Build Your First Plugin

src/userplugins/prefixEveryMessage/index.ts

/*
 * Vencord, a Discord client mod
 * Copyright (c) 2026 Vendicated and contributors
 * SPDX-License-Identifier: GPL-3.0-or-later
 */

import { definePluginSettings } from "@api/Settings";
import type { MessageObject } from "@api/MessageEvents";
import { EquicordDevs } from "@utils/constants";
import definePlugin, { OptionType } from "@utils/types";

const settings = definePluginSettings({
    enabled: {
        type: OptionType.BOOLEAN,
        description: "Add the prefix to outgoing messages.",
        default: true
    },
    prefix: {
        type: OptionType.STRING,
        description: "Text to add before each outgoing message.",
        default: "[Illegalcord] "
    }
});

export default definePlugin({
    name: "PrefixEveryMessage",
    description: "Adds a configurable prefix to messages you send.",
    authors: [EquicordDevs.irritably],
    settings,

    onBeforeMessageSend(_channelId: string, message: MessageObject) {
        const { enabled, prefix } = settings.store;
        if (!enabled || !message.content.trim()) return;

        message.content = prefix + message.content;
    }
});

pnpm build
pnpm inject