Jest testing patterns, factory functions, mocking strategies, and TDD workflow. Use when writing unit tests,...

Four-phase debugging methodology with root cause analysis. Use when investigating bugs, fixing test failures, or...

Modern React UI patterns for loading states, error handling, and data fetching. Use when building UI components,...

GraphQL queries, mutations, and code generation patterns. Use when creating GraphQL operations, working with Apollo...

Formik form handling with validation patterns. Use when building forms, implementing validation, or handling form submission.

Core component library and design system patterns. Use when building UI, using design tokens, or working with the...

Expert guidance on Swift Concurrency best practices, patterns, and implementation. Use when developers mention: (1)...

Build accessible web applications following WCAG guidelines. Use when implementing ARIA patterns, keyboard...

Deploy and configure applications on Vercel. Use when deploying Next.js apps, configuring serverless functions,...

Build consistent design systems with tokens, components, and theming. Use when creating component libraries,...

Access Jewish calendar data and Shabbat times via Hebcal API. Use when building apps with Shabbat times, Jewish...

Deploy applications on Railway platform. Use when deploying containerized apps, setting up databases, configuring...

Implement secure coding practices following OWASP Top 10. Use when preventing security vulnerabilities, implementing...

Generate images with Google's Nano Banana Pro (Gemini 3 Pro Image). Use when generating AI images via Gemini API,...

Work with MongoDB databases using best practices. Use when designing schemas, writing queries, building aggregation...

Build responsive, mobile-first web applications. Use when implementing responsive layouts, touch interactions,...

Create diagrams and visualizations using Mermaid syntax. Use when generating flowcharts, sequence diagrams, class...

Build LLM applications with LangChain and LangGraph. Use when creating RAG pipelines, agent workflows, chains, or...

Fetch and display GitHub trending repositories and developers. Use when building dashboards showing trending repos,...

Integrate with Figma API for design automation and code generation. Use when extracting design tokens, generating...

Generate images, videos, and audio with fal.ai serverless AI. Use when building AI image generation, video...

Configure GitHub Copilot with custom instructions. Use when setting up .github/copilot-instructions.md, customizing...

Build and deploy on Cloudflare's edge platform. Use when creating Workers, Pages, D1 databases, R2 storage, AI...

Build fast applications with Bun JavaScript runtime. Use when creating Bun projects, using Bun APIs, bundling,...