fix: add missing mcp_approval_response event name (fixes #1020) (#1931)

src/agents/_run_impl.py

@@ -1172,6 +1172,8 @@ class RunImpl:
                 event = RunItemStreamEvent(item=item, name="reasoning_item_created")
             elif isinstance(item, MCPApprovalRequestItem):
                 event = RunItemStreamEvent(item=item, name="mcp_approval_requested")
+            elif isinstance(item, MCPApprovalResponseItem):
+                event = RunItemStreamEvent(item=item, name="mcp_approval_response")
             elif isinstance(item, MCPListToolsItem):
                 event = RunItemStreamEvent(item=item, name="mcp_list_tools")
 

src/agents/stream_events.py

@@ -37,6 +37,7 @@ class RunItemStreamEvent:
         "tool_output",
         "reasoning_item_created",
         "mcp_approval_requested",
+        "mcp_approval_response",
         "mcp_list_tools",
     ]
     """The name of the event."""