diff --git a/api/metadata/metadata.pb.go b/api/metadata/metadata.pb.go
index ce9b01574..11244ad92 100644
--- a/api/metadata/metadata.pb.go
+++ b/api/metadata/metadata.pb.go
@@ -1,8 +1,8 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
-// source: metadata.proto
+// 	protoc-gen-go v1.28.0
+// 	protoc        v3.19.4
+// source: metadata/metadata.proto
 
 package metadata
 
@@ -31,7 +31,7 @@ type ListServicesRequest struct {
 func (x *ListServicesRequest) Reset() {
 	*x = ListServicesRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_metadata_proto_msgTypes[0]
+		mi := &file_metadata_metadata_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -44,7 +44,7 @@ func (x *ListServicesRequest) String() string {
 func (*ListServicesRequest) ProtoMessage() {}
 
 func (x *ListServicesRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_metadata_proto_msgTypes[0]
+	mi := &file_metadata_metadata_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -57,7 +57,7 @@ func (x *ListServicesRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListServicesRequest.ProtoReflect.Descriptor instead.
 func (*ListServicesRequest) Descriptor() ([]byte, []int) {
-	return file_metadata_proto_rawDescGZIP(), []int{0}
+	return file_metadata_metadata_proto_rawDescGZIP(), []int{0}
 }
 
 type ListServicesReply struct {
@@ -72,7 +72,7 @@ type ListServicesReply struct {
 func (x *ListServicesReply) Reset() {
 	*x = ListServicesReply{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_metadata_proto_msgTypes[1]
+		mi := &file_metadata_metadata_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -85,7 +85,7 @@ func (x *ListServicesReply) String() string {
 func (*ListServicesReply) ProtoMessage() {}
 
 func (x *ListServicesReply) ProtoReflect() protoreflect.Message {
-	mi := &file_metadata_proto_msgTypes[1]
+	mi := &file_metadata_metadata_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -98,7 +98,7 @@ func (x *ListServicesReply) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListServicesReply.ProtoReflect.Descriptor instead.
 func (*ListServicesReply) Descriptor() ([]byte, []int) {
-	return file_metadata_proto_rawDescGZIP(), []int{1}
+	return file_metadata_metadata_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *ListServicesReply) GetServices() []string {
@@ -126,7 +126,7 @@ type GetServiceDescRequest struct {
 func (x *GetServiceDescRequest) Reset() {
 	*x = GetServiceDescRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_metadata_proto_msgTypes[2]
+		mi := &file_metadata_metadata_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -139,7 +139,7 @@ func (x *GetServiceDescRequest) String() string {
 func (*GetServiceDescRequest) ProtoMessage() {}
 
 func (x *GetServiceDescRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_metadata_proto_msgTypes[2]
+	mi := &file_metadata_metadata_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -152,7 +152,7 @@ func (x *GetServiceDescRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetServiceDescRequest.ProtoReflect.Descriptor instead.
 func (*GetServiceDescRequest) Descriptor() ([]byte, []int) {
-	return file_metadata_proto_rawDescGZIP(), []int{2}
+	return file_metadata_metadata_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *GetServiceDescRequest) GetName() string {
@@ -173,7 +173,7 @@ type GetServiceDescReply struct {
 func (x *GetServiceDescReply) Reset() {
 	*x = GetServiceDescReply{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_metadata_proto_msgTypes[3]
+		mi := &file_metadata_metadata_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -186,7 +186,7 @@ func (x *GetServiceDescReply) String() string {
 func (*GetServiceDescReply) ProtoMessage() {}
 
 func (x *GetServiceDescReply) ProtoReflect() protoreflect.Message {
-	mi := &file_metadata_proto_msgTypes[3]
+	mi := &file_metadata_metadata_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -199,7 +199,7 @@ func (x *GetServiceDescReply) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use GetServiceDescReply.ProtoReflect.Descriptor instead.
 func (*GetServiceDescReply) Descriptor() ([]byte, []int) {
-	return file_metadata_proto_rawDescGZIP(), []int{3}
+	return file_metadata_metadata_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *GetServiceDescReply) GetFileDescSet() *descriptorpb.FileDescriptorSet {
@@ -209,74 +209,74 @@ func (x *GetServiceDescReply) GetFileDescSet() *descriptorpb.FileDescriptorSet {
 	return nil
 }
 
