feat(config): support output_key and include_contents in LlmAgentConfig

PiperOrigin-RevId: 782170665

src/google/adk/agents/config_schemas/AgentConfig.json

@@ -76,6 +76,27 @@
           ],
           "default": null,
           "title": "Disallow Transfer To Peers"
+        },
+        "output_key": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "title": "Output Key"
+        },
+        "include_contents": {
+          "default": "default",
+          "enum": [
+            "default",
+            "none"
+          ],
+          "title": "Include Contents",
+          "type": "string"
         }
       },
       "required": [

src/google/adk/agents/llm_agent.py

@@ -537,6 +537,10 @@ class LlmAgent(BaseAgent):
       agent.disallow_transfer_to_parent = config.disallow_transfer_to_parent
     if config.disallow_transfer_to_peers:
       agent.disallow_transfer_to_peers = config.disallow_transfer_to_peers
+    if config.include_contents != 'default':
+      agent.include_contents = config.include_contents
+    if config.output_key:
+      agent.output_key = config.output_key
     return agent
 
 
@@ -562,3 +566,9 @@ class LlmAgentConfig(BaseAgentConfig):
 
   disallow_transfer_to_peers: Optional[bool] = None
   """Optional. LlmAgent.disallow_transfer_to_peers."""
+
+  output_key: Optional[str] = None
+  """Optional. LlmAgent.output_key."""
+
+  include_contents: Literal['default', 'none'] = 'default'
+  """Optional. LlmAgent.include_contents."""