diff --git a/1A2B/main.py b/1A2B/main.py
index 468f1ba..bf0d90d 100644
--- a/1A2B/main.py
+++ b/1A2B/main.py
@@ -52,7 +52,7 @@ class Game:
 @listener(command="1A2B",
           groups_only=True,
           description="Play a game of 1A2B",
-          parameters="<start/stop/answer>")
+          parameters="[start/stop/answer]")
 async def play_game_1a2b(message: Message):
     if not message.arguments:
         return await message.edit("Please specify a command.")
diff --git a/aff/main.py b/aff/main.py
index 5664e72..2d6082b 100644
--- a/aff/main.py
+++ b/aff/main.py
@@ -25,7 +25,7 @@ def del_aff() -> None:
 
 @listener(command="aff",
           description="在别人要打算买机场的时候光速发出自己的aff信息(请尽量配合短链接)",
-          parameters="<save|remove> (可选，回复一条消息，用于保存|删除aff信息)")
+          parameters="[save|remove] (可选，回复一条消息，用于保存|删除aff信息)")
 async def aff(message: Message):
     if not message.parameter:
         msg, web_page = get_aff()
diff --git a/alicloud/main.py b/alicloud/main.py
index 31c980c..78dd65d 100644
--- a/alicloud/main.py
+++ b/alicloud/main.py
@@ -96,7 +96,7 @@ async def alicloud_startup() -> None:
 
 @listener(command="alicloud",
           description="获取阿里云盘掉落福利信息",
-          parameters="<订阅/退订>")
+          parameters="[订阅/退订]")
 async def set_alicloud_notice(message: Message):
     if not message.arguments:
         try:
diff --git a/atadmins/main.py b/atadmins/main.py
index 52339d6..82039c3 100644
--- a/atadmins/main.py
+++ b/atadmins/main.py
@@ -7,7 +7,7 @@ from pagermaid.enums import Client, Message
 @listener(command="atadmins",
           description="一键 AT 本群管理员（仅在群组中有效）",
           groups_only=True,
-          parameters="<要说的话>")
+          parameters="[要说的话]")
 async def at_admins(client: Client, message: Message):
     admins = []
     async for m in client.get_chat_members(message.chat.id, filter=ChatMembersFilter.ADMINISTRATORS):
diff --git a/base64/main.py b/base64/main.py
index c528284..b723877 100644
--- a/base64/main.py
+++ b/base64/main.py
@@ -6,7 +6,7 @@ from base64 import b64decode, b64encode
 
 @listener(command="b64e",
           description="将文本转为Base64",
-          parameters="<text>")
+          parameters="[text]")
 async def b64e(_: Client, message: Message):
     msg = message.arguments
     if not msg:
@@ -18,7 +18,7 @@ async def b64e(_: Client, message: Message):
 
 @listener(command="b64d",
           description="将Base64转为文本",
-          parameters="<text>")
+          parameters="[text]")
 async def b64d(_: Client, message: Message):
     msg = message.arguments
     if not msg:
diff --git a/bc/main.py b/bc/main.py
index 8b09048..625ff19 100644
--- a/bc/main.py
+++ b/bc/main.py
@@ -46,7 +46,7 @@ def init() -> None:
 
 @listener(command="bc",
           description="coins",
-          parameters="<num> <coin1> <coin2>")
+          parameters="[num] [coin1] [coin2]")
 async def coin(_: Client, message: Message) -> None:
     """ coin change """
     init()
diff --git a/bin/main.py b/bin/main.py
index 711e6db..33885c7 100644
--- a/bin/main.py
+++ b/bin/main.py
@@ -11,7 +11,7 @@ import requests
 
 @listener(command="bin", 
           description="查询信用卡信息", 
-          parameters="<bin（4到8位数字）>")
+          parameters="[bin（4到8位数字）]")
 async def card(_: Client, message: Message):
     await message.edit('正在查询中...')
     try:
diff --git a/calculator/main.py b/calculator/main.py
index 02c8787..a624897 100644
--- a/calculator/main.py
+++ b/calculator/main.py
@@ -5,7 +5,7 @@ from pagermaid.utils import Message, execute
 
 @listener(command="cal",
           description="计算\n示例：\n`,cal 1+1`加法\n`,cal 2-1`减法\n`,cal 1*2`乘法\n`,cal 4/2`除法\n`,cal 4^2`幂运算\n`,cal sqrt(4)`开方",
-          parameters="<基本运算>")
+          parameters="[基本运算]")
 async def cal(_: Client, message: Message):
     command = message.arguments
     if not command:
@@ -23,7 +23,7 @@ async def cal(_: Client, message: Message):
 
