pnpm add @wolfstar/http-framework @wolfstar/plugin-subcommands-advanced

import '@wolfstar/plugin-subcommands-advanced/register';
import { Client, RegisterCommand } from '@wolfstar/http-framework';
import { Command, Subcommand, RegisterAsSubcommand, RegisterAsSubcommandGroup } from '@wolfstar/plugin-subcommands-advanced';

const client = new Client({
	subcommandsAdvanced: {
		// optional: piece names become parent/sub or parent/group/sub
		nameCommandsAutogenerated: true
	}
});

commands/
└── utils/
    ├── parent.ts          // parent chat-input command
    ├── ping.ts            // subcommand
    └── poll/
        └── create.ts      // grouped subcommand

import { RegisterCommand } from '@wolfstar/http-framework';
import { Subcommand } from '@wolfstar/plugin-subcommands-advanced';

@RegisterCommand((builder) =>
	builder
		.setName('utils')
		.setDescription('Utility commands')
		.addSubcommandGroup((group) => group.setName('poll').setDescription('Poll tools'))
)
export class UtilsCommand extends Subcommand {}

import { Command, RegisterAsSubcommand } from '@wolfstar/plugin-subcommands-advanced';

@RegisterAsSubcommand('utils', (builder) => builder.setName('ping').setDescription('Ping the bot'))
export class PingCommand extends Command {
	public override chatInputRun(interaction: Command.ChatInputInteraction) {
		return interaction.reply({ content: 'Pong!' });
	}
}

import { Command, RegisterAsSubcommandGroup } from '@wolfstar/plugin-subcommands-advanced';

@RegisterAsSubcommandGroup('utils', 'poll', (builder) => builder.setName('create').setDescription('Create a poll'))
export class PollCreateCommand extends Command {
	public override chatInputRun(interaction: Command.ChatInputInteraction) {
		return interaction.reply({ content: 'Created!' });
	}
}

import { Command } from '@wolfstar/plugin-subcommands-advanced';

export class PingCommand extends Command {
	public constructor(context: Command.LoaderContext, options: Command.Options) {
		super(context, {
			...options,
			registerSubCommand: {
				parentCommandName: 'utils',
				slashSubcommand: (builder) => builder.setName('ping').setDescription('Ping!')
			}
		});
	}

	public override chatInputRun(interaction: Command.ChatInputInteraction) {
		return interaction.reply({ content: 'Pong!' });
	}
}