Design e Frontend

Event-driven architecture patterns with event sourcing, CQRS, and message-driven communication. Use when designing distributed systems, microservices communication, or systems requiring eventual consistency and scalability.

Phase 1: Browse 4 catalog sites via Playwright, write CSS-precise observations (oklch values, font-size clamp, grid ratios, border-radius, shadows), declare reference site + 3 elements. Feed specs to Gemini context.

Use when designing internal linking strategy. Covers pillar/cluster architecture, anchor text optimization, link distribution, orphan page detection, click depth, broken link audit.

Use when user requests creative work - creating features, building components, adding functionality, or modifying behavior. Activates BEFORE APEX Analyze phase to refine requirements through structured questioning.

Threat modeling methodologies using STRIDE, attack trees, and risk assessment for proactive security analysis. Use when designing secure systems, conducting security reviews, or identifying potential attack vectors in applications.

TanStack Router - 100% type-safe routing, file-based routes, loaders, search params. Use when implementing routing in React apps (NOT Next.js).

Expert Astro UI framework integrations — @astrojs/react, @astrojs/vue, @astrojs/svelte, @astrojs/solid-js, @astrojs/preact, @astrojs/alpinejs, @astrojs/lit, @qwikdev/astro, @analogjs/astro-angular. Setup, multi-framework config, usage patterns.

AI image generation tool. Use when you need to generate reference images, illustrations, or visual content from text prompts.

SOLID principles for Swift 6 and SwiftUI (iOS 26+). Files < 100 lines, protocols separated, @Observable, actors, Preview-driven development. Features Modular MANDATORY.

Utilize esta skill para decisões estratégicas, análise de negócios, resolução de problemas complexos, pesquisa acadêmica, design de sistemas, ou qualquer questão que se beneficie da desconstrução por Primeiros Princípios e raciocínio multiagente, mesmo que a consulta pareça simples.

Use when planning or implementing an intentional migration from JavaScript, jQuery, HTML/CSS, server-rendered templates, or MPA legacy frontend code to React + TypeScript or Vue 3 + TypeScript while preserving behavior. Do not use for routine legacy bug fixes that stay in the old stack; Chinese triggers include 遗留项目, 技术栈升级, jQuery 迁移.

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup