diff --git a/protos/common/message_element.proto b/protos/common/message_element.proto
index 6475d9f..e7d68cd 100644
--- a/protos/common/message_element.proto
+++ b/protos/common/message_element.proto
@@ -90,11 +90,7 @@ message BubbleFaceElement {
 }
 
 message ReplyElement {
-  oneof id {
-    string message_id = 1; // 回复的消息id
-    string request_id = 3;
-    string notice_id = 3;
-  }
+  string message_id = 1; // 回复的消息id
 }
 
 message ImageElement {
diff --git a/protos/message/message.proto b/protos/message/message.proto
index c934284..ef69bee 100644
--- a/protos/message/message.proto
+++ b/protos/message/message.proto
@@ -35,6 +35,11 @@ message SendMessageRequest {
   kritor.common.Contact contact = 1; // 发送目标
   repeated kritor.common.Element elements = 2; // 发的什么东西
   optional uint32 retry_count = 3; // 重试次数
+
+  // passive_id
+  optional string message_id = 4;
+  optional string notice_id = 5;
+  optional string request_id = 6;
 }
 
 message SendMessageResponse {
@@ -43,14 +48,14 @@ message SendMessageResponse {
 }
 
 message SendMessageByResIdRequest {
-  kritor.common.Contact contact = 1; // 发送目标
-  string res_id = 2; // 资源ID
-  optional uint32 retry_count = 3; // 重试次数
+  kritor.common.Contact contact = 1;
+  string res_id = 2;
+  optional uint32 retry_count = 3;
 }
 
 message SendMessageByResIdResponse {
-  string message_id = 1; // 发送成功后的消息ID
-  uint32 message_time = 2; // 发送时间
+  string message_id = 1;
+  uint32 message_time = 2;
 }
 
 message SetMessageReadRequest {
diff --git a/protos/process/process.proto b/protos/process/process.proto
new file mode 100644
index 0000000..7a1dcd3
--- /dev/null
+++ b/protos/process/process.proto
@@ -0,0 +1,40 @@
+syntax = "proto3";
+
+package kritor.process;
+
+option csharp_namespace = "Kritor.Process";
+option java_multiple_files = true;
+option java_package = "io.kritor.process";
+option go_package = "grpc/kritor/process";
+
+service ProcessService {
+  rpc SetFriendApplyResult(SetFriendApplyResultRequest) returns (SetFriendApplyResultResponse);
+  rpc SetGroupApplyResult(SetGroupApplyResultRequest) returns (SetGroupApplyResultResponse);
+  rpc SetInvitedJoinGroupResult(SetInvitedJoinGroupResultRequest) returns (SetInvitedJoinGroupResultResponse);
+}
+
+message SetFriendApplyResultRequest {
+  string request_id = 1;
+  bool is_approve = 2;
+  optional string remark = 3; // 同意时可选
+}
+
+message SetFriendApplyResultResponse {
+}
+
+message SetGroupApplyResultRequest {
+  string request_id = 1;
+  bool is_approve = 2;
+  optional string deny_reason = 3; // 拒绝时可选
+}
+
+message SetGroupApplyResultResponse {
+}
+
+message SetInvitedJoinGroupResultRequest {
+  string request_id = 1;
+  bool is_approve = 2;
+}
+
+message SetInvitedJoinGroupResultResponse {
+}
\ No newline at end of file