esbuild bundling, plugins, and build optimization.

ESLint configuration, custom rules, and plugin development.

Fastify plugins, hooks, validation, serialization, and performance optimization patterns.

GitHub Actions for web app CI/CD, testing, and deployment.

GraphQL schema design, resolvers, directives, subscriptions, and best practices for API development.

Image formats, responsive images, lazy loading, and CDN integration.

Jest configuration, mocking strategies, snapshot testing, and coverage.

JSON Schema validation and API contract design.

JWT implementation, token management, refresh patterns, and security.

Markdown documentation, MDX, and content formatting.

MongoDB schema design, aggregation pipelines, indexing strategies, and performance.

Mock Service Worker API mocking, request handlers, and integration testing.

Deep expertise in Next.js App Router patterns including route groups, parallel routes, intercepting routes, layouts, and loading states.

Next.js specific patterns including App Router, React Server Components, Server Actions, streaming, caching, and Vercel deployment.

OpenAPI/Swagger specification, code generation, documentation, and validation.

Playwright E2E testing, page objects, fixtures, visual regression, accessibility testing, and CI integration patterns.

pnpm workspace patterns and dependency management.

PostgreSQL query optimization, indexing, full-text search, JSONB, and advanced features.

Prettier configuration and integration.

Prisma ORM schema design, migrations, relations, query optimization, and database integration patterns.

Specialized skill for React component development, hooks patterns, state management, context API, performance optimization, and modern React best practices.

Deep expertise in React hooks patterns including custom hooks, composition, optimization, and testing strategies.

React Server Components patterns including streaming, data fetching, client/server component composition, and performance optimization.

React Testing Library patterns, queries, user events, and accessibility testing.

RxJS reactive programming patterns including operators, error handling, multicasting, and Angular integration.

Screen reader compatibility, testing, and optimization.

Technical SEO, structured data, sitemaps, and meta tags.

shadcn/ui component patterns, customization, theming, and integration.

Storybook configuration, stories, addons, interaction testing, and documentation.

JSON-LD schema markup and validation.

Turbopack configuration and Next.js integration.

Turborepo configuration, caching, and pipeline optimization.

Vercel deployment, edge functions, environment configuration, and preview deployments.

Vite configuration, plugins, optimization, HMR, and build customization.

Vitest configuration, mocking, coverage, snapshot testing, and performance.

WCAG 2.1/2.2 compliance, auditing, and remediation.

Core Web Vitals optimization, Lighthouse audits, and performance monitoring.

Webpack configuration, module federation, loaders, plugins, and optimization.

Zod schema validation and type inference.

Zustand state management patterns including store creation, middleware, persistence, slices, and DevTools integration.

Assimilate an external methodology, harness, or specification into babysitter process definitions with skills and agents.

Inspect or change Babysitter model-routing policy by phase.

Launch the babysitter observer dashboard. Installs and runs the real-time observer UI that watches babysitter runs, displaying task progress, journal events, and orchestration state in your browser.

Set up a project for babysitting. Guides you through onboarding a new or existing project — researches the codebase, interviews you about goals and workflows, builds the project profile, installs the best tools, and optionally configures CI/CD integration.

Analysis for a run and its results, process, suggestions for process improvements, process optimizations, fixes, etc. for the next runs.

Set up babysitter for yourself. Guides you through onboarding — installs dependencies, interviews you about your specialties and preferences, builds your user profile, and configures the best tools for your workflow.

Orchestrate a babysitter run. use this command to start babysitting a complex workflow in a non-interactive mode, without any user interaction or breakpoints in the run.

Integrates Amazon Location Service APIs for AWS applications. Use this skill when users want to add maps (interactive MapLibre or static images); geocode addresses to coordinates or reverse geocode coordinates to addresses; calculate routes, travel times, or service areas; find places and businesses through text search, nearby search, or autocomplete suggestions; retrieve detailed place information including hours, contacts, and addresses; monitor geographical boundaries with geofences; or track device locations. Covers authentication, SDK integration, and all Amazon Location Service capabilities.

Orchestrates AWS Amplify Gen 2 workflows for building full-stack apps with React, Next.js, Vue, Angular, React Native, Flutter, Swift, or Android. Use when user wants to BUILD, CREATE, or DEPLOY Amplify projects, add authentication, data models, storage, GraphQL APIs, Lambda functions, or deploy to sandbox/production. Do NOT invoke for conceptual questions, comparisons, or troubleshooting unrelated to active development.

Design, build, deploy, test, and debug serverless applications with AWS Lambda. Triggers on phrases like: Lambda function, event source, serverless application, API Gateway, EventBridge, Step Functions, serverless API, event-driven architecture, Lambda trigger. For deploying non-serverless apps to AWS, use deploy-on-aws plugin instead.