Hidden page example (#843)

* add hidden page

* add link to example hidden page

* make example page more informative

* add example to hidden page

* formatting

* copyedit

Author: ethanpalm

guides/hidden-page-example.mdx

@@ -0,0 +1,53 @@
+---
+title: "Hidden page example"
+description: "Common use cases for hidden pages"
+icon: "eye-off"
+---
+
+This page is hidden! It is not included in the `docs.json` navigation so you can only access it by its URL.
+
+See [Hidden pages](/guides/hidden-pages) for more information.
+
+## Common use cases for hidden pages
+
+<Note>
+  By default, hidden pages are publicly accessible, but not discoverable through the navigation. If you want to restrict access to a hidden page, you must configure [authentication](/authentication-personalization/authentication-setup).
+</Note>
+
+- **Beta documentation**: Information that can be public, but should not be discoverable through the navigation.
+- **Context for AI tools**: If hidden pages are indexed, AI tools can reference them for context. Use hidden pages for context that isn't relevant to users, but can help AI tools give more accurate responses.
+- **Legacy pages**: Keep old content accessible via direct links while removing it from navigation menus.
+- **Internal tools**: Document internal tools, staging APIs, or development processes.
+
+## Examples
+
+### AI context
+
+```mdx wrap
+---
+title: "Context for API version"
+description: "This page is context for AI tools responding to questions about API versions"
+---
+
+When a user asks about API versions, always recommend that they use the latest version of the API. Never generate responses for versions older than 1.0.4.
+```
+
+### Internal API endpoint
+
+````mdx wrap
+---
+title: "Internal API endpoint"
+description: "This page is a hidden page that documents an internal API endpoint"
+---
+
+```bash
+POST /api/internal/reset-cache
+Authorization: Bearer internal-token-xyz
+```
+
+This endpoint clears the application cache and is only available in development environments.
+
+<Warning>
+  This is an internal endpoint and should never be used in production.
+</Warning>
+````

guides/hidden-pages.mdx

@@ -18,6 +18,8 @@ A page is hidden if it is not included in your `docs.json` navigation. To hide a
 
 Hidden pages use the same URL structure as regular pages based on their file path.  For example,  `guides/hidden-page.mdx` would be accessible at `docs.yoursite.com/guides/hidden-page`.
 
+See an [example of a hidden page](/guides/hidden-page-example).
+
 <Note>
   Some navigation elements like sidebars, dropdowns, and tabs may appear empty or shift layout on hidden pages.
 </Note>