Frontend

Expert UI engineer focused on crafting robust, scalable frontend solutions. Builds high-quality React components prioritizing maintainability, user experience, and web standards compliance.

UI/UX design principles, usability heuristics, accessibility standards, and design system patterns for creating user-centered interfaces.

End-to-end feature owner with expertise across the entire stack. Delivers complete solutions from database to UI with focus on seamless integration and optimal user experience.

Interactive slash command creator for Claude Code. Triggers when user mentions creating commands, slash commands, command templates, command arguments, or wants to build a new command workflow.

THE GOLD MINE: Systematic extraction of pain points, feature gaps, switching triggers, and opportunities from ALL review sources (G2, Capterra, TrustRadius, App Store, Play Store, Reddit, Hacker News, Twitter/X, ProductHunt, GitHub Issues, support forums). Goes beyond UI/UX to cover pricing friction, support failures, integration nightmares, and value gaps.

Expert developer experience optimizer specializing in build performance, tooling efficiency, and workflow automation. Masters development environment optimization with focus on reducing friction, accelerating feedback loops, and maximizing developer productivity and satisfaction.

Expert Site Reliability Engineer balancing feature velocity with system stability through SLOs, automation, and operational excellence. Masters reliability engineering, chaos testing, and toil reduction with focus on building resilient, self-healing systems.

Creates browser-executable JavaScript bookmarklets with strict formatting requirements. Use when users mention bookmarklets, browser utilities, dragging code to bookmarks bar, or need JavaScript that runs when clicked in the browser toolbar.

Expert on building decentralized applications on Aptos with frontend integration, wallet connectivity (Petra, Martian, Pontem), TypeScript SDK, transaction submission, and wallet adapter patterns. Triggers on keywords wallet connect, petra, martian, pontem, typescript sdk, aptos sdk, dapp, frontend integration, wallet adapter, transaction, sign

Interactive hook creator for Claude Code. Triggers when user mentions creating hooks, PreToolUse, PostToolUse, hook validation, hook configuration, settings.json hooks, or wants to automate tool execution workflows.

Expert Angular architect mastering Angular 15+ with enterprise patterns. Specializes in RxJS, NgRx state management, micro-frontend architecture, and performance optimization with focus on building scalable enterprise applications.

Guide for working with Scope, a developer environment management tool that automates environment checks, detects known errors, and provides automated fixes. Use when creating Scope configurations (ScopeKnownError, ScopeDoctorGroup, ScopeReportLocation), debugging environment issues, or writing rules for error detection and remediation.

Create OpenCode plugins using @opencode-ai/plugin SDK. Use when user wants to BUILD a plugin in .opencode/plugin/ or ~/.config/opencode/plugin/ - for custom tools, event hooks, LLM parameter control, auth providers, or tool execution interception. DO NOT use when modifying OpenCode source code (packages/plugin, packages/opencode, etc.) or working on OC internals - those are core development, not plugin creation.

Production-grade frontend development with Next.js 16 App Router, TypeScript 5.9+ strict mode, Tailwind CSS v4, shadcn/ui, React 19.2 Server Components, state management (Zustand/Recoil), performance optimization (Turbopack stable, ISR/SSR/SSG), and accessibility best practices. Includes TanStack Query for server-state, Vitest for testing, and modern React patterns.

Create and configure Claude Code agents with YAML frontmatter, tool selection, model specification, and naming conventions. Reference for building specialized AI subagents that handle complex, multi-step tasks.

Guidance for asking clarifying questions when user requests are ambiguous, have multiple valid approaches, or require critical decisions. Use when implementation choices exist that could significantly affect outcomes.

Production resilience patterns with circuit breakers, retry strategies, bulkheads, timeouts, graceful degradation, health checks, and chaos engineering for fault-tolerant distributed systems.

Expert LLM architect specializing in large language model architecture, deployment, and optimization. Masters LLM system design, fine-tuning strategies, and production serving with focus on building scalable, efficient, and safe LLM applications.

Configure CLAUDE.md project memory files for persistent context, coding standards, architecture decisions, and team conventions. Reference for the 4-tier memory hierarchy and quick-add commands.

Expert Spring Boot engineer mastering Spring Boot 3+ with cloud-native patterns. Specializes in microservices, reactive programming, Spring Cloud integration, and enterprise solutions with focus on building scalable, production-ready applications.