Enforce a high-quality, production-ready standard for changes in this Next.js + Chakra UI frontend repo. Use for UX polish, accessibility, performance, error/loading states, code hygiene, and “ready to merge” checks (lint/format/build).

Runs TypeScript type checking, ESLint, and tests for the frontend.

Create safe, phased refactor plans for complex frontend code.

Implement responsive designs using mobile-first development, fluid layouts, standard breakpoints, and relative units to ensure optimal viewing across all device sizes. Use this skill when creating layouts, implementing breakpoints, styling for different screen sizes, or ensuring mobile compatibility. When working with responsive CSS, media queries, viewport configurations, or mobile-optimized components. When testing across device sizes, implementing touch-friendly interfaces, or optimizing for mobile performance. When working in any frontend file that affects layout, spacing, typography, or visual presentation across different screen sizes.

Secure Solana frontends against phishing, bad prompts, and unsafe signing requests. Use for audits of wallet UX and dApp sites.

Audit frontend codebases for security vulnerabilities and bad practices. Use when performing security reviews, auditing code for XSS/CSRF/DOM vulnerabilities, checking Content Security Policy configurations, validating input handling, reviewing file upload security, or examining Node.js/NPM dependencies. Target frameworks include web platform (vanilla HTML/CSS/JS), React, Astro, Twig templates, Node.js, and Bun. Based on OWASP security guidelines.

DEFAULT foundation component library for all React/Next.js UI needs. Use as the starting point for any project needing buttons, inputs, dialogs, forms, tables, navigation, modals, dropdowns, and other standard UI elements. Built on Radix UI + Tailwind CSS. Check shadcn FIRST before reaching for other libraries.

Generate Vitest + React Testing Library tests for Desktop Ethereal frontend components, hooks, and utilities. Triggers on testing, spec files, coverage, Vitest, RTL, unit tests, integration tests, or write/review test requests.

Verify and test Angular 18 frontend changes using Chrome DevTools MCP. Automatically check console errors, network requests, and visual rendering after implementing tasks or when fixing UI bugs. Use when creating components, debugging visual issues, validating API integration, or ensuring UI requirements are met. File types: .ts, .html, .css, .scss

This skill guides creation of distinctive, emotionally expressive frontend interfaces that balance technical precision with organic imperfection. Build React + TypeScript + Tailwind applications with

Advanced frontend web development expert system that provides comprehensive modern web development services including architecture design, UI/UX implementation, performance optimization, engineering setup, and cross-platform development through expert collaboration and intelligent tool integration.

Use when building Angular applications, creating TypeScript components, implementing reactive forms, managing state, working with RxJS observables, or developing modern web UI with TypeScript.

You are a seasoned frontend web software engineer with deep expertise in modern

Validate YAML frontmatter in documentation against template requirements. Use when creating or editing docs, or when the user asks to check frontmatter.

Expert guidance for using the FrontRange CLI (fr command) to manage YAML front matter in text documents. Use when working with front-mattered files, YAML metadata, blog posts, markdown with front matter, or when the user mentions 'fr' commands. Supports reading/writing front matter keys, JMESPath-based searching, bulk operations via piping, directory recursion, and multiple format output (JSON/YAML/plist/CSV).

Frustration Eradication Skill

Feature-Sliced Design architecture for frontend. Use when creating new features, slices, or understanding the FSD layer structure.

Oh My Brand! theme architecture and project structure. Directory layout, data flow, asset pipeline, and theme.json configuration. Use for understanding project organization.

Guide for committing to Oh My Brand! using Conventional Commits, Husky hooks, and linting. Use this when making commits, pushing to remote, or fixing pre-commit linting failures.

fsharp-shared

fsharp-tests

FTDI (Future Technology Devices International) MPN encoding patterns, USB interface chip decoding, and handler guidance. Use when working with FTDI USB bridge ICs or FTDIHandler.

End-to-end development workflow: Git → GitHub PR → Docker Deploy

Complete Angular migration pipeline that orchestrates all migration skills in sequence. Use when performing end-to-end page migration with analysis, implementation, quality checks, and QA verification.

This skill should be used when debugging full-stack issues that span UI, backend, and database layers. It provides a systematic workflow to detect errors, analyze root causes, apply fixes iteratively, and verify solutions through automated server restarts and browser-based testing. Ideal for scenarios like failing schedulers, import errors, database issues, or API payload problems where issues originate in backend code but manifest in the UI.

**Multi-agent orchestration for comprehensive application improvement**

Master-level fullstack software engineering with deep backend expertise. Use when building production-grade APIs, database architectures, authentication systems, microservices, or any backend-heavy application. Triggers on: (1) API design and implementation, (2) Database schema design and optimization, (3) Authentication/authorization systems, (4) System architecture decisions, (5) Performance optimization, (6) Error handling and logging, (7) Testing strategies, (8) DevOps and deployment, (9) Security hardening.

World-class #1 expert full stack developer specializing in enterprise-grade JavaScript/Node.js, modern frontend architecture, scalable backend systems, and database optimization. Expert in microservices, CI/CD, cloud infrastructure, and performance tuning. Use when building scalable applications, architecting distributed systems, optimizing database performance, or implementing production-ready features.

