diff --git a/ai/llmstxt.mdx b/ai/llmstxt.mdx
index d3d64e10a..8b7bedd9a 100644
--- a/ai/llmstxt.mdx
+++ b/ai/llmstxt.mdx
@@ -28,7 +28,7 @@ An `llms.txt` file is a plain Markdown file that contains:
 
 The `llms.txt` file lists your pages alphabetically in the order they appear in your repository, starting from the root directory.
 
-Each page's description comes from the `description` field in its frontmatter. For API reference pages, the description also includes the specification information from the `openapi` or `api` frontmatter field. Pages without a `description` field appear in the `llms.txt` file without a description.
+Each page's description comes from the `description` field in its frontmatter. Descriptions longer than 300 characters are truncated to the first paragraph and capped at 300 characters with an ellipsis. For API reference pages, the description also includes the specification information from the `openapi` or `api` frontmatter field. Pages without a `description` field appear in the `llms.txt` file without a description.
 
 ```mdx Example llms.txt
 # Site title