diff --git a/ai/agent.mdx b/ai/agent.mdx
index 770aaea85..8831970a3 100644
--- a/ai/agent.mdx
+++ b/ai/agent.mdx
@@ -18,6 +18,16 @@ Use the agent to:
 
 To get started, add the agent to your Slack workspace and mention it with `@mintlify` in a channel.
 
+## Specify a subdomain
+
+If you have multiple documentation sites (such as public docs and customer docs), you can specify which subdomain the agent should work with by including the `subdomain` parameter in your message:
+
+- `@mintlify subdomain=public-docs` - Work with your public documentation
+- `@mintlify subdomain=customer-docs` - Work with your customer documentation  
+- `@mintlify subdomain=mintlify` - Work with a specific custom subdomain
+
+This ensures the agent makes changes to the correct documentation site when you have multiple subdomains configured.
+
 ## Add the agent to your Slack workspace
 
 <Note>