diff --git a/TabooLib R2.iml b/TabooLib R2.iml
index c709ad4..305d1b0 100644
--- a/TabooLib R2.iml	
+++ b/TabooLib R2.iml	
@@ -1,5 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module external.system.id="GRADLE" type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="android-gradle" name="Android-Gradle">
+      <configuration>
+        <option name="GRADLE_PROJECT_PATH" value=":" />
+      </configuration>
+    </facet>
+  </component>
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$" />
diff --git a/src/main/scala/io/izzel/taboolib/module/command/base/BaseMainCommand.java b/src/main/scala/io/izzel/taboolib/module/command/base/BaseMainCommand.java
index 596957f..770d82a 100644
--- a/src/main/scala/io/izzel/taboolib/module/command/base/BaseMainCommand.java
+++ b/src/main/scala/io/izzel/taboolib/module/command/base/BaseMainCommand.java
@@ -16,10 +16,7 @@ import org.bukkit.scheduler.BukkitRunnable;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.Comparator;
-import java.util.List;
-import java.util.Objects;
+import java.util.*;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.stream.Collectors;
 
@@ -52,11 +49,42 @@ public abstract class BaseMainCommand implements CommandExecutor, TabExecutor {
         baseMainCommand.getLinkClasses().forEach(clazz -> java.util.Arrays.stream(clazz.getDeclaredMethods()).filter(method -> method.getAnnotation(SubCommand.class) != null).forEach(methods::add));
         if (methods.size() > 0) {
             methods.sort(Comparator.comparingDouble(a -> a.getAnnotation(SubCommand.class).priority()));
-            methods.forEach(x -> {
+            methods.forEach(method -> {
+                BaseSubCommand subCommand = null;
                 try {
-                    x.setAccessible(true);
-                    x.invoke(baseMainCommand);
-                } catch (Exception ignored) {
+                    method.setAccessible(true);
+                    // lite parameter
+                    if (Arrays.equals(method.getParameterTypes(), new Class[] {CommandSender.class, String[].class})) {
+                        subCommand = new BaseSubCommand() {
+                            @Override
+                            public void onCommand(CommandSender sender, Command command, String label, String[] args) {
+                                try {
+                                    method.invoke(baseMainCommand, sender, args);
+                                } catch (Throwable t) {
+                                    t.printStackTrace();
+                                }
+                            }
+                        };
+                    }
+                    // fully parameter
+                    else if (Arrays.equals(method.getParameterTypes(), new Class[] {CommandSender.class, Command.class, String.class, String[].class})) {
+                        subCommand = new BaseSubCommand() {
+                            @Override
+                            public void onCommand(CommandSender sender, Command command, String label, String[] args) {
+                                try {
+                                    method.invoke(baseMainCommand, sender, command, label, args);
+                                } catch (Throwable t) {
+                                    t.printStackTrace();
+                                }
+                            }
+                        };
+                    }
+                    if (subCommand != null) {
+                        subCommand.setLabel(method.getName());
+                        subCommand.setAnnotation(method.getAnnotation(SubCommand.class));
+                        baseMainCommand.registerSubCommand(subCommand);
+                    }
+                } catch (Throwable ignored) {
                 }
             });
         }
@@ -68,8 +96,9 @@ public abstract class BaseMainCommand implements CommandExecutor, TabExecutor {
                     commandField.getField().setAccessible(true);
                     BaseSubCommand subCommand = (BaseSubCommand) commandField.getField().get(commandField.getParent().newInstance());
                     subCommand.setLabel(commandField.getField().getName());
+                    subCommand.setAnnotation(commandField.getField().getAnnotation(SubCommand.class));
                     baseMainCommand.registerSubCommand(subCommand);
-                } catch (Exception ignored) {
+                } catch (Throwable ignored) {
                 }
             });
         }
@@ -230,7 +259,7 @@ public abstract class BaseMainCommand implements CommandExecutor, TabExecutor {
     }
 
