Android Testing

Compose Ui

new-silvermoon

Guidelines for writing Jetpack Compose UI, covering state hoisting, modifiers, performance, theming and previews.

Kotlin Concurrency Expert

new-silvermoon

Reviews and fixes Kotlin Coroutines concurrency issues in Android code, covering scopes, lifecycle safety and thread safety.

Android Viewmodel

new-silvermoon

Guidance for implementing Android ViewModels with Kotlin explicit backing fields, StateFlow UI state, and SharedFlow one-off events.

Navigation3

new-silvermoon

Guides implementing state-driven navigation in Jetpack Compose apps using Android's Navigation 3 library.

Android Accessibility

new-silvermoon

Checklist and prompts for auditing and fixing Android accessibility issues, especially in Jetpack Compose.

Android Data Layer

new-silvermoon

Guides Android developers in building an offline-first data layer with Repository, Room, Retrofit, and Hilt.

Playground

anthropics

Featured

Builds self-contained interactive HTML playgrounds with controls, live preview, and copyable prompt output.

M5 Onboard

anthropics

Featured

Provisions M5Stack ESP32 boards by detecting them on USB, flashing UIFlow 2.0 firmware, and installing a MicroPython app bundle.

Cardputer Buddy

anthropics

Featured

Guides iterating on a Cardputer-Adv MicroPython app bundle: adding apps, pushing files over USB-serial, tailing logs, and running REPL commands.

Web Design Guidelines

vercel-labs

Featured

Reviews UI code against Web Interface Guidelines fetched from a remote source and reports findings as file:line entries.

Vercel React Native Skills

vercel-labs

Featured

React Native and Expo best-practice rules covering list performance, animation, navigation, UI patterns, state, and monorepo setup.

Vercel React Best Practices

vercel-labs

Featured

Vercel's React and Next.js performance guidelines, organized as 70 rules for writing, reviewing, and refactoring code.