diff --git a/tests/test_stock_role_wiring.py b/tests/test_stock_role_wiring.py
index 4f49598c..17e020c5 100644
--- a/tests/test_stock_role_wiring.py
+++ b/tests/test_stock_role_wiring.py
@@ -43,6 +43,14 @@ EXPECTED_CHIEF_ANALYST_DATA = {
     "confidence": "",
 }
 
+STRUCTURED_PASSTHROUGH_KEYS = {
+    "valuation_data",
+    "segment_data",
+    "scenario_catalyst_data",
+    "position_sizing_data",
+    "chief_analyst_data",
+}
+
 
 class DummyMemory:
     def get_memories(self, _situation, n_matches=2):
@@ -70,6 +78,14 @@ def assert_structured_stock_fields(payload):
     assert payload["chief_analyst_data"] == EXPECTED_CHIEF_ANALYST_DATA
 
 
+def assert_manager_update_omits_structured_passthrough(
+    payload, expected_present_keys
+):
+    for key in expected_present_keys:
+        assert key in payload
+    assert STRUCTURED_PASSTHROUGH_KEYS.isdisjoint(payload)
+
+
 def compile_single_node_graph(node_name, node):
     workflow = StateGraph(AgentState)
     workflow.add_node(node_name, node)
@@ -101,7 +117,10 @@ def test_research_manager_update_omits_structured_stock_passthrough_fields(monke
     assert research_result["investment_debate_state"]["judge_decision"] == (
         "Research manager output"
     )
-    assert set(research_result) == {"investment_debate_state", "investment_plan"}
+    assert_manager_update_omits_structured_passthrough(
+        research_result,
+        {"investment_debate_state", "investment_plan"},
+    )
 
 
 def test_research_manager_graph_preserves_structured_stock_underwriting_fields(
@@ -149,7 +168,10 @@ def test_portfolio_manager_update_omits_structured_stock_passthrough_fields(
     assert portfolio_result["risk_debate_state"]["judge_decision"] == (
         "Portfolio manager output"
     )
-    assert set(portfolio_result) == {"risk_debate_state", "final_trade_decision"}
+    assert_manager_update_omits_structured_passthrough(
+        portfolio_result,
+        {"risk_debate_state", "final_trade_decision"},
+    )
 
 
 def test_portfolio_manager_graph_preserves_structured_stock_underwriting_fields(