 @listener(command="con",
           description="换算\n示例：\n`,con 2 99`将99转换为2进制",
-          parameters="<进制(数字)> <数值>")
+          parameters="[进制(数字)] [数值]")
 async def con(_: Client, message: Message):
     command = message.arguments.split()
     if not command:
diff --git a/clear_private_chat/main.py b/clear_private_chat/main.py
index 3e559e3..032ec30 100644
--- a/clear_private_chat/main.py
+++ b/clear_private_chat/main.py
@@ -27,7 +27,7 @@ async def delete_private_chat(cid: int):
 @listener(command="clear_private_chat",
           need_admin=True,
           description="通过指定关键词清除私聊",
-          parameters="<关键词>")
+          parameters="[关键词]")
 async def clear_private_chat(message: Message):
     """ 通过指定关键词清除私聊记录 """
     if not message.arguments:
diff --git a/covid/main.py b/covid/main.py
index c5bb0f2..6270e42 100644
--- a/covid/main.py
+++ b/covid/main.py
@@ -101,7 +101,7 @@ NewsBot = NewsData()
 
 @listener(command="covid",
           description="获取新冠疫情信息。",
-          parameters="<地区>")
+          parameters="[地区]")
 async def covid_info(message: Message):
     global POLICY_ID, NewsBot
     if not POLICY_ID:
diff --git a/da/main.py b/da/main.py
index fd932c0..cd4e816 100644
--- a/da/main.py
+++ b/da/main.py
@@ -11,7 +11,7 @@ from pagermaid.utils import alias_command
           groups_only=True,
           need_admin=True,
           description="删除群内所有消息。（非群组管理员只删除自己的消息）",
-          parameters="<true>")
+          parameters="[true]")
 async def da(bot: Client, message: Message):
     if message.arguments != "true":
         return await message.edit(f"[da] 呜呜呜，请执行 `,{alias_command('da')} true` 来删除所有消息。")
diff --git a/dictionary/main.py b/dictionary/main.py
index 4f39e35..416e3c6 100644
--- a/dictionary/main.py
+++ b/dictionary/main.py
@@ -12,7 +12,7 @@ dictionary_data = PyDictionary()
 
 
 @listener(command="dictionary",
-          parameters="<单词>",
+          parameters="[单词]",
           description="查询英语单词的意思")
 async def get_word_mean(message: Message):
     """ Look up a word in the dictionary. """
diff --git a/eat/main.py b/eat/main.py
index 5c199fa..6fb62e2 100644
--- a/eat/main.py
+++ b/eat/main.py
@@ -198,7 +198,7 @@ async def downloadFileByIds(ids, context):
                       "当第二个参数是/开头时，在/后面加url则从url下载配置文件保存到本地，如果就一个/，则直接更新配置文件，删除则是/delete；或者/后面加模版id可以手动更新指定模版配置\n\n"
                       "当第二个参数是-开头时，在-后面加上模版id，即可设置默认模版-eat直接使用该模版，删除默认模版是-eat -\n\n"
                       "当第二个参数是!或者！开头时，列出当前可用模版",
-          parameters="<username/uid> [随意内容]")
+          parameters="[username/uid] [随意内容]")
 async def eat(client_: Client, context: Message):
     if len(context.parameter) > 2:
         await context.edit("出错了呜呜呜 ~ 无效的参数。")
diff --git a/fadian/main.py b/fadian/main.py
index cbd5ae2..b2a9b7e 100644
--- a/fadian/main.py
+++ b/fadian/main.py
@@ -86,7 +86,7 @@ async def fa_dian_refresher_data():
 
 @listener(command="fadian",
           description="快速对着指定人物发电",
-          parameters="<query>")
+          parameters="[query]")
 async def fa_dian_process(message: Message):
     if fa_dian.data.get("date") == 0:
         await fa_dian.fetch()
diff --git a/gfw/main.py b/gfw/main.py
index 5b00179..12b141c 100644
--- a/gfw/main.py
+++ b/gfw/main.py
@@ -28,7 +28,7 @@ async def post(host):
 
