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Swift engineer and AI agent infrastructure builder shipping native tools for agentic workflows.

Multi-agent orchestration and consensusAgent-native developer toolingNative Apple platform librariesAI agent skills and knowledge systemsCLI tools and terminal automationCross-platform agent integration

inferred from the public footprint

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Active 1d ago
Yokohama, Japan / China

Wei Wang

Top 3%
@onevcat

Swift and cross-platform toolmaker behind Rainbow (console output), Hedwig (SMTP email), and Magpie (self-hosted link collection). 49k stars across projects; top 3% contributor globally.

Kingfisher. I built a Swift library that downloads and caches images from the web.

24k

FengNiao. I made a tool that finds and removes unused images from Xcode projects.

3.6k

APNGKit. I built a high-performance tool for playing animated PNG images on iOS and Mac.

2.3k

Rainbow. I built a tool that adds color and style to terminal output in Swift.

1.9k

Hedwig. I built a Swift package that sends emails to any SMTP server.

1.1k

UniWebView Docs. I built the documentation site for UniWebView.

215

Wei Wang. I make tools that give AI agents eyes and hands on your devices.

8

Magpie. I built a system that saves and organizes interesting links from the web.

84

Let's Vision 2026. I shared how engineers can work better with AI agents, and published everything.

264

AI Ship. I made a site showing my real AI workflows and the prompts that work.

50

Argue. I built a debate engine where multiple AI agents challenge each other and vote on answers.

268

TransCrab. I built a template that teaches AI assistants to fetch, translate, and publish web pages.

24

ChimeraGate. I built a tool that lets Claude work with OpenAI-compatible software.

31

Chroma. I made a Swift tool that adds syntax highlighting to terminal code output.

41

Skills. I built a collection of skills that AI agents can use.

24

ObservationBP. I made Apple's change-tracking system work on older iOS versions.

128

Dictation Polish. I made a tool that fixes voice-to-text mistakes automatically.

18

MeetCat. I made a tool that automatically joins your Google Meet calls on time.

13

Delegate. I made a library that simplifies how app parts communicate.

70

Xin. I built a command-line email tool for Fastmail that outputs plain text.

18

Apple Versions. I built a reference showing all Apple operating system release dates.

7

Vno. I ported a minimal Ghost theme to Jekyll blogs.

550

GitHub Battle. I made a tool that compares two GitHub users head to head.

2

SpriteKit Simple Game. I ported a classic game tutorial to Apple's modern game system.

60

VVImageTint. I made a tool that recolors images without creating new files.

189

PhotoData. I built a demo showing better testing practices for iPhone apps.

13

DebuggableContext. I made a debug menu that appears when you shake your iOS device.

96

UITestDemo. I made a demo showing how to test iPhone apps like a real person would.

21

VVStack. I made a demo project showing test-first development in action.

20

JekyllScroll. I ported a Ghost theme to Jekyll for static websites.

19

ChatBot. I made a sample chatbot that handles basic greetings.

2

Transition. I made a working example of custom screen animations for iOS.

186

Prowl. I built a clean website template that gets you online quickly.

1

Kingfisher Crash. I made a test case that shows a crash in Kingfisher with SwiftUI.

10

UniWebView. I made a plugin that puts websites inside Unity games.

17

Submail. I built email sending for Vapor web applications.

4

VVPluginDemo. I made a demo showing how to write an Xcode plugin.

7

VVDocumenter. I made a tool that auto-generates documentation comments for code.

8.2k

ComponentNetworking. I built a way for app parts to communicate without depending on each other.

86

SwiftUI Book Issue. I collected real problems people hit building apps with SwiftUI.

75

Victor Hugo. I made a starter template for building websites with Hugo.

88

AddressParser. I built a tool that reads email addresses in any format and parses them correctly.

66

LGTM Images. I collected images for code review approval messages.

16

MimeType. I made a tool that identifies file types from their names.

41

Advent 2021. I solved Advent of Code 2021 puzzles in Swift.

2

Math.swift. I wrote a math toolbox for people building Apple apps.

4

UserNotificationDemo. I made a demo project showing how to send iPhone notifications.

152

Texas Poker. I built a Texas Hold'em poker game for mobile.

10

Oh My Agents. I made a marketplace for AI assistants people actually use.

2

XUPorter. I made a tool that adds files and libraries to Unity's Xcode projects automatically.

595