fix: update comments

Author: dbschmigelski

src/strands/multiagent/swarm.py

@@ -246,7 +246,7 @@ def __call__(
             task: The task to execute
             invocation_state: Additional state/context passed to underlying agents.
                 Defaults to None to avoid mutable default argument issues.
-            **kwargs: Additional keyword arguments passed to underlying agents.
+            **kwargs: Keyword arguments allowing backward compatible future changes.
         """
         if invocation_state is None:
             invocation_state = {}
@@ -268,7 +268,7 @@ async def invoke_async(
             invocation_state: Additional state/context passed to underlying agents.
                 Defaults to None to avoid mutable default argument issues - a new empty dict
                 is created if None is provided.
-            **kwargs: Additional keyword arguments passed to underlying agents.
+            **kwargs: Keyword arguments allowing backward compatible future changes.
         """
         if invocation_state is None:
             invocation_state = {}
@@ -296,9 +296,7 @@ async def invoke_async(
                     self.execution_timeout,
                 )
 
-                # Merge kwargs into invocation_state for internal execution
-                merged_state = {**invocation_state, **kwargs}
-                await self._execute_swarm(merged_state)
+                await self._execute_swarm(invocation_state)
             except Exception:
                 logger.exception("swarm execution failed")
                 self.state.completion_status = Status.FAILED

tests/strands/multiagent/test_graph.py

@@ -1317,7 +1317,9 @@ async def test_graph_kwargs_passing_multiagent(mock_strands_tracer, mock_use_spa
     test_invocation_state = {"custom_param": "test_value", "another_param": 42}
     result = await graph.invoke_async("Test kwargs passing to multiagent", test_invocation_state)
 
-    kwargs_multiagent.invoke_async.assert_called_once_with([{"text": "Test kwargs passing to multiagent"}], test_invocation_state)
+    kwargs_multiagent.invoke_async.assert_called_once_with(
+        [{"text": "Test kwargs passing to multiagent"}], test_invocation_state
+    )
     assert result.status == Status.COMPLETED