 
 @listener(command="gfw",
-          parameters="<text>",
+          parameters="[text]",
           description="查询是否被墙")
 async def gfw(message: Message):
     text = None
diff --git a/google/main.py b/google/main.py
index 3e61e76..9acb519 100644
--- a/google/main.py
+++ b/google/main.py
@@ -10,7 +10,7 @@ from magic_google import MagicGoogle
 
 @listener(command="google",
           description=lang('google_des'),
-          parameters="<query>")
+          parameters="[query]")
 async def google(message: Message):
     """ Searches Google for a string. """
     query = message.arguments
diff --git a/httpcat/main.py b/httpcat/main.py
index 9556821..06fd5ec 100644
--- a/httpcat/main.py
+++ b/httpcat/main.py
@@ -4,7 +4,7 @@ from pagermaid.enums import Client, Message, AsyncClient
 from pagermaid.listener import listener
 
 
-@listener(command="httpcat", description="获取 HTTP 状态码的图片。", parameters="<http 状态码>")
+@listener(command="httpcat", description="获取 HTTP 状态码的图片。", parameters="[http 状态码]")
 async def httpcat(client: Client, message: Message, request: AsyncClient):
     try:
         code = int(message.arguments)
diff --git a/icp/main.py b/icp/main.py
index d635708..a088346 100644
--- a/icp/main.py
+++ b/icp/main.py
@@ -56,7 +56,7 @@ async def icp_search(domain):
 
 
 @listener(command="icp",
-          parameters="<域名>",
+          parameters="[域名]",
           description="查询域名是否已备案")
 async def icp_bei_an(message: Message):
     url = None
diff --git a/ip/main.py b/ip/main.py
index a9ae1b2..6a656c5 100644
--- a/ip/main.py
+++ b/ip/main.py
@@ -36,7 +36,7 @@ async def get_ip_info(url: str) -> str:
 
 @listener(command="ip",
           description="IPINFO （或者回复一句话）",
-          parameters="<ip/域名>")
+          parameters="[ip/域名]")
 async def ipinfo(message: Message):
     reply = message.reply_to_message
     message: Message = await message.edit('正在查询中...')
diff --git a/jikipedia/main.py b/jikipedia/main.py
index f459e30..a881acd 100644
--- a/jikipedia/main.py
+++ b/jikipedia/main.py
@@ -90,7 +90,7 @@ class JIKIPedia:
 
 
 @listener(command="jikipedia",
-          parameters="<关键词>",
+          parameters="[关键词]",
           description="梗查询")
 async def jikipedia(message: Message):
     if not message.arguments:
diff --git a/lottery/main.py b/lottery/main.py
index 32de555..d3cbcdf 100644
--- a/lottery/main.py
+++ b/lottery/main.py
@@ -102,7 +102,7 @@ async def create_lottery(chat_id: int, num: int, win: int, title: str, keyword:
 @listener(command="lottery",
           groups_only=True,
           need_admin=True,
-          parameters="<奖品数/人数> <关键词> <标题> / 强制开奖",
+          parameters="[奖品数/人数] [关键词] [标题] / 强制开奖",
           description=f"举行抽奖活动\n\n例如：,{alias_command('lottery')} 1/10 测试 测试")
 async def lottery(message: Message):
     if not message.arguments:
diff --git a/netease/main.py b/netease/main.py
index 2fb2a2c..1715201 100644
--- a/netease/main.py
+++ b/netease/main.py
@@ -74,7 +74,7 @@ async def netease_id(music_id: str, message: Message):
 
 @listener(command="netease",
           description="Netease Music",
-          parameters="<query>",)
+          parameters="[query]",)
 async def netease_music(message: Message):
     if not message.arguments:
         return await message.edit(Netease_Help_Msg)
diff --git a/no_mentions/main.py b/no_mentions/main.py
index 45dd6c0..ac173cf 100644
--- a/no_mentions/main.py
+++ b/no_mentions/main.py
@@ -12,7 +12,7 @@ no_mentions_sub = Sub("no_mentions")
 
 @listener(command="no_mentions",
           description="自动消除某个对话的 @ 提醒",
-          parameters="<true|false|status>")
+          parameters="[true|false|status]")
 async def no_mentions(_: Client, message: Message):
     if len(message.parameter) != 1:
         await message.edit(f"[no_mentions] {lang('error_prefix')}{lang('arg_error')}")
diff --git a/no_reactions/main.py b/no_reactions/main.py
index 0f1eb73..c240a13 100644
--- a/no_reactions/main.py
+++ b/no_reactions/main.py
@@ -19,7 +19,7 @@ no_reactions_sub = Sub("no_reactions")
 
