diff --git a/cmd/doctor.go b/cmd/doctor.go
new file mode 100644
index 0000000..f8904f5
--- /dev/null
+++ b/cmd/doctor.go
@@ -0,0 +1,24 @@
+package cmd
+
+import (
+	"fmt"
+	"runtime"
+
+	"github.com/spf13/cobra"
+)
+
+var doctorCmd = &cobra.Command{
+	Use:   "doctor",
+	Short: "Check Codewise CLI environment",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println("Codewise CLI Doctor")
+		fmt.Println("-------------------")
+		fmt.Println("Go version:", runtime.Version())
+		fmt.Println("OS/Arch:", runtime.GOOS, runtime.GOARCH)
+		fmt.Println("Codewise version:", rootCmd.Version)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(doctorCmd)
+}