diff --git a/deps/ox/src/ox/mc/write.hpp b/deps/ox/src/ox/mc/write.hpp
index 8bf67fc5..0f8002a8 100644
--- a/deps/ox/src/ox/mc/write.hpp
+++ b/deps/ox/src/ox/mc/write.hpp
@@ -406,7 +406,7 @@ ox::Error MetalClawWriter<Writer>::finalize() noexcept {
 	return {};
 }
 
-Result<Buffer> writeMC(Writer_c auto &writer, auto &val) noexcept {
+Result<Buffer> writeMC(Writer_c auto &writer, const auto &val) noexcept {
 	MetalClawWriter mcWriter(writer);
 	ModelHandlerInterface handler{&mcWriter};
 	oxReturnError(model(&handler, &val));
@@ -414,7 +414,7 @@ Result<Buffer> writeMC(Writer_c auto &writer, auto &val) noexcept {
 	return {};
 }
 
-Result<Buffer> writeMC(auto *val, std::size_t buffReserveSz = 2 * units::KB) noexcept {
+Result<Buffer> writeMC(const auto *val, std::size_t buffReserveSz = 2 * units::KB) noexcept {
 	Buffer buff(buffReserveSz);
 	BufferWriter bw(&buff, 0);
 	oxReturnError(writeMC(bw, *val));
@@ -422,7 +422,7 @@ Result<Buffer> writeMC(auto *val, std::size_t buffReserveSz = 2 * units::KB) noe
 	return buff;
 }
 
-Error writeMC(char *buff, std::size_t buffLen, auto *val, std::size_t *sizeOut = nullptr) noexcept {
+Error writeMC(char *buff, std::size_t buffLen, const auto *val, std::size_t *sizeOut = nullptr) noexcept {
 	CharBuffWriter bw(buff, buffLen);
 	oxReturnError(writeMC(bw, *val));
 	if (sizeOut) {
diff --git a/deps/ox/src/ox/model/desctypes.hpp b/deps/ox/src/ox/model/desctypes.hpp
index 67bbfa45..e2169e0d 100644
--- a/deps/ox/src/ox/model/desctypes.hpp
+++ b/deps/ox/src/ox/model/desctypes.hpp
@@ -79,6 +79,9 @@ constexpr Error model(T *io, CommonPtrWith<Subscript> auto *type) noexcept {
 	if constexpr(T::opType() == OpType::Reflect) {
 		uint32_t st = 0;
 		oxReturnError(io->field("subscriptType", &st));
+	} else if constexpr(T::opType() == OpType::Write) {
+		auto pt = type ? static_cast<uint8_t>(type->subscriptType) : 0;
+		oxReturnError(io->field("subscriptType", &pt));
 	} else {
 		auto pt = type ? static_cast<uint32_t>(type->subscriptType) : 0;
 		oxReturnError(io->field("subscriptType", &pt));
@@ -186,6 +189,9 @@ constexpr Error model(T *io, CommonPtrWith<DescriptorType> auto *type) noexcept
 	if constexpr(T::opType() == OpType::Reflect) {
 		uint8_t pt = 0;
 		oxReturnError(io->field("primitiveType", &pt));
+	} else if constexpr(T::opType() == OpType::Write) {
+		auto pt = type ? static_cast<uint8_t>(type->primitiveType) : 0;
+		oxReturnError(io->field("primitiveType", &pt));
 	} else {
 		auto pt = type ? static_cast<uint8_t>(type->primitiveType) : 0;
 		oxReturnError(io->field("primitiveType", &pt));