Runtime validation example

guild-only.js

// This is written in JS but the handler will still have TS support as expected

module.exports = (command, usage, prefix) => {
  const { guildOnly } = command.commandObject
  const { guild, message, interaction } = usage

  if (guildOnly === true && !guild) {
    const text = 'This command can only be ran within a guild/server.'

    if (message) message.reply(text)
    else if (interaction) interaction.reply(text)

    return false
  }

  return true
}