-var File_metadata_proto protoreflect.FileDescriptor
-
-var file_metadata_proto_rawDesc = []byte{
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+var File_metadata_metadata_proto protoreflect.FileDescriptor
+
+var file_metadata_metadata_proto_rawDesc = []byte{
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 }
 
 var (
-	file_metadata_proto_rawDescOnce sync.Once
-	file_metadata_proto_rawDescData = file_metadata_proto_rawDesc
+	file_metadata_metadata_proto_rawDescOnce sync.Once
+	file_metadata_metadata_proto_rawDescData = file_metadata_metadata_proto_rawDesc
 )
 
-func file_metadata_proto_rawDescGZIP() []byte {
-	file_metadata_proto_rawDescOnce.Do(func() {
-		file_metadata_proto_rawDescData = protoimpl.X.CompressGZIP(file_metadata_proto_rawDescData)
+func file_metadata_metadata_proto_rawDescGZIP() []byte {
+	file_metadata_metadata_proto_rawDescOnce.Do(func() {
+		file_metadata_metadata_proto_rawDescData = protoimpl.X.CompressGZIP(file_metadata_metadata_proto_rawDescData)
 	})
-	return file_metadata_proto_rawDescData
+	return file_metadata_metadata_proto_rawDescData
 }
 
-var file_metadata_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
-var file_metadata_proto_goTypes = []interface{}{
+var file_metadata_metadata_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_metadata_metadata_proto_goTypes = []interface{}{
 	(*ListServicesRequest)(nil),            // 0: kratos.api.ListServicesRequest
 	(*ListServicesReply)(nil),              // 1: kratos.api.ListServicesReply
 	(*GetServiceDescRequest)(nil),          // 2: kratos.api.GetServiceDescRequest
 	(*GetServiceDescReply)(nil),            // 3: kratos.api.GetServiceDescReply
 	(*descriptorpb.FileDescriptorSet)(nil), // 4: google.protobuf.FileDescriptorSet
 }
-var file_metadata_proto_depIdxs = []int32{
+var file_metadata_metadata_proto_depIdxs = []int32{
 	4, // 0: kratos.api.GetServiceDescReply.file_desc_set:type_name -> google.protobuf.FileDescriptorSet
 	0, // 1: kratos.api.Metadata.ListServices:input_type -> kratos.api.ListServicesRequest
 	2, // 2: kratos.api.Metadata.GetServiceDesc:input_type -> kratos.api.GetServiceDescRequest
@@ -289,13 +289,13 @@ var file_metadata_proto_depIdxs = []int32{
 	0, // [0:1] is the sub-list for field type_name
 }
 
-func init() { file_metadata_proto_init() }
-func file_metadata_proto_init() {
-	if File_metadata_proto != nil {
+func init() { file_metadata_metadata_proto_init() }
+func file_metadata_metadata_proto_init() {
+	if File_metadata_metadata_proto != nil {
 		return
 	}
 	if !protoimpl.UnsafeEnabled {
-		file_metadata_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+		file_metadata_metadata_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ListServicesRequest); i {
 			case 0:
 				return &v.state
@@ -307,7 +307,7 @@ func file_metadata_proto_init() {
 				return nil
 			}
 		}
-		file_metadata_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+		file_metadata_metadata_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ListServicesReply); i {
 			case 0:
 				return &v.state
@@ -319,7 +319,7 @@ func file_metadata_proto_init() {
 				return nil
 			}
 		}
-		file_metadata_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+		file_metadata_metadata_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetServiceDescRequest); i {
 			case 0:
 				return &v.state
@@ -331,7 +331,7 @@ func file_metadata_proto_init() {
 				return nil
 			}
 		}
-		file_metadata_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+		file_metadata_metadata_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*GetServiceDescReply); i {
 			case 0:
 				return &v.state
@@ -348,18 +348,18 @@ func file_metadata_proto_init() {
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_metadata_proto_rawDesc,
+			RawDescriptor: file_metadata_metadata_proto_rawDesc,
 			NumEnums:      0,
 			NumMessages:   4,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
-		GoTypes:           file_metadata_proto_goTypes,
-		DependencyIndexes: file_metadata_proto_depIdxs,
-		MessageInfos:      file_metadata_proto_msgTypes,
+		GoTypes:           file_metadata_metadata_proto_goTypes,
+		DependencyIndexes: file_metadata_metadata_proto_depIdxs,
+		MessageInfos:      file_metadata_metadata_proto_msgTypes,
 	}.Build()
-	File_metadata_proto = out.File
-	file_metadata_proto_rawDesc = nil
-	file_metadata_proto_goTypes = nil
-	file_metadata_proto_depIdxs = nil
+	File_metadata_metadata_proto = out.File
+	file_metadata_metadata_proto_rawDesc = nil
+	file_metadata_metadata_proto_goTypes = nil
+	file_metadata_metadata_proto_depIdxs = nil
 }
diff --git a/api/metadata/metadata_grpc.pb.go b/api/metadata/metadata_grpc.pb.go
index c110fe06f..1b3e6a5fc 100644
--- a/api/metadata/metadata_grpc.pb.go
+++ b/api/metadata/metadata_grpc.pb.go
@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v3.19.4
+// source: metadata/metadata.proto
 
