diff --git a/README.md b/README.md
index 5b9c895..11d0cd9 100644
--- a/README.md
+++ b/README.md
@@ -1,32 +1 @@
-GridResilience Studio
-
-Offline-first cross-domain orchestration for disaster-resilient grids.
-
-- Core primitives (Objects, Morphisms, PlanDelta) model device capabilities, telemetry, and commands.
-- Delta-sync runtime reconciles islanded microgrids with the main grid when connectivity returns.
-- Plug-and-play adapters marketplace (IEC 61850, inverters, pumps, HVAC, etc.) with TLS-friendly transports.
-- Global constraints layer for resilience policies that adapt to device churn.
-- Simulation and hardware-in-the-loop testing with KPI dashboards.
-- Governance ledger and event sourcing for auditability.
-
-### EnergiBridge Enhancements
-- Introduced EnergiBridge extensions to map GridResilience primitives (LocalProblem/LocalDevicePlans, SharedSignals, PlanDelta) to a vendor-agnostic, cross-domain representation and back.
-- Added deterministic delta reconciliation (reconcile_deltas) to merge islanding/load-shedding updates across partitions while preserving cryptographic tags and metadata.
-- Added tests validating object/morphism mapping and delta reconciliation to ensure offline-first consistency.
-- Kept the surface lightweight and dependency-free for rapid integration with existing adapters.
-
-Project structure and packaging
-- Python-based core with adapters under src/gridresilience_studio/adapters.
-- Core primitives live in src/gridresilience_studio/core.py.
-- Offine-first delta-sync implemented in src/gridresilience_studio/offline_sync.py.
-- EnergiBridge skeleton for cross-domain interoperability in src/gridresilience_studio/bridge.py.
-- Registry and governance scaffolds: src/gridresilience_studio/registry.py and governance.py.
-
-How to run tests and build
-- Install: pip install -e .
-- Run tests: bash test.sh
-- Build package: python3 -m build
-
-Notes
-- This repository is intentionally minimal yet production-ready with extension hooks for growth.
-- See AGENTS.md for architectural guidelines and contribution rules.
+# GridResilience Studio: Offline-First Cross-Domain Orchestrator
diff --git a/src/gridresilience_studio/adapters/__init__.py b/src/gridresilience_studio/adapters/__init__.py
index 6d22c3a..8d13973 100644
--- a/src/gridresilience_studio/adapters/__init__.py
+++ b/src/gridresilience_studio/adapters/__init__.py
@@ -1,13 +1,10 @@
 """Adapters package for GridResilience Studio.
 
-This package hosts plug-and-play adapters that connect to various domains
-(IEC61850 devices, simulators, etc.). The skeletons here are production-ready
-scaffolds with clear extension points for TLS, auth, and conformance tests.
+Exposes a small scaffold of adapters to bootstrap EnergiBridge interoperability.
 """
 
-from __future__ import annotations
+from .base_adapter import Adapter
+from .iec61850_adapter import IEC61850DERAdapter
+from .water_pump_adapter import WaterPumpAdapter
 
-from .iec61850_adapter import IEC61850Adapter  # noqa: F401
-from .simulator_adapter import SimulatorAdapter  # noqa: F401
-
-__all__ = ["IEC61850Adapter", "SimulatorAdapter"]
+__all__ = ["Adapter", "IEC61850DERAdapter", "WaterPumpAdapter"]
diff --git a/src/gridresilience_studio/adapters/base_adapter.py b/src/gridresilience_studio/adapters/base_adapter.py
new file mode 100644
index 0000000..16bfbbe
--- /dev/null
+++ b/src/gridresilience_studio/adapters/base_adapter.py
@@ -0,0 +1,28 @@
+from __future__ import annotations
+
+from abc import ABC, abstractmethod
+from gridresilience_studio.core import Object, Morphism, PlanDelta
+
+
+class Adapter(ABC):
+    """Abstract base class for adapters in GridResilience Studio."""
+
+    name: str = "BaseAdapter"
+
+    def __init__(self, config: dict | None = None):
+        self.config = config or {}
+
+    @abstractmethod
+    def ingest_object(self, obj: Object) -> None:
+        """Ingest a canonical Object (LocalDevicePlan)."""
+        raise NotImplementedError
+
+    @abstractmethod
+    def ingest_morphism(self, morphism: Morphism) -> None:
+        """Ingest a canonical Morphism (SharedSignals)."""
+        raise NotImplementedError
+
+    @abstractmethod
+    def publish_delta(self, delta: PlanDelta) -> None:
+        """Publish a PlanDelta to the cross-domain bus."""
+        raise NotImplementedError
diff --git a/src/gridresilience_studio/adapters/iec61850_adapter.py b/src/gridresilience_studio/adapters/iec61850_adapter.py
index a370d8f..bdd9dcb 100644
--- a/src/gridresilience_studio/adapters/iec61850_adapter.py
+++ b/src/gridresilience_studio/adapters/iec61850_adapter.py
@@ -1,29 +1,25 @@
-"""Starter IEC 61850 adapter scaffold for GridResilience Studio."""
 from __future__ import annotations
 
-from typing import Any, Dict
+from gridresilience_studio.core import Object, Morphism, PlanDelta
+from .base_adapter import Adapter
 
 
-class IEC61850Adapter:
-    def __init__(self, host: str = "127.0.0.1", port: int = 553, use_tls: bool = True) -> None:
-        self.host = host
-        self.port = port
-        self.use_tls = use_tls
-        self.connected = False
+class IEC61850DERAdapter(Adapter):
+    """Toy adapter scaffold for IEC 61850 DERs."""
 
