diff --git a/bot/cogs/authentication.py b/bot/cogs/authentication.py
index 1c511cd..bfe680d 100644
--- a/bot/cogs/authentication.py
+++ b/bot/cogs/authentication.py
@@ -650,7 +650,11 @@ def timeout_feedback_embed() -> discord.Embed:
 
     @commands.dm_only()
     @commands.cooldown(60, 0, commands.BucketType.user)
-    @commands.hybrid_command(name="aplicar", aliases=["role", "membro", "aplicar_role"])
+    @commands.hybrid_command(
+        name="aplicar",
+        aliases=["role", "membro", "aplicar_role"],
+        description="Inicia o processo de autenticação para receber o cargo de membro.",
+    )
     async def aplicar_role(self, ctx: Context):
         self.logger.info(f"[{ctx.author}] Autenticação iniciada.")
 
diff --git a/bot/cogs/chat.py b/bot/cogs/chat.py
index d5720b0..e2ab50f 100644
--- a/bot/cogs/chat.py
+++ b/bot/cogs/chat.py
@@ -316,7 +316,9 @@ async def github(self, ctx: Context):
 
     # @commands.bot_has_permissions(embed_links=True)
     @commands.hybrid_command(
-        name="atlantisbot", aliases=["atlbot", "atlbotcommands", "atlcommands"]
+        name="atlantisbot",
+        aliases=["atlbot", "atlbotcommands", "atlcommands"],
+        description="Exibe a lista de comandos disponíveis do AtlantisBot.",
     )
     async def atlantisbot(self, ctx: Context):
         runepixels_url = (
diff --git a/bot/cogs/clan.py b/bot/cogs/clan.py
index 4c89ae4..b0145b9 100644
--- a/bot/cogs/clan.py
+++ b/bot/cogs/clan.py
@@ -1,5 +1,6 @@
 import rs3clans
 import discord
+from discord import app_commands
 from discord.ext import commands
 
 from bot.bot_client import Bot
@@ -110,8 +111,18 @@ async def clan_user_info(self, ctx: Context, *, username: str):
 
     @commands.cooldown(1, 5, commands.BucketType.user)
     @commands.bot_has_permissions(embed_links=True)
-    @commands.hybrid_command(aliases=["ranksupdate", "upranks", "rank"])
-    async def ranks(self, ctx: Context, *, clan: str = "Atlantis"):
+    @commands.hybrid_command(
+        aliases=["ranksupdate", "upranks", "rank"],
+        description="Mostra os ranks pendentes de atualização no clã selecionado.",
+    )
+    @app_commands.describe(clan="Escolha o clã para verificar os ranks pendentes")
+    @app_commands.choices(
+        clan=[
+            app_commands.Choice(name="Atlantis", value="atlantis"),
+            app_commands.Choice(name="Atlantis Argus", value="argus"),
+        ]
+    )
+    async def ranks(self, ctx: Context, *, clan: str = "atlantis"):
         if getattr(ctx, "interaction", None) is None:
             await ctx.send("Dica: use o comando de barra `/ranks` para uma melhor experiência.")
 
diff --git a/tests/test_ranks_command.py b/tests/test_ranks_command.py
index 208b16f..530ad3f 100644
--- a/tests/test_ranks_command.py
+++ b/tests/test_ranks_command.py
@@ -27,3 +27,24 @@ def test_ranks_prefix_suggests_slash(monkeypatch):
     assert len(ctx.sent_messages) == 2
     assert "use o comando de barra `/ranks`" in ctx.sent_messages[0]["content"]
     assert ctx.sent_messages[1]["embed"] is not None
+
+
+def test_ranks_has_clan_choices():
+    clan_cog = make_clan()
+
+    command = clan_cog.ranks
+
+    app_command = command.app_command
+    clan_parameter = next(parameter for parameter in app_command.parameters if parameter.name == "clan")
+
+    assert [choice.name for choice in clan_parameter.choices] == ["Atlantis", "Atlantis Argus"]
+    assert [choice.value for choice in clan_parameter.choices] == ["atlantis", "argus"]
+
+
+def test_ranks_default_clan_is_atlantis():
+    clan_cog = make_clan()
+
+    command = clan_cog.ranks
+    clan_parameter = next(parameter for parameter in command.app_command.parameters if parameter.name == "clan")
+
+    assert clan_parameter.default == "atlantis"