Enforces project client-side Sentry monitoring conventions when implementing error boundaries, route-level error pages, user interaction tracking, and client component error handling. This skill ensures consistent patterns for global error handling, breadcrumbs, and front-end error capture.
Modern patterns for Next.js 16 and TanStack Start v1
Design effective loading states, skeleton screens, and empty states that maintain user confidence. Use when content takes time to load, when showing progress, or handling empty data scenarios. Triggers on "loading state", "skeleton screen", "empty state", "spinner", "progress bar", "loading animation", "zero state".
Master modern React state management with Redux Toolkit, Zustand, Jotai, and React Query. Use when setting up global state, managing server state, or choosing between state management solutions.
Component and type design for TypeScript + React code. Use when planning new features, designing components and custom hooks, preventing primitive obsession, or when refactoring reveals need for new abstractions. Focuses on feature-based architecture and type safety.
React Hook Form patterns with Zod validation. Use when implementing forms, validation schemas, form state management, edit forms with unsaved changes, or array fields.
Optimize React application performance with lazy loading, code splitting, memoization, and virtualization. Use when addressing slow renders, large bundles, or memory issues.
Best practices and patterns for Next.js App Router, Server Actions, and Routing in this project.
Master responsive layout design using modern CSS (Flexbox, Grid), mobile-first approach, and breakpoint strategies. Create layouts that adapt beautifully across all devices while maintaining accessibility and performance. Includes container queries, aspect ratios, and advanced responsive patterns.
Frontend development guidelines for React/TypeScript applications. Modern patterns including Suspense, lazy loading, useSuspenseQuery, file organization with features directory, MUI v7 styling, TanStack Router, performance optimization, and TypeScript best practices. Use when creating components, pages, features, fetching data, styling, routing, or working with frontend code.
Modern React stack: React 19, TypeScript, Tailwind CSS, Vite, TanStack Query. Use when: building React apps, components, state management, or UI. Triggers: "react", "frontend", "tailwind", "vite", "typescript react", "component", "useState", "tanstack", "react query".
Complete design system reference for React applications. Covers colors, typography, spacing, component patterns, glassmorphism effects, GPU-accelerated animations, and WCAG AA accessibility. Use when implementing UI, choosing colors, applying spacing, creating components, or ensuring brand consistency.
Framework-agnostic guide for implementing stable, semantic selectors in any web application. Solves the dynamic class name problem caused by CSS-in-JS, CSS Modules, and build tools. Includes patterns for React, Angular, Vue, Svelte, Next.js, Astro, and more. Future-proofed for Computer User Agents (CUA) and AI-powered automation tools. Provides TypeScript patterns, naming taxonomies, and enterprise-scale conventions.
Teach and apply Effect-TS practices (effect, @effect/schema, @effect/platform) for architecture, typed errors, Layers, dependency injection, resource safety, testing, and migration from async/await/Promise. Use when a user asks how to use Effect, requests best practices, wants to refactor to Effect, or needs mapping from platform modules to Node/Bun/Browser APIs.
Practical guidelines for implementing React 19 components with TypeScript
Provides custom React hooks patterns and best practices specific to Bellog. Triggers when creating custom hooks or implementing interactive features.
Configure routing with lazy loading, implement route guards, set up preloading strategies, optimize change detection, analyze bundles, and implement performance optimizations.
Comprehensive code review guidelines for Next.js 15 App Router projects
Practical guidelines for implementing Next.js 15 applications with App Router
Apply consistent theming with Tailwind CSS 4, including dark mode support and design tokens. Use when styling components, fixing dark mode issues, or adjusting visual design.
Build, convert, and optimize React/Vue/Svelte UI components with TypeScript, advanced patterns, animations, and accessibility
Design and implement React Server Components with Next.js 15 App Router. Master server-first architecture, streaming SSR, Server Actions, React 19 patterns, and modern data fetching for 2025+ development.
