diff --git a/adapters/discord/src/bot.ts b/adapters/discord/src/bot.ts
index d92e91ac..7c4a63f3 100644
--- a/adapters/discord/src/bot.ts
+++ b/adapters/discord/src/bot.ts
@@ -204,39 +204,37 @@ export class DiscordBot extends Bot<DiscordBot.Config> {
     const remote = Object.fromEntries((await this.internal.getGlobalApplicationCommands(this.selfId, { with_localizations: true }))
       .filter(cmd => cmd.type === Discord.ApplicationCommand.Type.CHAT_INPUT)
       .map(cmd => [cmd.name, cmd] as const))
-
+    const updates: any[] = []
     for (const key in { ...local, ...remote }) {
       if (!local[key]) {
         logger.debug('delete command %s', key)
         await this.internal.deleteGlobalApplicationCommand(this.selfId, remote[key].id)
         continue
       }
-
       const data = Discord.encodeCommand(local[key])
       logger.debug(data, remote[key])
       if (!remote[key]) {
         logger.debug('create command: %s', local[key].name)
-        await this.internal.createGlobalApplicationCommand(this.selfId, data)
+        updates.push(data)
       } else if (!shapeEqual(data, remote[key])) {
         logger.debug('edit command: %s', local[key].name)
-        await this.internal.editGlobalApplicationCommand(this.selfId, remote[key].id, data)
+        updates.push(data)
       }
     }
+    if (updates.length) {
+      await this.internal.bulkOverwriteGlobalApplicationCommands(this.selfId, updates)
+    }
   }
 }
 
-function shapeEqual(a: any, b: any, strict = false) {
+function shapeEqual(a: any, b: any) {
   if (a === b) return true
-  if (strict && isNullable(a) && isNullable(b)) return true
-  if (!strict && !a && !b) return true
-  // ^ a.required = false, b.required = undefined
+  if (isNullable(a) && isNullable(b)) return true
 
   if (typeof a !== typeof b) return false
   if (typeof a !== 'object') return false
-  if ((typeof a === 'object' && Object.values(a).every(v => !v) && !b)
-    || (typeof b === 'object' && Object.values(b).every(v => !v) && !a)) return true
-  // ^ one is object with undefined values, other is undefined (*_localizations)
-  // a = { foo: undefined }, b = undefined
+  if (Object.values(a).every(isNullable) && isNullable(b)) return true
+  // ^ a = { foo: undefined }, b = null
   if (!a || !b) return false
 
   // check array
@@ -248,7 +246,7 @@ function shapeEqual(a: any, b: any, strict = false) {
   }
 
   // check object
-  return Object.keys(a).every(key => shapeEqual(a[key], b[key], strict))
+  return Object.keys(a).every(key => shapeEqual(a[key], b[key]))
 }
 
 export namespace DiscordBot {
diff --git a/adapters/discord/src/types/command.ts b/adapters/discord/src/types/command.ts
index 52fedc56..03becddd 100644
--- a/adapters/discord/src/types/command.ts
+++ b/adapters/discord/src/types/command.ts
@@ -225,7 +225,7 @@ declare module './internal' {
      * Takes a list of application commands, overwriting the existing global command list for this application. Updates will be available in all guilds after 1 hour. Returns 200 and a list of application command objects. Commands that do not already exist will count toward daily application command create limits.
      * @see https://discord.com/developers/docs/interactions/application-commands#bulk-overwrite-global-application-commands
      */
-    bulkOverwriteGlobalApplicationCommands(application_id: snowflake): Promise<ApplicationCommand[]>
+    bulkOverwriteGlobalApplicationCommands(application_id: snowflake, data: ApplicationCommand.Params.Create[]): Promise<ApplicationCommand[]>
     /**
      * Fetch a global command for your application. Returns an application command object.
      * @see https://discord.com/developers/docs/interactions/application-commands#get-global-application-command
diff --git a/adapters/discord/src/utils.ts b/adapters/discord/src/utils.ts
index 34951d58..0526fb06 100644
--- a/adapters/discord/src/utils.ts
+++ b/adapters/discord/src/utils.ts
@@ -165,11 +165,12 @@ export async function adaptSession(bot: DiscordBot, input: Discord.Gateway.Paylo
   if (input.t === 'MESSAGE_CREATE') {
     setupMessageGuildId(session, input.d.guild_id)
     if (input.d.webhook_id && !session.isDirect) {
-      const webhook = await bot.ensureWebhook(input.d.channel_id)
-      if (webhook.id === input.d.webhook_id) {
+      try {
+        // 403 Missing Permissions
+        const webhook = await bot.ensureWebhook(input.d.channel_id)
         // koishi's webhook
-        return
-      }
+        if (webhook.id === input.d.webhook_id) return
+      } catch (e) {}
     }
     session.type = 'message'
     await decodeMessage(bot, input.d, session)
@@ -291,6 +292,7 @@ export function encodeCommandOptions(cmd: Universal.Command): Discord.Applicatio
       description_localizations: pick(cmd.description, Discord.Locale),
     })))
   } else {
+    // `getGlobalApplicationCommands()` does not return `required` property.
     for (const arg of cmd.arguments) {
       result.push({
         name: arg.name.toLowerCase().replace(/[^a-z0-9]/g, ''),
@@ -298,7 +300,6 @@ export function encodeCommandOptions(cmd: Universal.Command): Discord.Applicatio
         description_localizations: pick(arg.description, Discord.Locale),
         type: types[arg.type] ?? types.text,
         // required: arg.required ?? false,
-        required: false,
       })
     }
     for (const option of cmd.options) {
@@ -308,7 +309,6 @@ export function encodeCommandOptions(cmd: Universal.Command): Discord.Applicatio
         description_localizations: pick(option.description, Discord.Locale),
         type: types[option.type] ?? types.text,
         // required: option.required ?? false,
-        required: false,
         min_value: option.type === 'posint' ? 1 : undefined,
       })
     }