diff --git a/interplanetary_edge_orchestrator_privacy/adapters/__init__.py b/interplanetary_edge_orchestrator_privacy/adapters/__init__.py
index 69a54f2..bf692ad 100644
--- a/interplanetary_edge_orchestrator_privacy/adapters/__init__.py
+++ b/interplanetary_edge_orchestrator_privacy/adapters/__init__.py
@@ -1,5 +1,8 @@
 """Adapters package for canonical/interoperable surface.
 
 This module is intentionally lightweight and serves as a namespace holder
-for toy adapters used in MVP experiments.
+for adapters used in MVP experiments.
 """
+
+from .canonical import CanonicalAdapter  # noqa: F401
+from .catopt_bridge import CatOptBridge  # noqa: F401
diff --git a/interplanetary_edge_orchestrator_privacy/adapters/catopt_bridge.py b/interplanetary_edge_orchestrator_privacy/adapters/catopt_bridge.py
new file mode 100644
index 0000000..482ac9d
--- /dev/null
+++ b/interplanetary_edge_orchestrator_privacy/adapters/catopt_bridge.py
@@ -0,0 +1,101 @@
+"""CatOpt Bridge
+
+Minimal, production-friendly scaffold for a CatOpt-style interoperability bridge.
+
+This module provides a tiny, well-typed surface that demonstrates how a real
+adapter could map its internal representations to the DSL primitives defined in
+``dsl.LocalProblem``, ``dsl.SharedVariables``, and ``dsl.PlanDelta``.
+
+The goal is to give collaborators a concrete starting point for building
+interoperable adapters across domains (energy, robotics, space) without
+breaking existing behavior.
+"""
+
+from __future__ import annotations
+
+from typing import Any, Dict, Optional, Tuple
+
+from ..dsl import LocalProblem, SharedVariables, PlanDelta
+
+
+class CatOptBridge:
+    """Lightweight bridge for mapping between a canonical contract and DSL types.
+
+    This class does not perform any privacy-preserving math; it merely shows how
+    adapters can marshal/unmarshal between the vendor-agnostic contract surface
+    and the in-repo DSL data models.
+    """
+
+    CONTRACT_VERSION: str = "0.1"
+
+    def map_local_problem(self, problem: LocalProblem) -> Dict[str, Any]:
+        """Serialize a LocalProblem into a contract-friendly dict."""
+        return {
+            "contract_version": self.CONTRACT_VERSION,
+            "type": "LocalProblem",
+            "problem_id": problem.problem_id,
+            "features": problem.features,
+            "objective": problem.objective,
+            "metadata": problem.metadata,
+        }
+
+    def map_shared_variables(self, shared: SharedVariables) -> Dict[str, Any]:
+        """Serialize SharedVariables into the contract surface."""
+        return {
+            "contract_version": self.CONTRACT_VERSION,
+            "type": "SharedVariables",
+            "version": shared.version,
+            "data": shared.data,
+            "timestamp": shared.timestamp,
+        }
+
+    def map_plan_delta(self, delta: PlanDelta) -> Dict[str, Any]:
+        """Serialize PlanDelta into the contract surface."""
+        return {
+            "contract_version": self.CONTRACT_VERSION,
+            "type": "PlanDelta",
+            "version": delta.version,
+            "delta": delta.delta,
+            "insight": delta.insight,
+        }
+
+    def to_contract(self, problem: LocalProblem, shared: SharedVariables, delta: Optional[PlanDelta] = None) -> Dict[str, Any]:
+        """Combine DSL primitives into a single contract payload."""
+        payload: Dict[str, Any] = {
+            "contract_version": self.CONTRACT_VERSION,
+            "LocalProblem": self.map_local_problem(problem),
+            "SharedVariables": self.map_shared_variables(shared),
+        }
+        if delta is not None:
+            payload["PlanDelta"] = self.map_plan_delta(delta)
+        return payload
+
+    def from_contract(self, payload: Dict[str, Any]) -> Tuple[LocalProblem, SharedVariables, Optional[PlanDelta]]:
+        """Deserialize a contract payload back into DSL primitives.
+
+        This is intentionally simple; a real implementation would include validation
+        and version checks.
+        """
+        lp = LocalProblem(
+            problem_id=payload.get("LocalProblem", {}).get("problem_id", ""),
+            features=payload.get("LocalProblem", {}).get("features", []),
+            objective=payload.get("LocalProblem", {}).get("objective"),
+            metadata=payload.get("LocalProblem", {}).get("metadata", {}),
+        )
+
+        sv = SharedVariables(
+            version=payload.get("SharedVariables", {}).get("version", 0),
+            data=payload.get("SharedVariables", {}).get("data", {}),
+            timestamp=payload.get("SharedVariables", {}).get("timestamp"),
+        )
+
+        delta_payload = payload.get("PlanDelta")
+        delta = None
+        if delta_payload is not None:
+            delta = PlanDelta(
+                version=delta_payload.get("version", 0),
+                delta=delta_payload.get("delta", {}),
+                insight=delta_payload.get("insight"),
+            )
+
+        return lp, sv, delta
diff --git a/interplanetary_edge_orchestrator_privacy/adapters/toy_adapter.py b/interplanetary_edge_orchestrator_privacy/adapters/toy_adapter.py
index 3bc3ddd..26e99a9 100644
--- a/interplanetary_edge_orchestrator_privacy/adapters/toy_adapter.py
+++ b/interplanetary_edge_orchestrator_privacy/adapters/toy_adapter.py
@@ -26,3 +26,26 @@ class RoverAdapter:
 class HabitatAdapter(RoverAdapter):
     # Reuse the same mapping for demonstration; in a real system this would vary.
     pass
+
+
+class RoverHabitatMVPBridge:
+    """Minimal end-to-end MVP bridge wiring two adapters through CatOptBridge.
+
+    This is a simple, test-oriented helper to demonstrate how two adapters can
+    participate in a canonical contract payload without requiring a full runtime
+    orchestration layer. It uses the existing CanonicalAdapter under the hood.
+    """
+
+    def __init__(self):
+        self._canon = CanonicalAdapter()
+        # Reuse the CatOptBridge scaffold for end-to-end mapping
+        from .catopt_bridge import CatOptBridge  # local import to avoid cycle in tests
+        self._bridge = CatOptBridge()
+
+    def rover_to_contract(self, problem_id: str, features: List[float]) -> dict:
+        lp = self._canon.map_local_problem(problem_id, features)
+        sv = SharedVariables(version=1, data={"seed": 42})
+        return self._bridge.to_contract(lp, sv)
+
+    def habitat_from_contract(self, payload: dict) -> tuple[LocalProblem, SharedVariables, PlanDelta | None]:
+        return self._bridge.from_contract(payload)