diff --git a/Makefile b/Makefile
index f95598cb..d2e2177a 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,7 @@ install-plugins:
 	GO111MODULE=off go get github.com/gogo/protobuf/protoc-gen-gofast
 	go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
 	go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+	go install github.com/go-kratos/kratos/cmd/protoc-gen-go-errors/v2@latest
 	npm install
 	cargo install protoc-gen-prost-crate
 
diff --git a/buf.gen.yaml b/buf.gen.yaml
index d44c0ff2..cddb22e4 100644
--- a/buf.gen.yaml
+++ b/buf.gen.yaml
@@ -20,6 +20,10 @@ plugins:
     out: pkg
     opt:
       - paths=source_relative
+  - name: go-errors
+    out: pkg
+    opt:
+      - paths=source_relative
 
   #JS
   - remote: buf.build/protocolbuffers/plugins/js:v3.19.1-1
diff --git a/proto/buf.yaml b/proto/buf.yaml
index 1a519456..fd185cd9 100644
--- a/proto/buf.yaml
+++ b/proto/buf.yaml
@@ -5,3 +5,6 @@ breaking:
 lint:
   use:
     - DEFAULT
+  ignore_only:
+    PACKAGE_VERSION_SUFFIX:
+      - errors/errors.proto
\ No newline at end of file
diff --git a/proto/errors/errors.proto b/proto/errors/errors.proto
new file mode 100644
index 00000000..91e53022
--- /dev/null
+++ b/proto/errors/errors.proto
@@ -0,0 +1,25 @@
+syntax = "proto3";
+
+package errors;
+
+import "google/protobuf/descriptor.proto";
+
+option go_package = "github.com/go-kratos/kratos/v2/errors;errors";
+option java_multiple_files = true;
+option java_package = "com.github.kratos.errors";
+option objc_class_prefix = "KratosErrors";
+
+message Error {
+  int32 code = 1;
+  string reason = 2;
+  string message = 3;
+  map<string, string> metadata = 4;
+}
+
+extend google.protobuf.EnumOptions {
+  int32 default_code = 1108;
+}
+
+extend google.protobuf.EnumValueOptions {
+  int32 code = 1109;
+}
diff --git a/proto/librarian/sephirah/v1/errors.proto b/proto/librarian/sephirah/v1/errors.proto
new file mode 100644
index 00000000..1ef8e06b
--- /dev/null
+++ b/proto/librarian/sephirah/v1/errors.proto
@@ -0,0 +1,22 @@
+syntax = "proto3";
+
+package librarian.sephirah.v1;
+
+import "errors/errors.proto";
+
+option csharp_namespace = "TuiHub.Protos.Librarian.Sephirah.V1";
+option go_package = "github.com/tuihub/librarian/sephirah;v1";
+
+enum ErrorReason {
+  option (errors.default_code) = 500;
+
+  ERROR_REASON_UNSPECIFIED = 0 [(errors.code) = 500];
+
+  ERROR_REASON_BAD_REQUEST = 1 [(errors.code) = 400];
+  ERROR_REASON_UNAUTHORIZED = 2 [(errors.code) = 401];
+  ERROR_REASON_FORBIDDEN = 3 [(errors.code) = 403];
+  ERROR_REASON_NOT_FOUND = 4 [(errors.code) = 404];
+  ERROR_REASON_METHOD_NOT_ALLOWED = 5 [(errors.code) = 405];
+  ERROR_REASON_NOT_IMPLEMENTED = 6 [(errors.code) = 501];
+  ERROR_REASON_BAD_GATEWAY = 7 [(errors.code) = 502];
+}