diff --git a/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/EquipmentTagRefResolver.cs b/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/EquipmentTagRefResolver.cs
index d34284d7..500b31f0 100644
--- a/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/EquipmentTagRefResolver.cs
+++ b/src/Core/ZB.MOM.WW.OtOpcUa.Core.Abstractions/EquipmentTagRefResolver.cs
@@ -57,4 +57,10 @@ public sealed class EquipmentTagRefResolver<TDef> where TDef : class
 /// <param name="RawPath">The tag's cluster-scoped RawPath — the driver wire reference / identity.</param>
 /// <param name="TagConfig">The tag's schemaless driver-specific <c>TagConfig</c> JSON (the dialled address).</param>
 /// <param name="WriteIdempotent">Whether writes to this tag are safe to replay (R2 resilience contract).</param>
-public sealed record RawTagEntry(string RawPath, string TagConfig, bool WriteIdempotent);
+/// <param name="DeviceName">
+///     The name of the <c>Device</c> this tag lives under (the RawPath's device segment). Multi-device
+///     drivers route the tag to its device/connection by this name; single-device drivers ignore it.
+///     Populated by the deploy artifact (which built the RawPath and therefore knows the device);
+///     defaults to empty for callers that don't need device routing.
+/// </param>
+public sealed record RawTagEntry(string RawPath, string TagConfig, bool WriteIdempotent, string DeviceName = "");