Does this skill support unit testing?

Yes, it includes comprehensive patterns for the bun:test runner, which is compatible with Jest and provides built-in mocking, spying, and faster execution.

Why should I use Bun APIs over Node.js equivalents?

Bun APIs like Bun.$ and Bun.file are designed for speed and simplicity, often executing significantly faster than their Node.js counterparts while providing cleaner syntax and built-in security features.

How does Bun handle file I/O compared to Node?

Bun uses the Bun.file API which returns a lazy-loaded BunFile object, making it much more efficient for reading and writing large files compared to the standard Node fs module.

Can this skill help with shell injection security?

Absolutely. By using Bun.$, the skill ensures that interpolated values in shell commands are automatically escaped to prevent common shell injection vulnerabilities.

Is it suitable for monorepo management?

Yes, it provides guidance on configuring Bun workspaces and the bunfig.toml file for efficient management of multiple packages within a single repository.

Bun Runtime Guide

Name: Bun Runtime Guide
Author: nklisch

bynklisch

•

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Optimizes code for the Bun runtime by prioritizing native APIs for shell execution, file I/O, and testing.

This skill equips Claude with specialized knowledge of the Bun runtime, enabling it to write high-performance TypeScript and JavaScript code. It focuses on replacing traditional Node.js modules with Bun's faster alternatives, such as using Bun.$ for shell commands, Bun.file for I/O operations, and bun:test for unit testing. By providing specific patterns for workspace management and binary compilation, this skill ensures that generated code is idiomatic, efficient, and fully leverages the Bun ecosystem.

主な機能

01Replaces Node.js child_process with high-performance Bun.$ shell API

022 GitHub stars

03Configures and manages Bun workspaces and bunfig.toml settings

04Utilizes the built-in bun:test runner for Jest-compatible testing

05Implements fast file operations using Bun.file and Bun.write

06Provides guidance on cross-compiling standalone binaries via bun build

ユースケース

01Migrating a Node.js project to use Bun's native performance-oriented APIs

02Setting up monorepo structures using Bun's native workspace support

03Writing cross-platform shell scripts with automatic interpolation safety

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nklisch/skills bun

For use in Claude.ai and ChatGPT