 @listener(command="no_reactions",
           description="自动已读某个对话的消息表态",
-          parameters="<true|false|status>")
+          parameters="[true|false|status]")
 async def no_reactions(_: Client, message: Message):
     if len(message.parameter) != 1:
         await message.edit(f"[no_reactions] {lang('error_prefix')}{lang('arg_error')}")
diff --git a/qr/main.py b/qr/main.py
index 574a01b..8f82d7f 100644
--- a/qr/main.py
+++ b/qr/main.py
@@ -16,7 +16,7 @@ from pyqrcode import create
 
 @listener(is_plugin=False, outgoing=True, command="genqr",
           description=lang('genqr_des'),
-          parameters="<string>")
+          parameters="[string]")
 async def gen_qr(client: Client, message: Message):
     """ Generate QR codes. """
     text = message.obtain_message()
diff --git a/rate/main.py b/rate/main.py
index 34df413..1674888 100644
--- a/rate/main.py
+++ b/rate/main.py
@@ -15,18 +15,18 @@ class Rate:
     def __init__(self):
         if Config.LANGUAGE == "en":
             self.lang_rate = {
-                "des": "Currency exchange rate plugin", "arg": "<from_> <to_> <NUM>",
+                "des": "Currency exchange rate plugin", "arg": "[from_] [to_] [NUM]",
                 "help": "Currency exchange rate plugin\n\n"
-                        f"Usage: `,{alias_command('rate')} <from_> <to_> <NUM> where <NUM> is "
+                        f"Usage: `,{alias_command('rate')} [from_] [to_] [NUM] where [NUM] is "
                         "optional`\n\nAvailable currencies: \n",
                 "nc": "is not available.\n\nAvailable currencies: \n",
                 "notice": "Data are updated daily.",
                 "warning": "Data are updated daily."}
         else:
             self.lang_rate = {
-                "des": "货币汇率插件", "arg": "<from_> <to_> <NUM>",
+                "des": "货币汇率插件", "arg": "[from_] [to_] [NUM]",
                 "help": "这是货币汇率插件\n\n"
-                        f"使用方法: `,{alias_command('rate')} <from_> <to_> <NUM>，其中 <NUM> 是可省略的`\n\n"
+                        f"使用方法: `,{alias_command('rate')} [from_] [to_] [NUM]，其中 [NUM] 是可省略的`\n\n"
                         "支持货币: \n",
                 "nc": "不是支持的货币. \n\n支持货币: \n",
                 "notice": "数据每日八点更新",
diff --git a/sb/main.py b/sb/main.py
index 79e6f63..955c08c 100644
--- a/sb/main.py
+++ b/sb/main.py
@@ -68,7 +68,7 @@ async def get_uid(chat: Chat, message: Message):
           description=lang('sb_des'),
           need_admin=True,
           groups_only=True,
-          parameters="<reply|id|username> <do_not_del_all>")
+          parameters="[reply|id|username> <do_not_del_all]")
 async def super_ban(message: Message):
     chat = message.chat
     try:
diff --git a/set_status/main.py b/set_status/main.py
index 73ff8fa..cc2ff87 100644
--- a/set_status/main.py
+++ b/set_status/main.py
@@ -27,7 +27,7 @@ async def set_custom_emoji(bot: Client, custom_emoji_id: int):
 
 
 @listener(command="set_status",
-          parameters="<大会员自定义 emoji>",
+          parameters="[大会员自定义 emoji]",
           need_admin=True,
           description="快速设置大会员自定义 emoji 状态")
 async def set_emoji_status(bot: Client, message: Message):
diff --git a/silly_girl/main.py b/silly_girl/main.py
index 8fe04b2..0d084f9 100644
--- a/silly_girl/main.py
+++ b/silly_girl/main.py
@@ -134,7 +134,7 @@ async def connect_sillyGirl():
 
     
 
-@listener(is_plugin=True,outgoing=True, ignore_edited=True, command="sillyGirl",description="连接到傻妞服务器", parameters="<auth>")
+@listener(is_plugin=True,outgoing=True, ignore_edited=True, command="sillyGirl",description="连接到傻妞服务器", parameters="[auth]")
 async def Connect(message: Message):
     try:                   
         await edit_delete(message,"连接中，建议重启...")
diff --git a/sticker/main.py b/sticker/main.py
index d10b87e..805d143 100644
--- a/sticker/main.py
+++ b/sticker/main.py
@@ -244,7 +244,7 @@ class Sticker:
 
