The one and only agent harness for complex codebases. Project memory, planning, execution, and verified completion inside Codex.

AXe is a CLI tool for interacting with Simulators using Apple's Private Accessibility APIs.

Use Garry Tan's exact Claude Code setup: 23 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA

Lightweight coding agent that runs in your terminal

Skills for Real Engineers. Straight from my .agents directory.

Production-grade engineering skills for AI coding agents.

Add expert Swift Concurrency guidance to your AI coding tool (Agent Skills open format): safe concurrency, performance optimization, and Swift 6 migration.

OmX - Oh My codeX: Your codex is not alone. Add hooks, agent teams, HUDs, and so much more.

Xcode 27 beta 4 system prompts and internal documentation

A lightweight, pure-Swift library for downloading and caching images from the web.

An agentic skills framework & software development methodology that works.

Stanford CS146S: The Modern Software Developer - Korean Edition