Frontend

Build and implement Angular 18 standalone components, TypeScript services with Signals and RxJS, routing with guards, and Tailwind CSS styling for Photo Map MVP. Use when creating, developing, or implementing TypeScript components, services, guards, forms, HTTP calls, map integration (Leaflet.js), or responsive UI layouts with Tailwind utilities. File types: .ts, .html, .css, .scss

Plan development work following KB skill's structured approach with PRDs,phases, tickets, TDD specifications, and parallel execution planning.WORKFLOW:1. KB LOOKUP - Check existing PRDs, patterns, code maps, SOPs2. SCOPE - Small (ticket only) or Large (PRD + phases)?3. PRD - Create for large work4. PHASES - Break into 2-5 tickets + Phase E2E5. TICKETS - Create with TDD spec (3-spec.md is critical)6. PARALLEL ANALYSIS - Dependency matrix, file conflicts, execution mode7. GIT SETUP - Phase branch, worktrees for parallel tickets8. QUESTIONS - Resolve all ambiguity before implementationUse when:- User asks to implement something non-trivial- User says "plan", "design", "how would you implement"- Task requires multiple files or sessions- Requirements are unclear

Guide for conducting thorough code reviews focusing on correctness, security, performance, maintainability, and best practices

Automatic enforcement of TypeScript/JavaScript coding style, ESLint standards, type safety, and modern patterns. Use when writing TypeScript or React code to ensure strict type safety and modern ES2024+ patterns.

Implements Auth0 authentication with Next.js SDK, React hooks, role-based access, and API protection. Use when integrating Auth0, implementing enterprise SSO, or needing managed authentication with MFA.

Use this skill whenever the user wants to design, refactor, or extend reusable UI components in a Next.js (App Router) + TypeScript + Tailwind + shadcn/ui project, following a consistent design system and accessibility best practices.

Applies Practice Hub's design system, brand colors, and component patterns. Use when building UI components, enforcing design standards, or ensuring consistency across Practice Hub modules (Client Hub, Admin Panel, Practice Hub). Critical for maintaining solid backgrounds, glass-card patterns, and multi-tenant architecture.

Validate and grade Claude Code Skills, Commands, Subagents, and Hooks for quality and correctness. Check YAML syntax, verify naming conventions, validate required fields, test activation patterns, assess description quality. Generate quality scores using Q = 0.40R + 0.30C + 0.20S + 0.10E framework with specific improvement recommendations. Use when validating artifacts, checking quality, troubleshooting activation issues, or ensuring artifact correctness before deployment.

Write React hooks following the Epic architecture patterns. Use when creating custom hooks for state management, server action calls, optimistic updates, and validation. Triggers on "create a hook", "add a hook", or "write a hook for".

TypeScript patterns for React including interfaces, type annotations, generics, null handling, and utility types. Use when writing type-safe React code.

Write and maintain CSS following project conventions using consistent methodologies like Tailwind CSS, BEM, CSS modules, or utility classes, while creating distinctive, aesthetically excellent designs. Use this skill when writing CSS styles, applying Tailwind utility classes, creating custom CSS, working with styling files (*.css, *.scss, *.module.css, globals.css, tailwind.config.*), maintaining design systems and design tokens, defining CSS variables for colors and spacing, implementing typography styles with unique font choices, creating atmospheric backgrounds and depth, adding animations and micro-interactions, avoiding framework style overrides, avoiding generic "AI slop" aesthetics (purple gradients, Inter/Roboto everywhere, cookie-cutter designs), optimizing CSS for production with purging and tree-shaking, or ensuring consistent styling patterns across the application. Apply this skill when styling components, refactoring CSS code, setting up design systems, choosing fonts and colors, creating animat

Use when needing to extract CSS styles from a DOM element, inspect computed styles, check font-size/color/margin of elements, or analyze visual styling of a web page. Requires a CSS selector to target the element.

This skill should be used when implementing Supabase email/password authentication in Next.js applications. Automates the complete setup including client/server utilities, login/register pages, auth callback handling, middleware protection, and email configuration. Handles common errors like PKCE flow issues, cookie management, and admin role verification.

Integrate Zod v4 with React Hook Form, Next.js, Express, tRPC, and other frameworks for type-safe validation

Create Angular 20 standalone components using modern patterns: Signals for state management, input()/output() functions (not decorators), @if/@for/@switch control flow (not *ngIf/*ngFor), inject() dependency injection (not constructor), and OnPush change detection. Use this skill when scaffolding new UI components that need reactive state, form handling, or integration with services following the three-layer architecture.

Expert guide for React state management with Zustand, Context, and modern patterns. Use when managing global state, forms, complex UI state, or optimizing re-renders.

dotnet coding guidelines and best practices. MUST follow these rules. Use when reviewing or writing .NET code or tasks.

Next.js checkout UI components with Stripe Elements and payment forms. Use when creating checkout pages, payment forms, subscription UIs, customer portals, or when user mentions Stripe Elements, payment UI, checkout flow, subscription management, or payment forms.

Expert skill for developing SillyTavern frontend interfaces and scripts using Tavern Helper framework. Use when users request creating interactive UI for character cards, background scripts for automation, MVU variable visualization, or any SillyTavern extension development. Provides complete tech stack (Vue/React/PixiJS), API documentation, development best practices, and live preview workflows.

Generates .stylelintrc configuration for linting CSS, SCSS, and Vue component styles. Auto-detects stylesheet type and fetches latest package versions for plugins.