 @listener(
     command="s",
-    parameters="<贴纸包名/cancel>",
+    parameters="[贴纸包名/cancel]",
     description="保存贴纸到自己的贴纸包",
     need_admin=True,
 )
diff --git a/teletype/main.py b/teletype/main.py
index b390ec7..1421ad6 100644
--- a/teletype/main.py
+++ b/teletype/main.py
@@ -8,7 +8,7 @@ from pagermaid.utils import lang, Message
 
 @listener(is_plugin=False, command="teletype",
           description=lang('teletype_des'),
-          parameters="<message>")
+          parameters="[message]")
 async def teletype(message: Message):
     if not message.arguments:
         return await message.edit("出错了呜呜呜 ~ 空白的参数。")
diff --git a/unban/main.py b/unban/main.py
index f1b61fa..f2297b8 100644
--- a/unban/main.py
+++ b/unban/main.py
@@ -43,7 +43,7 @@ async def get_uid(chat: Chat, message: Message):
           description="解除封禁一位用户",
           need_admin=True,
           groups_only=True,
-          parameters="<reply|id|username>")
+          parameters="[reply|id|username]")
 async def unban(client: Client, message: Message):
     chat = message.chat
     try:
diff --git a/unixtime/main.py b/unixtime/main.py
index b2deb54..50fea6f 100644
--- a/unixtime/main.py
+++ b/unixtime/main.py
@@ -37,7 +37,7 @@ def format_time(t):
 
 @listener(command="unixtime",
           description="Unix时间戳转换\n参数缺省将当前服务器时间转换为Unix时间戳\n时间格式: `YYYY-MM-DD HH:MM:SS`",
-          parameters="<缺省 / 时间 / Unix时间戳>")
+          parameters="[缺省 / 时间 / Unix时间戳]")
 async def unix_time(message: Message):
     try:
         return await message.edit(format_time(message.arguments))
diff --git a/urbandictionary/main.py b/urbandictionary/main.py
index 8dba1b3..b12d840 100644
--- a/urbandictionary/main.py
+++ b/urbandictionary/main.py
@@ -4,7 +4,7 @@ from pagermaid.utils import alias_command
 
 
 @listener(command="urbandictionary",
-          parameters="<单词>",
+          parameters="[单词]",
           description="解释英语俚语词汇")
 async def get_urban_mean(message: Message, httpx: AsyncClient):
     """ To fetch meaning of the given word from urban dictionary. """
diff --git a/vctools/main.py b/vctools/main.py
index e9c4c25..2dbaac8 100644
--- a/vctools/main.py
+++ b/vctools/main.py
@@ -9,7 +9,7 @@ from pagermaid.enums import Client, Message
 @listener(command="vctools",
           admins_only=True,
           groups_only=True,
-          parameters="<开启/关闭>",
+          parameters="[开启/关闭]",
           description="开启/关闭群组直播间")
 async def vctools(bot: Client, message: Message):
     if not message.arguments:
diff --git a/vip/main.py b/vip/main.py
index ca7be4f..4de96ed 100644
--- a/vip/main.py
+++ b/vip/main.py
@@ -6,7 +6,7 @@ from pagermaid.enums import Client, Message
 
 @listener(command="duckduckgo",
           description="Duckduckgo 搜索",
-          parameters="<query>")
+          parameters="[query]")
 async def duckduckgo(client: Client, message: Message):
     text = message.arguments
     if not text:
@@ -19,7 +19,7 @@ async def duckduckgo(client: Client, message: Message):
 
 @listener(command="caiyun",
           description="彩云翻译",
-          parameters="<query>")
+          parameters="[query]")
 async def caiyun_translate(client: Client, message: Message):
     text = message.arguments
     if not text:
@@ -32,7 +32,7 @@ async def caiyun_translate(client: Client, message: Message):
 
 @listener(command="weather",
           description="使用彩云天气 api 查询国内实时天气。",
-          parameters="<位置>")
+          parameters="[位置]")
 async def weather(client: Client, message: Message):
     text = message.arguments
     if not text:
@@ -45,7 +45,7 @@ async def weather(client: Client, message: Message):
 
 @listener(command="weather_pic",
           description="使用彩云天气 api 查询国内实时天气，但是显示图片。",
-          parameters="<位置>")
+          parameters="[位置]")
 async def weather_pic(client: Client, message: Message):
     text = message.arguments
     if not text:
@@ -62,7 +62,7 @@ async def weather_pic(client: Client, message: Message):
 