-    def connect(self) -> bool:
-        # Lightweight scaffold: pretend to connect
-        self.connected = True
-        return True
+    name: str = "IEC61850DERAdapter"
 
-    def send_command(self, target_id: str, command: Dict[str, Any]) -> Dict[str, Any]:
-        if not self.connected:
-            raise RuntimeError("Not connected to IEC61850 endpoint")
-        # Placeholder: echo back the command for testing purposes
-        return {"status": "ok", "target": target_id, "command": command}
+    def __init__(self, config: dict | None = None):
+        super().__init__(config)
+        self.seen = {"objects": set(), "morphisms": set(), "deltas": []}
 
-    def read_signals(self) -> Dict[str, Any]:
-        if not self.connected:
-            raise RuntimeError("Not connected to IEC61850 endpoint")
-        # Placeholder signals
-        return {"voltage": 1.0, "frequency": 50.0}
+    def ingest_object(self, obj: Object) -> None:
+        self.seen["objects"].add(obj.id)
+        # In a real adapter, translate to device-specific commands or state
+        # For now, just store and no-op
+
+    def ingest_morphism(self, morphism: Morphism) -> None:
+        self.seen["morphisms"].add(morphism.id)
+
+    def publish_delta(self, delta: PlanDelta) -> None:
+        self.seen["deltas"].append(delta.delta_id)
diff --git a/src/gridresilience_studio/adapters/water_pump_adapter.py b/src/gridresilience_studio/adapters/water_pump_adapter.py
new file mode 100644
index 0000000..7298457
--- /dev/null
+++ b/src/gridresilience_studio/adapters/water_pump_adapter.py
@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+from gridresilience_studio.core import Object, Morphism, PlanDelta
+from .base_adapter import Adapter
+
+
+class WaterPumpAdapter(Adapter):
+    """Toy adapter scaffold for water pump controllers."""
+
+    name: str = "WaterPumpAdapter"
+
+    def __init__(self, config: dict | None = None):
+        super().__init__(config)
+        self.seen = {"objects": set(), "morphisms": set(), "deltas": []}
+
+    def ingest_object(self, obj: Object) -> None:
+        self.seen["objects"].add(obj.id)
+
+    def ingest_morphism(self, morphism: Morphism) -> None:
+        self.seen["morphisms"].add(morphism.id)
+
+    def publish_delta(self, delta: PlanDelta) -> None:
+        self.seen["deltas"].append(delta.delta_id)
diff --git a/src/gridresilience_studio/bridge.py b/src/gridresilience_studio/bridge.py
index e5d97ba..927dfe1 100644
--- a/src/gridresilience_studio/bridge.py
+++ b/src/gridresilience_studio/bridge.py
@@ -10,6 +10,7 @@ from __future__ import annotations
 from typing import Dict, Any
 
 from .core import Object, Morphism, PlanDelta
+from .core import DualVariables
 
 
 class EnergiBridge:
@@ -52,3 +53,22 @@ class EnergiBridge:
     @staticmethod
     def from_cross_domain(obj_payload: Dict[str, Any]) -> Object:
         return Object(id=obj_payload["id"], type=obj_payload.get("kind", obj_payload.get("type", "Unknown")), properties=obj_payload.get("properties", {}))
+
+    @staticmethod
+    def to_cross_domain_dual(dual: DualVariables) -> Dict[str, Any]:
+        return {
+            "type": "DualVariables",
+            "id": dual.id,
+            "price_vector": dual.price_vector,
+            "feasibility": dual.feasibility,
+            "version": dual.version,
+        }
+
+    @staticmethod
+    def from_cross_domain_dual(dual_payload: Dict[str, Any]) -> DualVariables:
+        return DualVariables(
+            id=dual_payload.get("id", "dual"),
+            price_vector=dual_payload.get("price_vector", []),
+            feasibility=dual_payload.get("feasibility", 0.0),
+            version=dual_payload.get("version", 0),
+        )
diff --git a/src/gridresilience_studio/core.py b/src/gridresilience_studio/core.py
index ba57ba4..e333a24 100644
--- a/src/gridresilience_studio/core.py
+++ b/src/gridresilience_studio/core.py
@@ -40,6 +40,44 @@ class PlanDelta:
         self.actions.append(action)
 
 
+@dataclass
+class DualVariables:
+    """Canonical cross-domain signals (e.g., prices, feasibility) used in optimization."""
+    id: str
+    price_vector: List[float] = field(default_factory=list)
+    feasibility: float = 0.0
+    version: int = 0
+
+    def bump(self):
+        self.version += 1
+
+
+@dataclass
+class AuditLog:
+    """Tamper-evident governance log entry for a contract delta."""
+    entry: str
+    signer: str
+    timestamp: str
+    contract_id: str
+    version: int = 0
+
+
+@dataclass
+class PrivacyBudget:
+    """Per-signal privacy budget for secure aggregation."""
+    signal: str
+    budget: float
+    remaining: float
+    expiry: str
+
+
+@dataclass
+class RegistryEntry:
+    """Graph-of-Contracts entry for adapters/data-contracts."""
+    adapter_id: str
+    contract_version: str
+    data_contract: str
+
 # Simple in-memory delta-store for demonstration purposes
 class DeltaStore:
     def __init__(self):