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bun

Run JavaScript tests and scripts with Bun's runtime and tooling.

15|4|Updated Jan 20, 2026
Search Tags:#typescript#testing#performance#javascript#runtime#bun#bundler
One-click install
npx skills add https://github.com/cofin/flow --skill bun-cofin
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: bun
Source: https://github.com/cofin/flow/tree/main/skills/bun
Command: npx skills add https://github.com/cofin/flow --skill bun-cofin

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill leverages Bun, a high-performance JavaScript runtime, bundler, and test runner, to significantly speed up development workflows and enable low-latency integrations with other systems.

Core Features & Use Cases

  • Fast Runtime: Use Bun as a drop-in replacement for Node.js with optimized HTTP server and file I/O.
  • Integrated Tooling: Utilize Bun's native TypeScript support, fast test runner, and package manager.
  • High-Performance Integration: Implement low-latency communication patterns with other languages using Shared Memory, Unix Domain Sockets, and efficient serialization.
  • Native Bindings: Integrate Rust code using N-API or Bun's FFI for performance-critical modules.
  • Use Case: Speed up your CI/CD pipeline by using Bun for test execution and dependency installation, or build a high-throughput API service that communicates efficiently with a Rust backend.

Quick Start

Execute the tests in the current project using the bun test command.

Frequently Asked Questions about bun

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I speed up TypeScript test execution and dependency installation in my CI/CD pipeline?▼

To speed up TypeScript test execution, run the `bun test` command to utilize Bun's high-performance JavaScript runtime, which provides native TypeScript transpilation and fast package management for low-latency workflows.

Can I use Bun as a drop-in replacement for Node.js in high-throughput API services?▼

Yes, you can use Bun as a drop-in Node.js replacement to optimize HTTP serving and file I/O operations, enabling low-latency communication patterns for high-throughput API services.

What is the best way to implement low-latency IPC between JavaScript and a Rust backend?▼

The best way to implement low-latency IPC with a Rust backend is using Bun's native bindings via N-API and FFI, alongside Shared Memory and Unix Domain Sockets for efficient cross-language communication.

Does Bun support native TypeScript transpilation without additional configuration?▼

Yes, Bun supports native TypeScript transpilation out of the box, allowing you to execute TypeScript files directly without requiring external compilers or complex build configurations.

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