Frontend

Cypress component testing guidance for opal-frontend. Use when adding or updating component specs, configuring component test setup, or choosing selectors, mocks, and POM Actions or Flows.

Use when building Cmd+K command palettes in React - covers keyboard navigation with arrow keys, keeping selected items in view with scrollIntoView, filtering with shortcut matching, and preventing infinite re-renders from reference instability

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

Use when testing ideas cheaply before building (pretotyping with fake doors, concierge MVPs, paper prototypes) to validate desirability/feasibility, choosing appropriate prototype fidelity (paper/clickable/coded), running experiments to test assumptions (demand, pricing, workflow), or when user mentions prototype, MVP, fake door test, concierge, Wizard of Oz, landing page test, smoke test, or asks "how can we validate this idea before building?".

Tool usage requirements, failure patterns, consistency checks, and validation methodologies for Claude Code operations

Claude Code-optimized context transfer for development workflows. Preserves code context, git state, running services, and development environment when moving work between sessions. Works seamlessly with peer review skills (Codex/Gemini). Use when transferring development work to a new Claude Code session.

Arquitetura Flutter - Clean Architecture & Melhores Práticas. Use when designing architecture or reviewing code structure.

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

体験品質（動き/触感/視線誘導）を「実装可能な制約」に落とし、アクセシビリティとパフォーマンスを犠牲にせずに表現を実現する。UIの表現・アニメーション・インタラクション設計/実装の相談で使う。

Create AI learning plugins using AgentDBs 9 reinforcement learning algorithms. Train Decision Transformer, Q-Learning, SARSA, and Actor-Critic models. Deploy these plugins to build self-learning agents, implement RL workflows, and optimize agent behavior through experience. Apply offline RL for safe learning from logged data.

Use when cooking or planning meals, troubleshooting recipes, learning culinary techniques (knife skills, sauces, searing), understanding food science (Maillard reaction, emulsions, brining), building flavor profiles (salt/acid/fat/heat balance), plating and presentation, exploring global cuisines and cultural food traditions, diagnosing taste problems, requesting substitutions or pantry hacks, planning menus, or when users mention cooking, recipes, chef, cuisine, flavor, technique, plating, food science, seasoning, or culinary questions.

Write integration and unit tests for this codebase. Generate test files following repo patterns. Use when adding tests, improving coverage, writing test cases, or creating test suites.

Use when testing web applications with visual verification - automates Chrome browser interactions, element selection, and screenshot capture for confirming UI functionality

Implements tasks from .plans/ directories by following implementation guidance, writing code and tests, and updating task status. Use when task file is in implementation/ directory and requires code implementation with comprehensive testing. Launches research agents when stuck.

Seguridad - Mejores Prácticas de React Native. Use when reviewing security, implementing auth, or hardening code.

快速在新 Next.js 项目中集成 LangGraph 后端（localhost:2024），创建极简的 /chat 页面，支持真正的流式 AI 对话。适用于需要快速搭建聊天界面的场景：1) 集成 LangGraph Studio 本地部署的后端，2) 创建支持实时流式响应的聊天页面，3) 使用 LangGraph SDK 进行客户端直接连接，4) 实现优雅的 UI 交互（避免双气泡、流畅的加载动画）。

Tailwind CSSを、utility-first（早すぎる抽象化を避ける）という思想で運用し、UI実装の認知負荷を下げながら一貫性と保守性を保つための設計・レビュー・リファクタ判断を整理する。doc/rdd.md に「技術スタック Tailwind」または「技術スタック Tailwind CSS」がある場合や、CSS設計/命名/デザインシステム/クラス肥大化の相談で使う。

Guide when to use built-in tools (WebFetch, WebSearch) and MCP servers (Parallel Search, Perplexity, Context7) for research. Synthesize findings into narrative for braindump. Use when gathering data, examples, or citations for blog posts.

Arquitectura Flutter - Clean Architecture y Mejores Prácticas. Use when designing architecture or reviewing code structure.

Ferramentas React - Configuracao e Otimizacao. Use when working with tooling.