Revert "Merge from main"

This reverts commit b8206a85d7.

python/packages/ag-ui/tests/test_message_adapters.py

@@ -63,9 +63,10 @@ def test_agui_tool_result_to_agent_framework():
     assert isinstance(message.contents[0], TextContent)
     assert message.contents[0].text == '{"accepted": true, "steps": []}'
 
-    assert message.additional_properties is not None
-    assert message.additional_properties.get("is_tool_result") is True
-    assert message.additional_properties.get("tool_call_id") == "call_123"
+    assert hasattr(message, "metadata")
+    assert message.metadata is not None
+    assert message.metadata.get("is_tool_result") is True
+    assert message.metadata.get("tool_call_id") == "call_123"
 
 
 def test_agui_multiple_messages_to_agent_framework():
@@ -158,36 +159,6 @@ def test_agui_message_without_id():
     assert messages[0].message_id is None
 
 
-def test_agui_with_tool_calls_to_agent_framework():
-    """Assistant message with tool_calls is converted to FunctionCallContent."""
-    agui_msg = {
-        "role": "assistant",
-        "content": "Calling tool",
-        "tool_calls": [
-            {
-                "id": "call-123",
-                "type": "function",
-                "function": {"name": "get_weather", "arguments": {"location": "Seattle"}},
-            }
-        ],
-        "id": "msg-789",
-    }
-
-    messages = agui_messages_to_agent_framework([agui_msg])
-
-    assert len(messages) == 1
-    msg = messages[0]
-    assert msg.role == Role.ASSISTANT
-    assert msg.message_id == "msg-789"
-    # First content is text, second is the function call
-    assert isinstance(msg.contents[0], TextContent)
-    assert msg.contents[0].text == "Calling tool"
-    assert isinstance(msg.contents[1], FunctionCallContent)
-    assert msg.contents[1].call_id == "call-123"
-    assert msg.contents[1].name == "get_weather"
-    assert msg.contents[1].arguments == {"location": "Seattle"}
-
-
 def test_agent_framework_to_agui_with_tool_calls():
     """Test converting Agent Framework message with tool calls to AG-UI."""
     msg = ChatMessage(
@@ -227,15 +198,13 @@ def test_agent_framework_to_agui_multiple_text_contents():
 
 
 def test_agent_framework_to_agui_no_message_id():
-    """Test message without message_id - should auto-generate ID."""
+    """Test message without message_id."""
     msg = ChatMessage(role=Role.USER, contents=[TextContent(text="Hello")])
 
     messages = agent_framework_messages_to_agui([msg])
 
     assert len(messages) == 1
-    assert "id" in messages[0]  # ID should be auto-generated
-    assert messages[0]["id"]  # ID should not be empty
-    assert len(messages[0]["id"]) > 0  # ID should be a valid string
+    assert "id" not in messages[0]
 
 
 def test_agent_framework_to_agui_system_role():