diff --git a/locales/en.json b/locales/en.json
index 6241eb0..f6f4213 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -5,7 +5,8 @@
       "invalidInt": "Argument must be an integer. Received: {{value}}",
       "invalidNumber": "Argument must be a number. Received: {{value}}",
       "invalidBoolean": "Argument must be a boolean value. Received: {{value}}",
-      "invalidUser": "Could not resolve a user from {{value}}"
+      "invalidUser": "Could not resolve a user from {{value}}",
+      "tooMany": "Too many arguments detected ({{count}}): {{extras}}. Usage: {{usage}}"
     },
     "permissions": {
       "user": "You are missing permissions: {{permissions}}"
diff --git a/locales/es.json b/locales/es.json
index d4412b7..c9f7a5f 100644
--- a/locales/es.json
+++ b/locales/es.json
@@ -5,7 +5,8 @@
       "invalidInt": "El argumento debe ser un entero. Recibido: {{value}}",
       "invalidNumber": "El argumento debe ser un numero. Recibido: {{value}}",
       "invalidBoolean": "El argumento debe ser un valor booleano. Recibido: {{value}}",
-      "invalidUser": "No se pudo resolver un usuario desde {{value}}"
+      "invalidUser": "No se pudo resolver un usuario desde {{value}}",
+      "tooMany": "Se detectaron demasiados argumentos ({{count}}): {{extras}}. Uso: {{usage}}"
     },
     "permissions": {
       "user": "Te faltan permisos: {{permissions}}"
diff --git a/locales/fr.json b/locales/fr.json
index a49c4d3..da49567 100644
--- a/locales/fr.json
+++ b/locales/fr.json
@@ -5,7 +5,8 @@
       "invalidInt": "L argument doit etre un entier. Recu: {{value}}",
       "invalidNumber": "L argument doit etre un nombre. Recu: {{value}}",
       "invalidBoolean": "L argument doit etre un booleen. Recu: {{value}}",
-      "invalidUser": "Impossible de trouver un utilisateur depuis {{value}}"
+      "invalidUser": "Impossible de trouver un utilisateur depuis {{value}}",
+      "tooMany": "Trop d arguments ({{count}}) detectes: {{extras}}. Usage: {{usage}}"
     },
     "permissions": {
       "user": "Tu n as pas les permissions: {{permissions}}"
diff --git a/src/commands/utility/advanced.ts b/src/commands/utility/advanced.ts
index fe25166..f82cc3b 100644
--- a/src/commands/utility/advanced.ts
+++ b/src/commands/utility/advanced.ts
@@ -43,6 +43,12 @@ export const advancedCommand = defineCommand({
       required: true,
       descriptionKey: "args.count",
     },
+    {
+      name: "user",
+      type: "user",
+      required: true,
+      descriptionKey: "args.user",
+    },
     {
       name: "ratio",
       type: "number",
@@ -55,12 +61,6 @@ export const advancedCommand = defineCommand({
       required: false,
       descriptionKey: "args.enabled",
     },
-    {
-      name: "user",
-      type: "user",
-      required: true,
-      descriptionKey: "args.user",
-    },
     {
       name: "channel",
       type: "channel",
@@ -76,7 +76,7 @@ export const advancedCommand = defineCommand({
   ],
   examples: [
     {
-      args: '"hello world" 5 1.5 true @Arthur #general @Moderators',
+      args: '"hello world" 5 @Arthur 1.5 true #general @Moderators',
       descriptionKey: "examples.full",
     },
     {
diff --git a/src/framework/commands/argParser.ts b/src/framework/commands/argParser.ts
index 7b9cd2d..6699177 100644
--- a/src/framework/commands/argParser.ts
+++ b/src/framework/commands/argParser.ts
@@ -59,6 +59,16 @@ export const parsePrefixArgs = async (
     errors.push(parsed.error);
   }
 
+  if (tokens.length > 0) {
+    errors.push({
+      key: "errors.args.tooMany",
+      vars: {
+        count: tokens.length,
+        extras: tokens.join(" "),
+      },
+    });
+  }
+
   return { values, errors };
 };
 
diff --git a/src/framework/commands/defineCommand.ts b/src/framework/commands/defineCommand.ts
index d1c4bd8..b95fea2 100644
--- a/src/framework/commands/defineCommand.ts
+++ b/src/framework/commands/defineCommand.ts
@@ -1,18 +1,29 @@
 import type { BotCommand, BotCommandInput } from "../types/command.js";
 
-export const defineCommand = (input: BotCommandInput): BotCommand => {
-  // Discord requires all required slash options before any optional ones.
-  const normalizedArgs = [...(input.args ?? [])].sort((a, b) => {
-    if (a.required === b.required) {
-      return 0;
+const assertRequiredArgsBeforeOptional = (input: BotCommandInput): void => {
+  const args = input.args ?? [];
+  let firstOptionalArgName: string | null = null;
+
+  for (const arg of args) {
+    if (!arg.required) {
+      firstOptionalArgName ??= arg.name;
+      continue;
     }
 
-    return a.required ? -1 : 1;
-  });
+    if (firstOptionalArgName) {
+      throw new Error(
+        `Invalid argument order for command "${input.meta.name}": required argument "${arg.name}" cannot appear after optional argument "${firstOptionalArgName}". Declare all required arguments before optional ones.`,
+      );
+    }
+  }
+};
+
+export const defineCommand = (input: BotCommandInput): BotCommand => {
+  assertRequiredArgsBeforeOptional(input);
 
   return {
     meta: input.meta,
-    args: normalizedArgs,
+    args: [...(input.args ?? [])],
     permissions: input.permissions ?? [],
     examples: input.examples ?? [],
     execute: input.execute,