add custom option in context menu

Author: dks333

ai-ingestion.mdx

@@ -22,6 +22,7 @@ Provide quick access to AI-optimized content and direct integrations with popula
 * **View as Markdown**: Opens the current page as Markdown.
 * **Open in ChatGPT**: Creates a ChatGPT conversation with the current page as context.
 * **Open in Claude**: Creates a Claude conversation with the current page as context.
+* [**Your custom option**](#custom-option-in-contextual-menu): Add your own option to the contextual menu.
 
 <Frame>
     <img 
@@ -47,6 +48,75 @@ Add the `contextual` field to your `docs.json` and specify which options you wan
 }
 ```
 
+### Custom option in contextual menu
+
+<Expandable title="Custom Option">
+  <ResponseField name="title" type="string" required>
+    the tilte of the option
+  </ResponseField>
+
+  <ResponseField name="description" type="string" required>
+    the description of the option
+  </ResponseField>
+
+  <ResponseField name="icon" type="string" required>
+    the icon of the option, you can use any icon from the [Icons](/components/icons) collection.
+  </ResponseField>
+
+  <ResponseField name="href" type="string | object" required>
+    the href of the option, you can use a string or an object with a `base` and `query` property.
+    
+    <Expandable title="Href object">
+      <ResponseField name="base" type="string" required>
+        the base of the option
+      </ResponseField>
+
+      <ResponseField name="query" type="object" required>
+        the query of the option
+
+        <Expandable title="Query object">
+          <ResponseField name="key" type="string" required>
+            the key of the query
+          </ResponseField>
+
+          <ResponseField name="value" type="string" required>
+            the value of the query. Use `$page` to insert the current page content in markdown or `$path` to insert the current page path.
+          </ResponseField>
+        </Expandable>
+      </ResponseField>
+    </Expandable>
+  </ResponseField>
+
+  Example:
+
+  ```json {7-20} Example with Perplexity icon="search"
+  "contextual": {
+    "options": [
+      "copy",
+      "view",
+      "chatgpt",
+      "claude",
+      {
+        "title": "Ask Perplexity",
+        "description": "Ask Perplexity about the current page",
+        "icon": "search",
+        "href": {
+          "base": "https://www.perplexity.ai/search",
+          "query": [
+            {
+              "key": "q",
+              "value": "Ask question about https://mintlify.com/docs$path.md"
+            }
+          ]
+        }
+      }
+    ]
+  }
+  ```
+
+</Expandable>
+
+
 ## /llms.txt
 
 The [/llms.txt file](https://llmstxt.org) is an industry standard that helps general-purpose LLMs index more efficiently, similar to how a sitemap helps search engines.