developing-ios-apps
Develops iOS applications with XcodeGen, SwiftUI, and SPM. Triggers on XcodeGen project.yml configuration, SPM dependency issues, device deployment problems, code signing errors, camera/AVFoundation debugging, iOS version compatibility, or "Library not loaded @rpath" framework errors. Use when building iOS apps, fixing Xcode build failures, or deploying to real devices.
repomix-unmixer
Extracts files from repomix-packed repositories, restoring original directory structures from XML/Markdown/JSON formats. Activates when users need to unmix repomix files, extract packed repositories, restore file structures from repomix output, or reverse the repomix packing process.
python
Python development with ruff, mypy, pytest - TDD and type safety
medusa
Medusa headless commerce - modules, workflows, API routes, admin UI
android-kotlin
Android Kotlin development with Coroutines, Jetpack Compose, Hilt, and MockK testing
pwa-development
Progressive Web Apps - service workers, caching strategies, offline, Workbox
android-java
Android Java development with MVVM, ViewBinding, and Espresso testing
agentic-development
Build AI agents with Pydantic AI (Python) and Claude SDK (Node.js)
react-native
React Native mobile patterns, platform-specific code
shopify-apps
Shopify app development - Remix, Admin API, checkout extensions
flutter
Flutter development with Riverpod state management, Freezed, go_router, and mocktail testing
datasette-plugin-writer
Guide for writing Datasette plugins. This skill should be used when users want to create or develop plugins for Datasette, including information about plugin hooks, the cookiecutter template, database APIs, request/response handling, and plugin configuration.
python-development
Modern Python development with Python 3.12+, Django, FastAPI, async patterns, and production best practices. Use for Python projects, APIs, data processing, or automation scripts.
backend-development
Backend API design, database architecture, microservices patterns, and test-driven development. Use for designing APIs, database schemas, or backend system architecture.
javascript-typescript
JavaScript and TypeScript development with ES6+, Node.js, React, and modern web frameworks. Use for frontend, backend, or full-stack JavaScript/TypeScript projects.
llm-application-dev
Building applications with Large Language Models - prompt engineering, RAG patterns, and LLM integration. Use for AI-powered features, chatbots, or LLM-based automation.
video-downloader
Downloads videos from YouTube and other platforms for offline viewing, editing, or archival. Handles various formats and quality options.
troubleshooting
Diagnose and resolve common issues during spec-driven development and implementation. Learn strategies for handling spec-reality divergence, dependency blocks, unclear requirements, and other execution challenges.
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