Frontend

Use proactively when you need to implement features or fix bugs using strict Test-Driven Development (TDD) methodology. This agent should be activated for any coding task that requires writing new functionality, refactoring existing code, or ensuring comprehensive test coverage, but should not be used for any design-related tasks. The agent excels at breaking down complex requirements into testable increments and maintaining high code quality through disciplined TDD cycles. Use this agent proactively or if the user mentions 'TDD', 'tdd' or 'Test Driven Development'.

UI/UX 설계서를 기반으로 기본 HTML과 JavaScript를 사용하여 동작하는 프로토타입을 개발합니다. 개발 경험이 없는 사용자도 쉽게 사용할 수 있도록 설계되었습니다.

Use when completing tasks, implementing major features, or before merging to verify work meets requirements - dispatches superpowers:code-reviewer subagent to review implementation against plan or requirements before proceeding

Use when analyzing UI screenshots or designs to extract and document design system elements. Analyzes images to identify colors, typography, spacing, components, and patterns, then generates a structured design system with design tokens and CSS snippets. Ideal for reverse-engineering designs, creating style guides, or documenting existing UIs.

Use Gemini to find existing solutions before building from scratch. Leverages Google Search grounding to discover code examples, libraries, and best practices to avoid reinventing the wheel.

Seguridad React. Use when reviewing security, implementing auth, or hardening code.

[CLAUDE CODE ONLY] Leverage Gemini CLI for AI peer review, second opinions on architecture and design decisions, cross-validation of implementations, security analysis, alternative approaches, and holistic codebase analysis. Requires terminal access to execute Gemini CLI commands. Use when making high-stakes decisions, reviewing complex architecture, analyzing large codebases (1M token context window), or when explicitly requested for a second AI perspective. Must be explicitly invoked using skill syntax.

Verify a PR is ready for merge (CI passing, approvals, no conflicts). Use before merging to ensure all requirements met.

Use when developing business strategy (market entry, product launch, geographic expansion, M&A, turnaround), conducting competitive analysis (profiling competitors, assessing competitive threats, Porter's 5 Forces, identifying differentiation), applying strategic frameworks (Good Strategy kernel with diagnosis/guiding policy/coherent actions, SWOT, Blue Ocean Strategy, Playing to Win where-to-play/how-to-win, Value Chain Analysis, BCG Matrix), making strategic decisions under constraints (build vs buy, pricing strategy, market positioning, business model choices), planning strategic initiatives (annual planning, OKRs, roadmaps), evaluating competitive positioning (moats, sustainable advantages, differentiation vs cost leadership), or when user mentions "strategy", "competitive analysis", "Porter's 5 Forces", "SWOT", "market positioning", "strategic planning", "competitive landscape", or "strategic frameworks".

Use when you need to choose the right visualization for your data and question, then create a narrated report that highlights insights and recommends actions. Invoke when analyzing data for patterns (trends, comparisons, distributions, relationships, compositions), building dashboards or reports, presenting metrics to stakeholders, monitoring KPIs, exploring datasets for insights, communicating findings from analysis, or when user mentions "visualize this", "what chart should I use", "create a dashboard", "analyze this data", "show trends", "compare these metrics", "report on", "what does this data tell us", or needs to turn data into actionable insights. Apply to business analytics (revenue, growth, churn, funnel, cohort, segmentation), product metrics (usage, adoption, retention, feature performance, A/B tests), marketing analytics (campaign ROI, attribution, funnel, customer acquisition), financial reporting (P&L, budget, forecast, variance), operational metrics (uptime, performance, capacity, SLA), sales

Guide users writing new pieces, revising drafts, planning structure, improving organization, making messages memorable, or applying expert writing techniques from McPhee, Zinsser, King, Pinker, Clark, Klinkenborg, Lamott, and Heath

Execute evidence-backed GitHub PR reviews with severity tagging, references, and merge-blocking guidance.

Astroプロジェクトの設計・実装・レビューを、HTML中心/Islands/JS最小化の思想で整理する。doc/rdd.md に「技術スタック Astro」があるリポジトリ、またはAstro/Islands/SSG/SSR/パフォーマンス最適化の相談で使う。

Guide for creating new GitHub repos and best practice for existing GitHub repos, applicable to both code and non-code projects

Arquitetura Python - Clean Architecture & Hexagonal. Use when designing architecture or reviewing code structure.

Web scraping and automation platform with pre-built Actors for common tasks

State Management - React Query, Zustand, MMKV. Use when managing application state.

Arquitectura Python - Clean Architecture y Hexagonal. Use when designing architecture or reviewing code structure.

Seguranca React. Use when reviewing security, implementing auth, or hardening code.

Expert prompt optimization system for building production-ready AI features. Use when users request help improving prompts, want to create system prompts, need prompt review/critique, ask for prompt optimization strategies, want to analyze prompt effectiveness, mention prompt engineering best practices, request prompt templates, or need guidance on structuring AI instructions. Also use when users provide prompts and want suggestions for improvement.