     private boolean hasPermission(CommandSender sender, BaseSubCommand baseSubCommand) {
-        return baseSubCommand == null || baseSubCommand.getPermission() == null || sender.hasPermission(baseSubCommand.getPermission());
+        return baseSubCommand == null || Strings.isEmpty(baseSubCommand.getPermission()) || sender.hasPermission(baseSubCommand.getPermission());
     }
 
     private String[] removeFirst(String[] args) {
diff --git a/src/main/scala/io/izzel/taboolib/module/command/base/BaseSubCommand.java b/src/main/scala/io/izzel/taboolib/module/command/base/BaseSubCommand.java
index 6d6b40e..83076d5 100644
--- a/src/main/scala/io/izzel/taboolib/module/command/base/BaseSubCommand.java
+++ b/src/main/scala/io/izzel/taboolib/module/command/base/BaseSubCommand.java
@@ -1,6 +1,7 @@
 package io.izzel.taboolib.module.command.base;
 
 import io.izzel.taboolib.module.locale.TLocale;
+import io.izzel.taboolib.util.Strings;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 
@@ -15,6 +16,11 @@ import java.util.stream.IntStream;
 public abstract class BaseSubCommand {
 
     private String label;
+    private SubCommand annotation;
+
+    public void setAnnotation(SubCommand annotation) {
+        this.annotation = annotation;
+    }
 
     public void setLabel(String label) {
         this.label = label;
@@ -25,35 +31,35 @@ public abstract class BaseSubCommand {
     }
 
     public String getDescription() {
-        return null;
+        return annotation.description();
     }
 
     public String[] getAliases() {
-        return new String[0];
+        return annotation.aliases();
     }
 
     public Argument[] getArguments() {
-        return new Argument[0];
+        return Arrays.stream(annotation.aliases()).map(a -> a.endsWith("?") ? new Argument(a.substring(0, a.length() - 1), false) : new Argument(a)).toArray(Argument[]::new);
     }
 
     public CommandType getType() {
-        return CommandType.ALL;
+        return annotation.type();
     }
 
     public boolean ignoredLabel() {
-        return true;
+        return annotation.ignoredLabel();
     }
 
     public boolean requiredPlayer() {
-        return false;
+        return annotation.requiredPlayer();
     }
 
     public String getPermission() {
-        return null;
+        return annotation.permission();
     }
 
     public boolean hideInHelp() {
-        return false;
+        return annotation.hideInHelp();
     }
 
     public boolean isParameterConform(String[] args) {
@@ -61,7 +67,7 @@ public abstract class BaseSubCommand {
     }
 
     public String getCommandString(String label) {
-        return TLocale.asString(getDescription() == null ? "COMMANDS.INTERNAL.COMMAND-HELP-EMPTY" : "COMMANDS.INTERNAL.COMMAND-HELP", label, getLabel(), Arrays.stream(getArguments()).map(parameter -> parameter.toString() + " ").collect(Collectors.joining()), getDescription());
+        return TLocale.asString(Strings.isEmpty(getDescription()) ? "COMMANDS.INTERNAL.COMMAND-HELP-EMPTY" : "COMMANDS.INTERNAL.COMMAND-HELP", label, getLabel(), Arrays.stream(getArguments()).map(parameter -> parameter.toString() + " ").collect(Collectors.joining()), getDescription());
     }
 
     abstract public void onCommand(CommandSender sender, Command command, String label, String[] args);
diff --git a/src/main/scala/io/izzel/taboolib/module/command/base/SubCommand.java b/src/main/scala/io/izzel/taboolib/module/command/base/SubCommand.java
index cace75a..279f3fe 100644
--- a/src/main/scala/io/izzel/taboolib/module/command/base/SubCommand.java
+++ b/src/main/scala/io/izzel/taboolib/module/command/base/SubCommand.java
@@ -14,4 +14,20 @@ import java.lang.annotation.Target;
 public @interface SubCommand {
 
     double priority() default 0;
+
+    String permission() default "";
+
+    String description() default "";
+
+    String[] aliases() default {};
+
+    String[] arguments() default {};
+
+    boolean ignoredLabel() default true;
+
+    boolean requiredPlayer() default false;
+
+    boolean hideInHelp() default false;
+
+    CommandType type() default CommandType.ALL;
 }