diff --git a/README.md b/README.md
index d3ea499..a4d8e89 100644
--- a/README.md
+++ b/README.md
@@ -17,5 +17,13 @@ Usage
 - Run tests: `bash test.sh`
 - See `src/gridresilience_studio/` for core implementations and `adapters/` for starter adapters.
 
-Note
+- EnergiBridge & MVP Extensions
+- This repository now includes a lightweight EnergiBridge canonical bridge to map GridResilience primitives to vendor-agnostic representations and starter adapters for IEC 61850 and a microgrid simulator. These scaffolds enable cross-domain interoperability while preserving offline-first operation.
+- The MVP wiring includes: 2 starter adapters, a minimal LocalProblem/SharedSignals/PlanDelta sketch, and a toy delta-sync surface that can replay deterministically. See src/gridresilience_studio/energi_bridge.py and adapters/ for details.
+- This remains a seed MVP; additional phases will introduce governance ledger, secure identities, and cross-domain dashboards in subsequent iterations.
+
+- Usage
+- Install: `pip install -e .`
+- Run tests: `bash test.sh`
+- See `src/gridresilience_studio/` for core implementations and `adapters/` for starter adapters.
 - This repository is the MVP seed; follow-on agents will extend functionality, governance, and cross-domain testing.
diff --git a/adapters/iec61850_adapter.py b/adapters/iec61850_adapter.py
new file mode 100644
index 0000000..a370d8f
--- /dev/null
+++ b/adapters/iec61850_adapter.py
@@ -0,0 +1,29 @@
+"""Starter IEC 61850 adapter scaffold for GridResilience Studio."""
+from __future__ import annotations
+
+from typing import Any, Dict
+
+
+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
+
+    def connect(self) -> bool:
+        # Lightweight scaffold: pretend to connect
+        self.connected = True
+        return True
+
+    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 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}
diff --git a/adapters/simulator_adapter.py b/adapters/simulator_adapter.py
new file mode 100644
index 0000000..ecbfdc6
--- /dev/null
+++ b/adapters/simulator_adapter.py
@@ -0,0 +1,28 @@
+"""Starter microgrid simulator adapter scaffold for GridResilience Studio."""
+from __future__ import annotations
+
+from typing import Any, Dict
+
+
+class SimulatorAdapter:
+    def __init__(self, name: str = "sim-bridge") -> None:
+        self.name = name
+        self.running = False
+
+    def start(self) -> bool:
+        self.running = True
+        return True
+
+    def stop(self) -> None:
+        self.running = False
+
+    def get_signals(self) -> Dict[str, Any]:
+        if not self.running:
+            return {}
+        # Return a tiny synthetic signal set for demonstration
+        return {"sim_voltage": 230.0, "sim_freq": 50.0}
+
+    def apply_command(self, obj_id: str, command: Dict[str, Any]) -> Dict[str, Any]:
+        if not self.running:
+            return {"status": "stopped"}
+        return {"status": "applied", "object": obj_id, "command": command}
diff --git a/src/gridresilience_studio/__init__.py b/src/gridresilience_studio/__init__.py
index afe75d0..8c28d01 100644
--- a/src/gridresilience_studio/__init__.py
+++ b/src/gridresilience_studio/__init__.py
@@ -4,9 +4,17 @@ Public API surface:
 - Objects: LocalDevicePlans (DERs, loads, pumps)
 - Morphisms: SharedSignals (versioned telemetry and policy signals)
 - PlanDelta: incremental islanding/load-shedding updates with cryptographic tags
-- core helpers: delta-sync, governance scaffold
+- EnergiBridge: canonical bridge to map GridResilience primitives to vendor-agnostic representations
 """
 
 from .core import Object, Morphism, PlanDelta
 
 __all__ = ["Object", "Morphism", "PlanDelta"]
+
+# Optional EnergiBridge export (kept optional to avoid hard import on all usages)
+try:
+    from .energi_bridge import EnergiBridge  # type: ignore
+    __all__.append("EnergiBridge")
+except Exception:
+    # EnergiBridge is not required for core unit tests; skip if unavailable
+    pass
diff --git a/src/gridresilience_studio/energi_bridge.py b/src/gridresilience_studio/energi_bridge.py
new file mode 100644
index 0000000..909fd35
--- /dev/null
+++ b/src/gridresilience_studio/energi_bridge.py
@@ -0,0 +1,53 @@
+"""EnergiBridge: Canonical bridge for GridResilience primitives.
+
+This module provides lightweight mapping helpers that translate between
+GridResilience Studio canonical primitives (Objects, Morphisms, PlanDelta)
+and a vendor-agnostic representation suitable for cross-domain adapters.
+The implementation here is intentionally small and dependency-free to keep
+tests fast and focused on integration surface.
+"""
+from __future__ import annotations
+from dataclasses import dataclass, field
+from typing import Any, Dict
+
+from .core import Object, Morphism, PlanDelta
+
+
+@dataclass
+class LocalProblem:
+    """Toy DSL: Local problem description in a cross-domain friendly form."""
+    id: str
+    description: str
+    resources: Dict[str, Any] = field(default_factory=dict)
+
+
+@dataclass
+class SharedSignals:
+    """Toy representation of signals shared between devices."""
+    id: str
+    source: str
+    target: str
+    signals: Dict[str, Any] = field(default_factory=dict)
+    version: int = 0
+
+
+class EnergiBridge:
+    """Static helpers to map between GridResilience primitives and canonical forms."""
+
+    @staticmethod
+    def map_object(lp: LocalProblem) -> Object:
+        """Map a LocalProblem into an Object representation."""
+        return Object(id=lp.id, type="LocalProblem", properties={"description": lp.description, **lp.resources})
+
+    @staticmethod
+    def map_signals(sig: SharedSignals) -> Morphism:
+        """Map SharedSignals into a Morphism representation."""
+        return Morphism(id=sig.id, source=sig.source, target=sig.target, signals=sig.signals, version=sig.version)
+
+    @staticmethod
+    def map_delta(delta: PlanDelta) -> PlanDelta:
+        """Identity mapping for PlanDelta (pass-through in this sketch)."""
+        return delta
+
+
+__all__ = ["LocalProblem", "SharedSignals", "EnergiBridge"]