bun

Use Bun instead of Node.js, npm, pnpm, or vite.

Generate Convert Improve

Install / Use

npx skills add ReverseGem7/clivex

Installs into whichever agent you are using.

About this skill

📐

Cursor Rules

Cursor IDE rules (v2)

Quality Score

54/100

Our assessment of bun

bun scores 54/100 on our quality scale, 4241st of 4,631 Development & Engineering skills we index.

Its Cursor Rules is 2.5 KB long, split into 3 sections with 5 code examples: a solid amount of guidance for an agent.

It has no GitHub stars yet, so there is no community track record; judge it on its content.

Substance

26/30

Structure

15/20

Description

8/15

Adoption

0/20

Freshness

5/15

Maintenance, license and trust

We could not determine when the repository was last updated.
Our last check on 2026-09-16 found the source still online.
No license is declared. By default that means all rights are reserved: you can read it, but reusing or redistributing it is not clearly permitted. Ask the author before building on it commercially.
Its trust signals score 68/100, with 3 cautions from licensing, adoption, age or documentation. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.

Safety scan

No issues found

Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful.

AI review by kimi-k2.7-code on 2026-10-27. Automated pattern scan on 2026-10-26. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.

bun compared with similar skills

All 4 of these similar skills score higher than bun; compare them before choosing.

Skill	Score	Stars	Updated	Format
bun (this skill)by ReverseGem7	54	0	—	Cursor Rules
taste-skillby Leonxlnx	100	104.0k	today	CLAUDE.md
ai-job-searchby ai-job-search-dev	100	67.0k	today	CLAUDE.md
claude-howtoby luongnv89	100	45.7k	1d ago	CLAUDE.md
algorithmic-artby anthropics	100	177.9k	35d ago	SKILL.md

Frequently asked questions

How do I install bun?: Run npx skills add ReverseGem7/clivex. The install tabs above show the steps for each supported agent.
Which AI agents does bun work with?: It is written for Cursor, as a Cursor Rules file. Other agents that read the same format can often use it too.
Is bun safe to use?: Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. An AI review of the same text found nothing harmful. It declares no license and scores 68/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
Is bun still maintained?: We could not determine when the repository was last updated.

Skill content

View source on GitHub

description: Use Bun instead of Node.js, npm, pnpm, or vite. globs: ".ts, .tsx, .html, .css, .js, .jsx, package.json" alwaysApply: false

Default to using Bun instead of Node.js.

Use bun <file> instead of node <file> or ts-node <file>
Use bun test instead of jest or vitest
Use bun build <file.html|file.ts|file.css> instead of webpack or esbuild
Use bun install instead of npm install or yarn install or pnpm install
Use bun run <script> instead of npm run <script> or yarn run <script> or pnpm run <script>
Bun automatically loads .env, so don't use dotenv.

APIs

Bun.serve() supports WebSockets, HTTPS, and routes. Don't use express.
bun:sqlite for SQLite. Don't use better-sqlite3.
Bun.redis for Redis. Don't use ioredis.
Bun.sql for Postgres. Don't use pg or postgres.js.
WebSocket is built-in. Don't use ws.
Prefer Bun.file over node:fs's readFile/writeFile
Bun.$ls instead of execa.

Testing

Use bun test to run tests.

import { test, expect } from "bun:test";

test("hello world", () => {
  expect(1).toBe(1);
});

Frontend

Use HTML imports with Bun.serve(). Don't use vite. HTML imports fully support React, CSS, Tailwind.

Server:

import index from "./index.html"

Bun.serve({
  routes: {
    "/": index,
    "/api/users/:id": {
      GET: (req) => {
        return new Response(JSON.stringify({ id: req.params.id }));
      },
    },
  },
  // optional websocket support
  websocket: {
    open: (ws) => {
      ws.send("Hello, world!");
    },
    message: (ws, message) => {
      ws.send(message);
    },
    close: (ws) => {
      // handle close
    }
  },
  development: {
    hmr: true,
    console: true,
  }
})

HTML files can import .tsx, .jsx or .js files directly and Bun's bundler will transpile & bundle automatically. <link> tags can point to stylesheets and Bun's CSS bundler will bundle.

<html>
  <body>
    <h1>Hello, world!</h1>
    <script type="module" src="./frontend.tsx"></script>
  </body>
</html>

With the following frontend.tsx:

import React from "react";

// import .css files directly and it works
import './index.css';

import { createRoot } from "react-dom/client";

const root = createRoot(document.body);

export default function Frontend() {
  return <h1>Hello, world!</h1>;
}

root.render(<Frontend />);

Then, run index.ts

bun --hot ./index.ts

For more information, read the Bun API docs in node_modules/bun-types/docs/**.md.

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ReverseGem7

View profile

View on GitHub

GitHub Stars0

CategoryDevelopment

UpdatedNaNy ago

Forks0

ReverseGem7/bun

Trust signals

68/100

From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.

2 medium1 low

bun