Complete full-stack development with Next.js 13+, React, Firebase, Tailwind CSS, and payment integration (Stripe, JazzCash, EasyPaisa). Build production-ready e-commerce platforms, SaaS applications, and scalable web applications. Comprehensive coverage of frontend architecture, backend API routes, database design, authentication systems, payment processing, form handling, error management, and optimization. Generate complete project structures, pages, components, API routes, database schemas, security rules, and deployment configurations using TypeScript.

Full-stack development expertise covering backend, frontend, database, DevOps, and testing domains

Security and performance - hardening, optimization, auditing

Generates a complete fullstack application template with Python FastAPI backend and React Vite frontend. Includes OpenAI ChatGPT integration, CORS configuration, comprehensive error handling, and a modern Tailwind CSS + shadcn/ui React UI. Use this skill when the user wants to bootstrap a new fullstack web application project with both API backend and web frontend components ready to go.

Fullstack testing - unit, integration, E2E, coverage

Comprehensive validation methodology for multi-component applications including backend, frontend, database, and infrastructure

Comprehensive guide for implementing Fullstory's User Anonymization API (setIdentity with anonymous:true) for web applications. Teaches proper logout handling, session management, privacy compliance, and user switching scenarios. Includes detailed good/bad examples for logout flows, multi-user applications, and privacy-conscious implementations.

Comprehensive guide for implementing Fullstory's Asynchronous API methods (Async suffix variants) for web applications. Teaches proper Promise handling, await patterns, error handling, and when to use async vs fire-and-forget methods. Includes detailed good/bad examples for initialization waiting, session URL retrieval, and conditional flows to help developers handle Fullstory's asynchronous nature correctly.

Comprehensive guide for implementing Fullstory's Capture Control APIs (shutdown/restart) for web applications. Teaches proper session management, capture pausing, and resource optimization. Includes detailed good/bad examples for performance-sensitive sections, privacy zones, and SPA cleanup to help developers control when Fullstory captures sessions.

Industry-specific guide for implementing Fullstory in e-commerce and retail applications. Covers conversion funnel optimization, product interaction tracking, cart abandonment analysis, checkout flow privacy (PCI compliance), and customer journey mapping. Includes detailed examples for product pages, cart, checkout, and post-purchase experiences.

Comprehensive guide for implementing Fullstory's Element Properties API across Web, Android, and iOS platforms. Teaches proper type handling, schema construction, value formatting, and platform-specific patterns including view/cell reuse. Includes detailed good/bad examples for e-commerce, forms, and dynamic content to help developers add semantic decoration to their apps and capture business-relevant properties on interactive elements.

Comprehensive getting started guide for Fullstory Browser API v2 implementation. Provides the complete initialization flow, API overview, decision framework for which APIs to use, industry-specific guidance, privacy best practices, and framework integration patterns. Links to all core, meta, industry, and framework skills.

Comprehensive guide for implementing Fullstory's Observer/Callback API (observe method) for web applications. Teaches proper event subscription, callback handling, observer cleanup, and reacting to Fullstory lifecycle events. Includes detailed good/bad examples for session URL capture, initialization handling, and integration with analytics platforms.

Comprehensive guide for implementing Fullstory's Element Privacy Controls (fs-exclude, fs-mask, fs-unmask) for web applications. Teaches proper privacy class usage, understanding what data leaves the device, CSS selector rules, and Form Privacy features. Includes detailed good/bad examples for protecting sensitive elements while maintaining session replay utility.

Strategic guide for data privacy in Fullstory implementations. Teaches developers how to decide what data to send, mask, exclude, hash, or replace with joinable keys. Covers regulatory compliance (GDPR, HIPAA, PCI, CCPA), privacy-by-design principles, and balancing analytics value with privacy protection. Acts as a decision framework that references core privacy skills.

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.

Comprehensive guide for implementing Fullstory's User Consent API for web applications. Teaches proper consent flow implementation, selective capture modes, GDPR/CCPA compliance patterns, and cookie consent integration. Includes detailed good/bad examples for consent banners, preference centers, and privacy-conscious recording to help developers implement privacy-compliant session recording.

Use when starting a session and wanting creative engagement, or when user says '/fun' or asks for a persona

Python function design conventions for this codebase. Apply when writing or reviewing functions including signatures, parameters, return types, and async patterns.

Write functional tests that test public interfaces only (HTTP APIs via requests, libraries via exported functions, CLIs via command execution). Never test internal functions directly. Expose observability APIs for internal behavior testing.

Functional programming patterns with immutable data. Use when writing logic or data transformations.

Validates that code actually works through sandbox testing, execution verification, and systematic debugging. Use this skill after code generation or modification to ensure functionality is genuine rather than assumed. The skill creates isolated test environments, executes code with realistic inputs, identifies bugs through systematic analysis, and applies best practices to fix issues without breaking existing functionality. This ensures code delivers its intended behavior reliably.