diff --git a/src/cosmosmesh_privacy_preserving_federated/catopt_bridge.py b/src/cosmosmesh_privacy_preserving_federated/catopt_bridge.py
index 1b28b7a..26e3711 100644
--- a/src/cosmosmesh_privacy_preserving_federated/catopt_bridge.py
+++ b/src/cosmosmesh_privacy_preserving_federated/catopt_bridge.py
@@ -137,6 +137,38 @@ class CatOptBridge:
             "Version": "0.1",
         }
 
+    def bundle_with_signals(
+        self,
+        lp: LocalProblem,
+        shared: List[SharedVariables],
+        duals: List[DualVariables],
+        plan_deltas: Optional[List[PlanDelta]] = None,
+    ) -> Dict[str, Any]:
+        """Create a complete CatOpt-like bundle consisting of:
+        - LocalProblem under Objects
+        - SharedVariables / DualVariables under Morphisms
+        - PlanDelta entries under Objects as a list
+        This is a convenience helper for tests and adapters that need the
+        full payload in one structure for transport or auditing.
+        """
+        bundle: Dict[str, Any] = {"Version": "0.1"}
+        bundle["Objects"] = {
+            "LocalProblem": lp.to_dict(),
+        }
+        # Morphisms: collect both shared and dual variables
+        morphisms: List[Dict[str, Any]] = []
+        for s in shared:
+            morphisms.append(self.map_shared_variables(s))
+        for d in duals:
+            morphisms.append(self.map_dual_variables(d))
+        if morphisms:
+            bundle["Morphisms"] = morphisms
+
+        # Plan deltas as additional objects if provided
+        if plan_deltas:
+            bundle["Objects"]["PlanDeltas"] = [pd.to_dict() for pd in plan_deltas]
+        return bundle
+
     @classmethod
     def build_round_trip(
         cls,