Design

Designs deliberate practice exercises applying evidence-based learning strategies like retrievalpractice, spaced repetition, and interleaving. Activate when educators need varied exercise types(fill-in-blank, debug-this, build-from-scratch, extend-code, AI-collaborative) targeting learningobjectives with appropriate difficulty progression. Creates exercise sets that apply cognitivescience principles to maximize retention and skill development. Use when designing practiceactivities for Python concepts, creating homework assignments, generating problem sets, orevaluating exercise quality.

Design reusable prompt templates that encode domain-specific patterns for recurring AI development tasks.Use this skill when you've executed similar prompts 2+ times and need to capture the pattern as reusableintelligence. Transforms one-off prompts into parameterized templates that maintain quality while reducingcognitive load. Helps students move from Layer 2 (AI Collaboration) to Layer 3 (Intelligence Design) inthe 4-Layer Teaching Method.

Orchestrates JUCE plugin implementation through stages 1-3 (Foundation, DSP, GUI) using subagent delegation with automatic validation after each stage. Use when implementing plugins after planning completes, or when resuming with /continue command. Invoked by /implement command.

Use when implementing polymorphism and interfaces in object-oriented design. Use when creating flexible, extensible systems with interchangeable components.

Use when designing solutions, adding features, or refactoring by applying KISS, YAGNI, and Principle of Least Astonishment to write simple, predictable code.

Use when demonstrating plugin workflow features - shows how skills can guide multi-step processes

Use when working with Maven build phases, goals, profiles, or customizing the build process for Java projects.

Use when building reliable and scalable distributed systems.

Use when protocol-oriented programming in Swift including protocol extensions, default implementations, protocol composition, associated types, and designing flexible, reusable abstractions that favor composition over inheritance.

Use when functional programming patterns in Scala including higher-order functions, immutability, pattern matching, algebraic data types, monads, for-comprehensions, and functional composition for building robust, type-safe applications.

Use when scala collections including immutable/mutable variants, List, Vector, Set, Map operations, collection transformations, lazy evaluation with views, parallel collections, and custom collection builders for efficient data processing.

Use when building reusable component patterns with Tailwind CSS. Covers component extraction, @apply directive, and composable design patterns.

Use when scala's advanced type system including generics, variance, type bounds, implicit conversions, type classes, higher-kinded types, path-dependent types, and abstract type members for building type-safe, flexible APIs.

This skill should be used when running .NET tests selectively with a build-first, test-targeted workflow. Use it for running tests with xUnit focus.

Use when eSLint built-in rules including rule configuration, severity levels, and disabling strategies.

Use when working with React Native Web projects. Provides core concepts, components, and cross-platform patterns for building web applications with React Native.

Use when configuring Expo apps with app.json, app.config.js, and EAS configuration. Covers app metadata, plugins, build configuration, and environment variables.

Use when applying Checkstyle built-in checks for Java code including naming conventions, code metrics, and suppressions.

Use when implementing Apollo caching strategies including cache policies, optimistic UI, cache updates, and normalization.

Use when building iOS apps with UIKit, implementing MVVM/MVC/Coordinator patterns, or integrating UIKit with SwiftUI.