 package metadata
 
@@ -137,5 +141,5 @@ var Metadata_ServiceDesc = grpc.ServiceDesc{
 		},
 	},
 	Streams:  []grpc.StreamDesc{},
-	Metadata: "metadata.proto",
+	Metadata: "metadata/metadata.proto",
 }
diff --git a/api/metadata/metadata_http.pb.go b/api/metadata/metadata_http.pb.go
index c241e376a..91636b48d 100644
--- a/api/metadata/metadata_http.pb.go
+++ b/api/metadata/metadata_http.pb.go
@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go-http. DO NOT EDIT.
 // versions:
-// protoc-gen-go-http v2.0.0
+// protoc-gen-go-http v2.3.0
 
 package metadata
 
diff --git a/errors/errors.pb.go b/errors/errors.pb.go
index 0f4e28f23..ec383e130 100644
--- a/errors/errors.pb.go
+++ b/errors/errors.pb.go
@@ -1,8 +1,8 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
+// 	protoc-gen-go v1.28.0
 // 	protoc        v3.19.4
-// source: errors.proto
+// source: errors/errors.proto
 
 package errors
 
@@ -35,7 +35,7 @@ type Status struct {
 func (x *Status) Reset() {
 	*x = Status{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_errors_proto_msgTypes[0]
+		mi := &file_errors_errors_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -48,7 +48,7 @@ func (x *Status) String() string {
 func (*Status) ProtoMessage() {}
 
 func (x *Status) ProtoReflect() protoreflect.Message {
-	mi := &file_errors_proto_msgTypes[0]
+	mi := &file_errors_errors_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -61,7 +61,7 @@ func (x *Status) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Status.ProtoReflect.Descriptor instead.
 func (*Status) Descriptor() ([]byte, []int) {
-	return file_errors_proto_rawDescGZIP(), []int{0}
+	return file_errors_errors_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *Status) GetCode() int32 {
@@ -92,14 +92,14 @@ func (x *Status) GetMetadata() map[string]string {
 	return nil
 }
 
-var file_errors_proto_extTypes = []protoimpl.ExtensionInfo{
+var file_errors_errors_proto_extTypes = []protoimpl.ExtensionInfo{
 	{
 		ExtendedType:  (*descriptorpb.EnumOptions)(nil),
 		ExtensionType: (*int32)(nil),
 		Field:         1108,
 		Name:          "errors.default_code",
 		Tag:           "varint,1108,opt,name=default_code",
-		Filename:      "errors.proto",
+		Filename:      "errors/errors.proto",
 	},
 	{
 		ExtendedType:  (*descriptorpb.EnumValueOptions)(nil),
@@ -107,77 +107,78 @@ var file_errors_proto_extTypes = []protoimpl.ExtensionInfo{
 		Field:         1109,
 		Name:          "errors.code",
 		Tag:           "varint,1109,opt,name=code",
-		Filename:      "errors.proto",
+		Filename:      "errors/errors.proto",
 	},
 }
 
 // Extension fields to descriptorpb.EnumOptions.
 var (
 	// optional int32 default_code = 1108;
-	E_DefaultCode = &file_errors_proto_extTypes[0]
+	E_DefaultCode = &file_errors_errors_proto_extTypes[0]
 )
 
 // Extension fields to descriptorpb.EnumValueOptions.
 var (
 	// optional int32 code = 1109;
-	E_Code = &file_errors_proto_extTypes[1]
+	E_Code = &file_errors_errors_proto_extTypes[1]
 )
 
