fix: set ManagerSelectionResponse extra=forbid for Chat API structured outputs

Prachig-Microsoft · Copilot · Prachig-Microsoft · commit c5c3a3450cfc · 2026-06-17T15:05:49.000+05:30
OpenAI Chat Completions API requires additionalProperties: false in
response_format schemas. The Responses API was more lenient, but
environments using the Chat client (AzureOpenAIChatClientWithRetry)
enforce this strictly.

Co-authored-by: Copilot &lt;223556219+Copilot@users.noreply.github.com&gt;
diff --git a/src/processor/src/libs/agent_framework/groupchat_orchestrator.py b/src/processor/src/libs/agent_framework/groupchat_orchestrator.py
@@ -70,7 +70,7 @@ class ManagerSelectionResponse(BaseModel):
     )
     final_message: str | None = None
 
-    model_config = {"extra": "allow", "populate_by_name": True}
+    model_config = {"extra": "forbid", "populate_by_name": True}
 
 
 @dataclass

Original file line number	Diff line number	Diff line change
`@@ -70,7 +70,7 @@ class ManagerSelectionResponse(BaseModel):`
`70`	`70`	`)`
`71`	`71`	`final_message: str \| None = None`
`72`	`72`
`73`		`- model_config = {"extra": "allow", "populate_by_name": True}`
	`73`	`+ model_config = {"extra": "forbid", "populate_by_name": True}`
`74`	`74`
`75`	`75`
`76`	`76`	`@dataclass`