diff --git a/src/crisisguard/__init__.py b/src/crisisguard/__init__.py
index 699808a..3ded657 100644
--- a/src/crisisguard/__init__.py
+++ b/src/crisisguard/__init__.py
@@ -1,5 +1,6 @@
 from .core import LocalPlan, SharedSignals, PlanDelta, GovernanceLog
 from .registry import GraphOfContracts
+from .interop import to_canonical_ir
 
 __all__ = [
     "LocalPlan",
@@ -7,4 +8,5 @@ __all__ = [
     "PlanDelta",
     "GovernanceLog",
     "GraphOfContracts",
+    "to_canonical_ir",
 ]
diff --git a/src/crisisguard/interop.py b/src/crisisguard/interop.py
new file mode 100644
index 0000000..8ecea0f
--- /dev/null
+++ b/src/crisisguard/interop.py
@@ -0,0 +1,42 @@
+"""Interoperability helpers for CrisisGuard canonical IR.
+
+This module provides a tiny, well-scoped bridge that maps CrisisGuard
+primitives (LocalPlan, PlanDelta, SharedSignals) into a lightweight
+Interoperability Representation (IR). The IR is designed to be simple,
+deterministic, and suitable for offline or cross-domain adapters that need
+to interoperate without requiring a full networked graph of contracts.
+
+The function `to_canonical_ir` returns a dictionary with two sections:
+- Objects: canonical representation of a LocalPlan
+- Morphisms: a list of relevant delta and signal morphisms, when provided
+"""
+
+from __future__ import annotations
+
+from crisisguard.core import LocalPlan, PlanDelta, SharedSignals
+
+
+def to_canonical_ir(plan: LocalPlan, delta: PlanDelta | None = None, signals: SharedSignals | None = None) -> dict:
+    """Convert CrisisGuard primitives to a canonical IR dictionary.
+
+    - plan is always represented under Objects.LocalPlan
+    - delta (if provided) is appended under Morphisms as PlanDelta payload
+    - signals (if provided) is appended under Morphisms as SharedSignals payload
+    The structure is intentionally minimal to ease cross-domain adapters and
+    offline reconciliation.
+    """
+
+    ir: dict = {
+        "Objects": {
+            "LocalPlan": plan.to_dict(),
+        },
+        "Morphisms": [],
+    }
+
+    if delta is not None:
+        ir["Morphisms"].append({"PlanDelta": delta.to_dict()})
+
+    if signals is not None:
+        ir["Morphisms"].append({"SharedSignals": signals.to_dict()})
+
+    return ir