-var File_errors_proto protoreflect.FileDescriptor
-
-var file_errors_proto_rawDesc = []byte{
-	0x0a, 0x0c, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x06,
-	0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x1a, 0x20, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70,
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-	0x72, 0x72, 0x6f, 0x72, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+var File_errors_errors_proto protoreflect.FileDescriptor
+
+var file_errors_errors_proto_rawDesc = []byte{
+	0x0a, 0x13, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x2f, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x2e,
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+	0xc5, 0x01, 0x0a, 0x06, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x12, 0x12, 0x0a, 0x04, 0x63, 0x6f,
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+	0x65, 0x42, 0x59, 0x0a, 0x18, 0x63, 0x6f, 0x6d, 0x2e, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e,
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+	0x2c, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x67, 0x6f, 0x2d, 0x6b,
+	0x72, 0x61, 0x74, 0x6f, 0x73, 0x2f, 0x6b, 0x72, 0x61, 0x74, 0x6f, 0x73, 0x2f, 0x76, 0x32, 0x2f,
+	0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x3b, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0xa2, 0x02, 0x0c,
+	0x4b, 0x72, 0x61, 0x74, 0x6f, 0x73, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
-	file_errors_proto_rawDescOnce sync.Once
-	file_errors_proto_rawDescData = file_errors_proto_rawDesc
+	file_errors_errors_proto_rawDescOnce sync.Once
+	file_errors_errors_proto_rawDescData = file_errors_errors_proto_rawDesc
 )
 
-func file_errors_proto_rawDescGZIP() []byte {
-	file_errors_proto_rawDescOnce.Do(func() {
-		file_errors_proto_rawDescData = protoimpl.X.CompressGZIP(file_errors_proto_rawDescData)
+func file_errors_errors_proto_rawDescGZIP() []byte {
+	file_errors_errors_proto_rawDescOnce.Do(func() {
+		file_errors_errors_proto_rawDescData = protoimpl.X.CompressGZIP(file_errors_errors_proto_rawDescData)
 	})
-	return file_errors_proto_rawDescData
+	return file_errors_errors_proto_rawDescData
 }
 
-var file_errors_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_errors_proto_goTypes = []interface{}{
+var file_errors_errors_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_errors_errors_proto_goTypes = []interface{}{
 	(*Status)(nil),                        // 0: errors.Status
 	nil,                                   // 1: errors.Status.MetadataEntry
 	(*descriptorpb.EnumOptions)(nil),      // 2: google.protobuf.EnumOptions
 	(*descriptorpb.EnumValueOptions)(nil), // 3: google.protobuf.EnumValueOptions
 }
-var file_errors_proto_depIdxs = []int32{
+var file_errors_errors_proto_depIdxs = []int32{
 	1, // 0: errors.Status.metadata:type_name -> errors.Status.MetadataEntry
 	2, // 1: errors.default_code:extendee -> google.protobuf.EnumOptions
 	3, // 2: errors.code:extendee -> google.protobuf.EnumValueOptions
@@ -188,13 +189,13 @@ var file_errors_proto_depIdxs = []int32{
 	0, // [0:1] is the sub-list for field type_name
 }
 
-func init() { file_errors_proto_init() }
-func file_errors_proto_init() {
-	if File_errors_proto != nil {
+func init() { file_errors_errors_proto_init() }
+func file_errors_errors_proto_init() {
+	if File_errors_errors_proto != nil {
 		return
 	}
 	if !protoimpl.UnsafeEnabled {
-		file_errors_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+		file_errors_errors_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Status); i {
 			case 0:
 				return &v.state
@@ -211,19 +212,19 @@ func file_errors_proto_init() {
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_errors_proto_rawDesc,
+			RawDescriptor: file_errors_errors_proto_rawDesc,
 			NumEnums:      0,
 			NumMessages:   2,
 			NumExtensions: 2,
 			NumServices:   0,
 		},
-		GoTypes:           file_errors_proto_goTypes,
-		DependencyIndexes: file_errors_proto_depIdxs,
-		MessageInfos:      file_errors_proto_msgTypes,
-		ExtensionInfos:    file_errors_proto_extTypes,
+		GoTypes:           file_errors_errors_proto_goTypes,
+		DependencyIndexes: file_errors_errors_proto_depIdxs,
+		MessageInfos:      file_errors_errors_proto_msgTypes,
+		ExtensionInfos:    file_errors_errors_proto_extTypes,
 	}.Build()
-	File_errors_proto = out.File
-	file_errors_proto_rawDesc = nil
-	file_errors_proto_goTypes = nil
-	file_errors_proto_depIdxs = nil
+	File_errors_errors_proto = out.File
+	file_errors_errors_proto_rawDesc = nil
+	file_errors_errors_proto_goTypes = nil
+	file_errors_errors_proto_depIdxs = nil
 }