diff --git a/custom/command_client.go b/custom/command_client.go
index 12466ed..b4fb98d 100644
--- a/custom/command_client.go
+++ b/custom/command_client.go
@@ -9,23 +9,24 @@ import (
 )
 
 type CommandClientHandler struct {
+	name string
 	port int64
 }
 
 func (cch *CommandClientHandler) Connected() {
-	fmt.Println("connected")
+	fmt.Printf("[%s] CONNECTED\n", cch.name)
 }
 
 func (cch *CommandClientHandler) Disconnected(message string) {
-	fmt.Printf("disconnected: %s\n", message)
+	fmt.Printf("[%s] DISCONNECTED: %s\n", cch.name, message)
 }
 
 func (cch *CommandClientHandler) ClearLog() {
-	fmt.Println("clear log")
+	fmt.Printf("[%s] clear log\n", cch.name)
 }
 
 func (cch *CommandClientHandler) WriteLog(message string) {
-	fmt.Printf("new log: %s\n", message)
+	fmt.Printf("[%s] log: %s\n", cch.name, message)
 }
 
 func (cch *CommandClientHandler) WriteStatus(message *libbox.StatusMessage) {
@@ -77,9 +78,12 @@ func (cch *CommandClientHandler) WriteGroups(message libbox.OutboundGroupIterato
 }
 
 func (cch *CommandClientHandler) InitializeClashMode(modeList libbox.StringIterator, currentMode string) {
+	fmt.Printf("[%s] clash mode: %s\n", cch.name, currentMode)
 }
 
-func (cch *CommandClientHandler) UpdateClashMode(newMode string) {}
+func (cch *CommandClientHandler) UpdateClashMode(newMode string) {
+	fmt.Printf("[%s] update clash mode: %s\n", cch.name, newMode)
+}
 
 type OutboundGroup struct {
 	Tag      string               `json:"tag"`
diff --git a/custom/commands.go b/custom/commands.go
index c79c66d..e76565f 100644
--- a/custom/commands.go
+++ b/custom/commands.go
@@ -3,30 +3,30 @@ package main
 import "github.com/sagernet/sing-box/experimental/libbox"
 
 var (
-	statusCommand *libbox.CommandClient
-	groupCommand  *libbox.CommandClient
+	statusClient *libbox.CommandClient
+	groupClient  *libbox.CommandClient
 )
 
 func StartCommand(command int32, port int64) error {
 	switch command {
 	case libbox.CommandStatus:
-		statusCommand = libbox.NewCommandClient(
-			&CommandClientHandler{port: port},
+		statusClient = libbox.NewCommandClient(
+			&CommandClientHandler{port: port, name: "status"},
 			&libbox.CommandClientOptions{
 				Command:        libbox.CommandStatus,
 				StatusInterval: 1000000000,
 			},
 		)
-		return statusCommand.Connect()
+		return statusClient.Connect()
 	case libbox.CommandGroup:
-		groupCommand = libbox.NewCommandClient(
-			&CommandClientHandler{port: port},
+		groupClient = libbox.NewCommandClient(
+			&CommandClientHandler{port: port, name: "group"},
 			&libbox.CommandClientOptions{
 				Command:        libbox.CommandGroup,
 				StatusInterval: 1000000000,
 			},
 		)
-		return groupCommand.Connect()
+		return groupClient.Connect()
 	}
 	return nil
 }
@@ -34,12 +34,12 @@ func StartCommand(command int32, port int64) error {
 func StopCommand(command int32) error {
 	switch command {
 	case libbox.CommandStatus:
-		err := statusCommand.Disconnect()
-		statusCommand = nil
+		err := statusClient.Disconnect()
+		statusClient = nil
 		return err
 	case libbox.CommandGroup:
-		err := groupCommand.Disconnect()
-		groupCommand = nil
+		err := groupClient.Disconnect()
+		groupClient = nil
 		return err
 	}
 	return nil