Frontend

Test-driven development (TDD), unit/integration/UAT testing strategies, test organization, coverage requirements, and GenAI validation patterns. Use when writing tests, validating code, or ensuring quality.

Analyze and reduce bundle size, implement code splitting, optimize dependencies, and improve build performance. Use when bundle is too large, load times are slow, or implementing progressive loading.

Fix generic HTML/CSS designs by applying aesthetic upgrades across the 5 design dimensions (typography, color, motion, spatial composition, backgrounds)

Search local documents, files, notes, and knowledge bases. Index directories, search with BM25/vector/hybrid, get AI answers with citations. Use when user wants to search files, find documents, query notes, look up information in local folders, index a directory, set up document search, build a knowledge base, needs RAG/semantic search, or wants to start a local web UI for their docs.

Create distinctive, production-grade Svelte/TypeScript frontends with exceptional design quality

This skill should be used when the user asks to "add MCP server", "integrate MCP", "configure MCP in plugin", "use .mcp.json", "set up Model Context Protocol", "connect external service", mentions "${CLAUDE_PLUGIN_ROOT} with MCP", or discusses MCP server types (SSE, stdio, HTTP, WebSocket). Provides comprehensive guidance for integrating Model Context Protocol servers into Claude Code plugins for external tool and service integration.

Validate code quality, test coverage, performance, and security. Use when verifying implemented features meet all standards and requirements before marking complete.

This skill should be used when the user asks to "create a plugin", "scaffold a plugin", "understand plugin structure", "organize plugin components", "set up plugin.json", "use ${CLAUDE_PLUGIN_ROOT}", "add commands/agents/skills/hooks", "configure auto-discovery", or needs guidance on plugin directory layout, manifest configuration, component organization, file naming conventions, or Claude Code plugin architecture best practices.

Provides comprehensive code review guidance for React 19, Vue 3, Rust, TypeScript, Java, and Python. Helps catch bugs, improve code quality, and give constructive feedback. Use when: reviewing pull requests, conducting PR reviews, code review, reviewing code changes, establishing review standards, mentoring developers, architecture reviews, security audits, checking code quality, finding bugs, giving feedback on code.

Fix generic frontend designs by applying aesthetic upgrades across the 5 design dimensions

Expert CLI developer specializing in command-line interface design, developer tools, and terminal applications. Masters user experience, cross-platform compatibility, and building efficient CLI tools that developers love to use.

Implement features with code, tests, and documentation. Use when building features from approved designs following TDD and project coding standards.

Expert React specialist mastering React 18+ with modern patterns and ecosystem. Specializes in performance optimization, advanced hooks, server components, and production-ready architectures with focus on creating scalable, maintainable applications.

Expert blockchain developer specializing in smart contract development, DApp architecture, and DeFi protocols. Masters Solidity, Web3 integration, and blockchain security with focus on building secure, gas-efficient, and innovative decentralized applications.

Create distinctive, production-grade React/TypeScript frontends with exceptional design quality

Fix generic Vue component designs by applying aesthetic upgrades across the 5 design dimensions (typography, color, motion, spatial composition, backgrounds)

Optimistic UI patterns for ChainGraph frontend. Use when working on real-time collaboration, port value updates, node position syncing, debouncing, echo detection, or any client-server state synchronization. Covers 3-step echo detection, pending mutations, position interpolation. Triggers: optimistic, echo detection, pending mutation, debounce, throttle, position interpolation, staleness, real-time, collaboration.

Real-time data synchronization patterns for ChainGraph frontend. Use when working on WebSocket subscriptions, event buffers, tRPC subscriptions, flow synchronization, or execution event streaming. Covers subscription lifecycle, event buffering, race condition solutions. Triggers: subscription, sync, real-time, websocket, event buffer, tRPC subscription, flow events, onData, patronum interval.

Research-backed skill creation workflow with automated firecrawl research gathering, multi-tier validation, and comprehensive auditing. Use when "create skills with research automation", "build research-backed skills", "validate skills end-to-end", "automate skill research and creation", needs 9-phase workflow from research through final audit, wants firecrawl-powered research combined with validation, or requires quality-assured skill creation following Anthropic specifications for Claude Code.

Use when debugging TypeScript/JavaScript bugs by tracing call chains, understanding unfamiliar codebases quickly, making architectural decisions, or reviewing code quality. Extract function signatures and JSDoc without full file reads, trace call hierarchies up/down, detect code smells, and follow data flow. Triggers on debugging, understanding codebase, architectural analysis, signature extraction, call tracing.