docs: updated the agent-engine deploy docs (#467)

iamkalio · lavinigam-gcp · web-flow · commit 36136af4ac92 · 2025-07-11T19:28:49.000+05:30
Co-authored-by: Lavi Nigam &lt;98014943+lavinigam-gcp@users.noreply.github.com&gt;
diff --git a/docs/deploy/agent-engine.md b/docs/deploy/agent-engine.md
@@ -71,6 +71,9 @@ app = reasoning_engines.AdkApp(
 )
 ```
 
+!!!info
+    When an AdkApp is deployed to Agent Engine, it automatically uses `VertexAiSessionService` for persistent, managed session state. This provides multi-turn conversational memory without any additional configuration. For local testing, the application defaults to a temporary, in-memory session service.
+
 ### Try your agent locally
 
 You can try it locally before deploying to Agent Engine.

Original file line number	Diff line number	Diff line change
`@@ -71,6 +71,9 @@ app = reasoning_engines.AdkApp(`
`71`	`71`	`)`
`72`	`72`	```
`73`	`73`
	`74`	`+!!!info`
	`75`	+ When an AdkApp is deployed to Agent Engine, it automatically uses `VertexAiSessionService` for persistent, managed session state. This provides multi-turn conversational memory without any additional configuration. For local testing, the application defaults to a temporary, in-memory session service.
	`76`	`+`
`74`	`77`	`### Try your agent locally`
`75`	`78`
`76`	`79`	`You can try it locally before deploying to Agent Engine.`