 @listener(command="weather_he",
           description="使用和风天气 api 查询国内实时天气，但是显示图片。",
-          parameters="<位置>")
+          parameters="[位置]")
 async def weather_he(client: Client, message: Message):
     text = message.arguments
     if not text:
@@ -93,34 +93,34 @@ async def az_tts(client: Client, message: Message, mode: str):
 
 @listener(command="tts_nan",
           description="通过 Azure 文本到语音 基于字符串生成 简体男声 语音消息。",
-          parameters="<字符串>")
+          parameters="[字符串]")
 async def az_tts_nan(client: Client, message: Message):
     await az_tts(client, message, "")
 
 
 @listener(command="tts_nv",
           description="通过 Azure 文本到语音 基于字符串生成 简体女声 语音消息。",
-          parameters="<字符串>")
+          parameters="[字符串]")
 async def az_tts_nv(client: Client, message: Message):
     await az_tts(client, message, "nv")
 
 
 @listener(command="tts_tw",
           description="通过 Azure 文本到语音 基于字符串生成 繁体男声 语音消息。",
-          parameters="<字符串>")
+          parameters="[字符串]")
 async def az_tts_tw(client: Client, message: Message):
     await az_tts(client, message, "tw")
 
 
 @listener(command="tts_ne",
           description="通过 Azure 文本到语音 基于字符串生成 简体新闻男声 语音消息。",
-          parameters="<字符串>")
+          parameters="[字符串]")
 async def az_tts_ne(client: Client, message: Message):
     await az_tts(client, message, "ne")
 
 
 @listener(command="tts_en",
           description="通过 Azure 文本到语音 基于字符串生成 英文男声 语音消息。",
-          parameters="<字符串>")
+          parameters="[字符串]")
 async def az_tts_en(client: Client, message: Message):
     await az_tts(client, message, "en")
diff --git a/weather/main.py b/weather/main.py
index 424cd16..586cd31 100644
--- a/weather/main.py
+++ b/weather/main.py
@@ -38,7 +38,7 @@ def calcWindDirection(windDirection):
 
 @listener(command="weather",
           description="查询天气",
-          parameters="<城市>")
+          parameters="[城市]")
 async def weather(_: Client, message: Message):
     if not message.arguments:
         return await message.edit("出错了呜呜呜 ~ 无效的参数。")
diff --git a/weather_lite/main.py b/weather_lite/main.py
index 4e05f67..df01832 100644
--- a/weather_lite/main.py
+++ b/weather_lite/main.py
@@ -5,7 +5,7 @@ from pagermaid.single_utils import safe_remove
 
 @listener(command="weather_lite",
           description="查询天气",
-          parameters="<城市>")
+          parameters="[城市]")
 async def weather_lite(request: AsyncClient, message: Message):
     if not message.arguments:
         return await message.edit("请输入城市名称")
diff --git a/websocket/main.py b/websocket/main.py
index 323d697..27076f8 100644
--- a/websocket/main.py
+++ b/websocket/main.py
@@ -131,7 +131,7 @@ async def websocket_push(message: Message):
         await ws.push(message.__str__())
 
 
-@listener(command="websocket", description="Websocket Connect", parameters="<uri>")
+@listener(command="websocket", description="Websocket Connect", parameters="[uri]")
 async def websocket_to_connect(message: Message):
     if message.arguments:
         uri = message.arguments
diff --git a/xtao-some/main.py b/xtao-some/main.py
index 28e650c..5f38794 100644
--- a/xtao-some/main.py
+++ b/xtao-some/main.py
@@ -35,7 +35,7 @@ async def guess(_: Client, message: Message):
 
 @listener(is_plugin=True, command="wiki", 
           description="查询维基百科词条",
-          parameters="<词组>")
+          parameters="[词组]")
 async def wiki(_: Client, message: Message):
     text = message.arguments
     if not text:
diff --git a/ytdl/main.py b/ytdl/main.py
index bc0f5ca..a15b1b6 100644
--- a/ytdl/main.py
+++ b/ytdl/main.py
@@ -104,7 +104,7 @@ async def start_download(message: Message, url: str):
 
 @listener(command="ytdl",
           description="Upload Youtube、Bilibili video to telegram",
-          parameters="<url>")
+          parameters="[url]")
 async def ytdl(message: Message):
     global ytdl_is_downloading
     if not message.arguments: