diff --git a/deps/ox/src/ox/mc/optype.hpp b/deps/ox/src/ox/mc/optype.hpp
new file mode 100644
index 00000000..1cd88743
--- /dev/null
+++ b/deps/ox/src/ox/mc/optype.hpp
@@ -0,0 +1,18 @@
+/*
+ * Copyright 2015 - 2017 gtalent2@gmail.com
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+namespace ox {
+
+enum class OpType {
+	Read = 0,
+	Write = 1
+};
+
+}
diff --git a/deps/ox/src/ox/mc/read.hpp b/deps/ox/src/ox/mc/read.hpp
index 11b39287..ca521d32 100644
--- a/deps/ox/src/ox/mc/read.hpp
+++ b/deps/ox/src/ox/mc/read.hpp
@@ -11,6 +11,7 @@
 #include <ox/std/byteswap.hpp>
 #include <ox/std/string.hpp>
 #include "err.hpp"
+#include "optype.hpp"
 #include "presencemask.hpp"
 
 namespace ox {
@@ -49,6 +50,10 @@ class MetalClawReader {
 
 		void setFields(int fields);
 
+      OpType opType() {
+          return OpType::Read;
+      }
+
 	private:
 		template<typename I>
 		int readInteger(I *val);
diff --git a/deps/ox/src/ox/mc/write.hpp b/deps/ox/src/ox/mc/write.hpp
index 8380b3c7..8aebf220 100644
--- a/deps/ox/src/ox/mc/write.hpp
+++ b/deps/ox/src/ox/mc/write.hpp
@@ -11,6 +11,7 @@
 #include <ox/std/string.hpp>
 #include <ox/std/types.hpp>
 #include "err.hpp"
+#include "optype.hpp"
 #include "presencemask.hpp"
 
 namespace ox {
@@ -49,6 +50,10 @@ class MetalClawWriter {
 
 		void setFields(int fields);
 
+      OpType opType() {
+          return OpType::Write;
+      }
+
 	private:
 		template<typename I>
 		int appendInteger(I val);