How does this skill handle WebSocket authentication?

It demonstrates how to intercept the initial HTTP request, verify authentication tokens, and attach user-specific data to the connection during the upgrade process.

Can I implement chat rooms using this skill?

Absolutely. It includes detailed examples for topic-based pub/sub, allowing you to subscribe users to specific rooms and broadcast messages selectively.

Is performance management included?

Yes, the skill covers critical performance features like per-message compression, backpressure limits, and max payload configurations to ensure stability.

Does this skill support binary data transmission?

Yes, it provides implementation patterns for sending and receiving Uint8Array and Buffer data types efficiently using Bun's native engine.

Bun WebSocket Server

Name: Bun WebSocket Server
Author: secondsky

bysecondsky

•

API Development

Implements high-performance, real-time communication architectures using Bun's native WebSocket support and integrated pub/sub system.

This skill enables developers to leverage Bun's ultra-fast native WebSocket implementation directly within Claude Code. It provides comprehensive guidance on building scalable real-time applications, covering everything from basic server setup and message handling to advanced patterns like topic-based pub/sub, binary data transmission, and server-side broadcasting. By utilizing the integrated Bun.serve() API, this skill helps you implement efficient backpressure management, authentication, and compression to ensure production-grade performance for chat apps, live dashboards, and collaborative tools.

Key Features

01Advanced connection lifecycle management including authentication and idle timeouts

02Built-in support for message compression and backpressure control

03Built-in Pub/Sub system for efficient topic-based message broadcasting

0421 GitHub stars

05Comprehensive handling for string, JSON, and binary data payloads

06Native Bun.serve() integration for high-performance WebSocket upgrades

Use Cases

01Creating collaborative multi-user editing tools requiring low-latency binary synchronization

02Implementing live data dashboards and financial tickers using server-level publishing

03Building real-time chat applications with room-based messaging and presence tracking

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add secondsky/claude-skills bun-websocket-server

For use in Claude.ai and ChatGPT

Download Skill