diff --git a/ai/llmstxt.mdx b/ai/llmstxt.mdx
index d3d64e10a..2ccfa3d8d 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 truncate at 300 characters and the first line break. 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