Developer Tools & Repos Agent Skills for Codex CLI

Vyper smart contract compiler internals.

Wallet connection and transaction management for dApps using wagmi and viem.

Apple Human Interface Guidelines for iPad.

Warming up the renderer before capturing output.

Expert guidance for building watchOS apps with SwiftUI, WidgetKit complications, notifications, Siri/App Intents, HealthKit, and WatchKit…

Apple Human Interface Guidelines for Apple Watch.

Use when building ANY watchOS app — app structure, independent apps, Watch Connectivity, Smart Stack widgets, complications, controls…

When to activate: watchOS app development, WatchConnectivity, complications, Health data, always-on display, SwiftUI on watchOS

Apply wave physics principles when working on simulation code.

Brownfield improvements — the full WDS pipeline in miniature for existing products

Entity-level merge with weave. Use when setting up weave, previewing merges, reducing false Git conflicts, or validating merge-driver…

Prepare and optimize browser-game 3D assets.

Meta-skill for combining Three.js, GSAP ScrollTrigger, React Three Fiber, Motion, and React Spring for complex 3D web experiences.

Web browser game development principles.

Search GitHub, Stack Exchange, Chinese technical communities, official documentation, and general developer web sources for software…

Build modern full-stack web applications with Next.js (App Router, Server Components, RSC, PPR, SSR, SSG, ISR), Turborepo (monorepo…

Set browser-game architecture before implementation.

When to activate: Core Web Vitals, LCP, INP, CLS, performance optimization, lazy loading, code splitting, resource hints

myfy web routing with FastAPI-like decorators.

WebGL performance optimization is about intelligent resource management - knowing when to render, what to render, and how to render…

Enforce SOLID principles in webhook architecture for maintainability and extensibility.