Web Components development with Lit including custom elements, reactive properties, shadow DOM, and interoperability.

NextAuth.js (Auth.js) configuration including providers, adapters, session management, callbacks, and JWT handling.

NgRx state management for Angular including store, effects, entity adapter, component store, and selectors.

Nuxt 3 patterns including Nitro server, auto-imports, modules, hybrid rendering, and full-stack development.

Nx workspace configuration, generators, and affected commands.

Pinia state management for Vue 3 including store creation, actions, getters, plugins, and DevTools integration.

Radix UI primitives, composition patterns, accessibility, and customization.

TanStack Query (React Query) patterns for server state management, caching, mutations, optimistic updates, and infinite queries.

Redis caching patterns, pub/sub, sessions, rate limiting, and data structures.

Redux Toolkit patterns including slice creation, async thunks, RTK Query, state normalization, and DevTools integration.

RESTful API design principles, versioning, pagination, HATEOAS, and documentation.

Socket.io rooms, namespaces, adapters, middleware, and real-time patterns.

Server-Sent Events implementation, streaming patterns, and real-time updates.

Styled Components theming, variants, SSR support, and patterns.

Tailwind CSS configuration, custom plugins, design systems, theming, and component patterns for modern web applications.

tRPC end-to-end type safety, procedures, routers, middleware, and React integration.

TypeScript configuration, strict mode, generics, and type utilities.

Vue 3 development with Composition API, reactivity system, component patterns, TypeScript integration, and best practices.

OWASP Top 10, security headers, CSP, XSS prevention, and vulnerability prevention.

WebSocket implementation, connection management, scaling patterns, and real-time features.

YAML configuration for CI/CD, Docker Compose, and Kubernetes.

Diagnose babysitter run health - journal integrity, state cache, effects, locks, sessions, logs, and disk usage

help and documentation for babysitter command usage, processes, skills, agents, and methodologies. use this command to understand how to use babysitter effectively.

Orchestrate via @babysitter. Use this skill when asked to babysit a run, orchestrate a process or whenever it is called explicitly. (babysit, babysitter, orchestrate, orchestrate a run, workflow, etc.)

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Guides the user through selecting a base model and fine-tuning technique based on their use case.

To update Flutter packages, run `./scripts/prebuild.sh` instead of `flutter pub get`.

Anthony Fu's {Opinionated} preferences and best practices for web development

This directory is the core state synchronization layer, responsible for observing the VS Code environment and broadcasting state changes to the backend server (via the `../comms` system).

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Build AI agents with Pydantic AI (Python) and Claude SDK (Node.js)

Schema awareness - read before coding, type generation, prevent column errors

Firebase Firestore, Auth, Storage, real-time listeners, security rules

Node.js backend patterns with Express/Fastify, repositories

gh, vercel, supabase, render CLI and deployment platform setup

Progressive Web Apps - service workers, caching strategies, offline, Workbox

Next.js with Supabase and Drizzle ORM

Express/Hono with Supabase and Drizzle ORM

FastAPI with Supabase and SQLAlchemy/SQLModel

Mobile UI patterns - React Native, iOS/Android, touch targets

Web UI - glassmorphism, Tailwind, dark mode, accessibility

Stripe Checkout, subscriptions, webhooks, customer portal

WooCommerce REST API - products, orders, customers, webhooks

Dynamic multi-repo and monorepo awareness for Claude Code. Analyze workspace topology, track API contracts, and maintain cross-repo context.

You are responsible for creating the “why this works” story.