diff --git a/forge_cli/cli.py b/forge_cli/cli.py
index b29b310..8296a63 100644
--- a/forge_cli/cli.py
+++ b/forge_cli/cli.py
@@ -455,7 +455,7 @@ def ref_cmd(
         raise typer.Exit(1)
 
     indent = None if compact else 2
-    typer.echo(json.dumps(incident.to_ref_envelope(), indent=indent))
+    typer.echo(json.dumps(incident.to_ref_envelope_model().to_dict(), indent=indent))
 
 
 @app.command()
diff --git a/forge_cli/mcp_server.py b/forge_cli/mcp_server.py
index 1ba24c0..46e9a55 100644
--- a/forge_cli/mcp_server.py
+++ b/forge_cli/mcp_server.py
@@ -331,7 +331,7 @@ def forge_incident_ref(incident_id: str) -> str:
     if incident is None:
         return f"No incident found matching '{incident_id}'."
 
-    return json.dumps(incident.to_ref_envelope(), indent=2)
+    return json.dumps(incident.to_ref_envelope_model().to_dict(), indent=2)
 
 
 @mcp.tool()
diff --git a/forge_cli/models.py b/forge_cli/models.py
index 94ceac8..bb1a052 100644
--- a/forge_cli/models.py
+++ b/forge_cli/models.py
@@ -491,6 +491,23 @@ def to_dict(self) -> dict[str, Any]:
         return asdict(self)
 
 
+@dataclass(frozen=True)
+class IncidentRefEnvelope:
+    """Typed Proofhouse shared-contract envelope for Forge IncidentRef output."""
+
+    contract_version: str
+    contract_name: str
+    producer_capability: str
+    producer_system: str
+    canonical_owner: str
+    issued_at: str
+    cache_policy: str
+    ref: IncidentRef
+
+    def to_dict(self) -> dict[str, Any]:
+        return asdict(self)
+
+
 @dataclass
 class Incident:
     id: str
@@ -549,6 +566,10 @@ def to_ref(self) -> IncidentRef:
 
     def to_ref_envelope(self) -> dict[str, Any]:
         """Project this incident into a Proofhouse V0.1 ref envelope."""
+        return self.to_ref_envelope_model().to_dict()
+
+    def to_ref_envelope_model(self) -> IncidentRefEnvelope:
+        """Project this incident into a typed Proofhouse V0.1 ref envelope."""
         return build_incident_ref_envelope(self)
 
     @classmethod
@@ -652,15 +673,15 @@ def build_incident_ref(incident: Incident) -> IncidentRef:
     )
 
 
-def build_incident_ref_envelope(incident: Incident) -> dict[str, Any]:
+def build_incident_ref_envelope(incident: Incident) -> IncidentRefEnvelope:
     """Wrap an IncidentRef in the Proofhouse shared-contract envelope."""
-    return {
-        "contract_version": PROOFHOUSE_SHARED_CONTRACT_VERSION,
-        "contract_name": "IncidentRef",
-        "producer_capability": "forge",
-        "producer_system": FORGE_PRODUCER_SYSTEM,
-        "canonical_owner": "forge",
-        "issued_at": incident.timestamp,
-        "cache_policy": "summary_snapshot",
-        "ref": build_incident_ref(incident).to_dict(),
-    }
+    return IncidentRefEnvelope(
+        contract_version=PROOFHOUSE_SHARED_CONTRACT_VERSION,
+        contract_name="IncidentRef",
+        producer_capability="forge",
+        producer_system=FORGE_PRODUCER_SYSTEM,
+        canonical_owner="forge",
+        issued_at=incident.timestamp,
+        cache_policy="summary_snapshot",
+        ref=build_incident_ref(incident),
+    )
diff --git a/tests/test_models.py b/tests/test_models.py
index 084f535..5ad6230 100644
--- a/tests/test_models.py
+++ b/tests/test_models.py
@@ -7,6 +7,7 @@
     PROOFHOUSE_SHARED_CONTRACT_VERSION,
     FailureType,
     Incident,
+    IncidentRefEnvelope,
     ISSUE_CLASS_VALUES,
     Severity,
     parse_observed_state,
@@ -288,6 +289,17 @@ def test_incident_ref_envelope_shape(sample_data):
     assert envelope["ref"]["organization_id"] == FORGE_UNSCOPED_ORGANIZATION_ID
 
 
+def test_incident_ref_envelope_has_typed_boundary_model(sample_data):
+    incident = Incident.from_dict(sample_data)
+    envelope = incident.to_ref_envelope_model()
+
+    assert isinstance(envelope, IncidentRefEnvelope)
+    assert envelope.contract_name == "IncidentRef"
+    assert envelope.producer_capability == "forge"
+    assert envelope.ref.incident_id == sample_data["id"]
+    assert envelope.to_dict() == incident.to_ref_envelope()
+
+
 def test_structured_document_operations_incident_roundtrip(sample_data):
     data = sample_data.copy()
     data.update(