AgentSkillsCN

bun-patterns

在后端代码中验证Bun特有的模式。适用于审查或编写后端TypeScript文件时，确保使用Bun API而非Node.js的传统模式。

SKILL.md
--- frontmatter
name: bun-patterns
description:
  Verify Bun-specific patterns in backend code. Use when reviewing or writing
  backend TypeScript files to ensure Bun APIs are used instead of Node.js
  patterns.
allowed-tools: Read, Grep, Glob

Bun Patterns Verification

Automatically check that backend code uses Bun-specific APIs instead of Node.js patterns.

When to Apply

  • •Reviewing files in src/backend/
  • •Writing new backend code
  • •Checking file I/O operations

Patterns to Enforce

File Operations

Correct (Bun):

typescript
// Reading files
const content = await Bun.file(path).text();
const json = await Bun.file(path).json();

// Writing files
await Bun.write(path, content);

// Checking existence
const exists = await Bun.file(path).exists();

Incorrect (Node.js):

typescript
// These should NOT be used in backend
import fs from 'fs';
import { readFile, writeFile } from 'fs/promises';
fs.readFileSync(path);

Process and Environment

Correct (Bun):

typescript
const port = Bun.env.PORT || 9339;

Incorrect:

typescript
const port = process.env.PORT; // Less preferred in Bun

HTTP Server

Correct (Bun):

typescript
Bun.serve({
  port: 9339,
  fetch(req) {
    return new Response('OK');
  },
});

Verification Steps

  1. •Search for Node.js imports: import fs from, require('fs')
  2. •Check file operations use Bun.file() or Bun.write()
  3. •Verify WebSocket server uses Bun patterns
  4. •Confirm no fs.readFile or fs.writeFile calls

Reference