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Found 512 Skills
Guide feature development for full-stack applications with architecture focus. Covers Next.js App Router patterns, NestJS backend services, database models, data workflows, and seamless integration. Use when adding new features, refactoring existing code, or planning major changes.
Write TypeScript and JavaScript code like a top engineer using functional programming principles. Use when writing new code, reviewing existing code, or refactoring TS/JS projects. Applies pure functions, immutability, function composition, higher-order functions, declarative style, and avoiding shared state using native patterns only (no external libraries). Always analyzes the existing codebase first to understand patterns and conventions before making changes or suggestions.
Guides technical decisions, architecture, and implementation. Use for tech choices, system design, API design, refactoring, or "how should I build this" questions.
Ruby on Rails testing best practices for writing effective, maintainable test suites with RSpec. This skill should be used when writing, reviewing, or refactoring Rails tests to ensure proper test design, data management, and coverage patterns. Triggers on tasks involving RSpec specs, model tests, request specs, system tests, factory definitions, Capybara interactions, Sidekiq job tests, or test suite optimization. Complementary to rails-dev, ruby-optimise, and ruby-refactor skills.
Expert guidance for writing, refactoring, and structuring CSS using BEM (Block Element Modifier) methodology. Provides proper CSS class naming conventions, component structure, and Optics design system integration for maintainable, scalable stylesheets.
Generates technical implementation plans and architectural strategies that enforce the Project Constitution. Use when designing new features, starting implementation tasks, refactoring code, or ensuring compliance with critical standards like Testability-First Architecture, security mandates, testing strategies, and error handling.
This skill provides expert-level guidance for refactoring VS Code extension code. Use when extracting classes or functions, reducing code duplication, improving type safety, reorganizing module structure, applying design patterns, or optimizing performance. Covers systematic refactoring workflows, code smell detection, safe transformation techniques, and VS Code-specific patterns.
Generate structured prd.json files for autonomous agent loops (Ralph Wiggum pattern). Use when planning bulk/batch tasks, migrations, refactoring campaigns, or any work that can be decomposed into independent items with verification steps.
MoonBit (.mbt) coding standards and best practices. Use when writing, reviewing, or refactoring MoonBit code.
Use when writing, fixing, editing, or refactoring Python tests. Enforces Clean Code principles—fast tests, boundary coverage, one assert per test.
Dead code cleanup and consolidation specialist. Use PROACTIVELY for removing unused code, duplicates, and refactoring. Runs analysis tools to identify dead code and safely removes it.
Production-grade web application UI design based on Refactoring UI principles. ALWAYS activate for: landing page, dashboard, auth screens, hero sections, card design, button design, form inputs, navigation, layouts, spacing decisions, typography hierarchy, color selection, shadows, depth, empty states, background decoration. Provides design workflow, visual hierarchy, spacing systems (4px grid), type scale, HSL color systems, shadow elevation, finishing touches. Turkish: sayfa tasarımı, UI/UX, frontend tasarım, web tasarım, güzel arayüz, modern tasarım, card tasarımı, buton stili, form tasarımı, renk paleti, tipografi. English: beautiful interface, sleek design, premium feel, visual hierarchy, whitespace, color palette, typography scale.