reviewdog 🐶
[FernStyles.Acronyms] 'LLM' has no definition.

Raw Output:
{"message": "[FernStyles.Acronyms] 'LLM' has no definition.", "location": {"path": "fern/products/docs/pages/seo/llms-txt.mdx", "range": {"start": {"line": 10, "column": 22}}}, "severity": "INFO"}

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