1. Software Development

Provides a safe array sorting method using toSorted() to avoid mutation, ideal for React state and shared data structures.

Registers 8-bit components in registry.json for shadcn/ui, enabling new component additions to the component library distribution.

Uses Set and Map for O(1) membership lookups in JavaScript, replacing array.includes() for improved performance in repeated checks.

Generates a new migration file for OWID's MySQL database schema changes, enabling version-controlled database evolution.

Creates new AI chat interface components for the ai-elements library, adhering to composable patterns and shadcn/ui/Vercel AI SDK conventions.

Guides users on configuring and using Worktrunk, a CLI tool for managing Git worktrees to automate development tasks.

Provides TypeScript best practices for Vue 3 components, including Volar configuration and template type checking to ensure correct typing patterns.

Assists in building Vue.js components and implementing reactivity patterns using Composition API features.

Manages Node.js dependencies with strict resolution, supporting workspaces, catalogs, patches, and overrides for efficient project setup.

A fast TypeScript library bundler using Rolldown and Oxc for efficient bundling, entry point configuration, and declaration file generation.

Provides a fast and efficient build tool for modern frontend development, featuring instant HMR and optimized production builds.

Configures and extends UnoCSS, a utility-first CSS engine with Tailwind-like syntax, for efficient frontend styling and component development.

Applies VueUse composables to create concise, maintainable Vue.js and Nuxt features, enhancing frontend development efficiency.

Provides Anthony Fu's curated best practices and opinionated preferences for modern web development workflows.

Builds Nuxt applications with SSR, file-based routing, auto-imports, and server routes for Vue.js development.

Fast unit testing framework for JavaScript/TypeScript projects, built on Vite with Jest-compatible API for writing tests, mocking, and coverage configuration.

Provides type-safe state management for Vue.js applications using stores, getters, and actions with official Pinia integration.

Provides expert guidance on system architecture design, including microservices evaluation, scalability planning, and generating architecture diagrams in Mermaid, PlantUML, or ASCII.

Assists in designing REST APIs, optimizing databases, implementing authentication, and building microservices with Node.js/Express/Fastify and PostgreSQL.

Provides comprehensive testing utilities for React/Next.js applications, including unit tests, E2E tests, and coverage analysis with Jest and Playwright.

Reviews and fixes Swift Concurrency issues in Swift 6.2+ code, ensuring compliance and resolving compiler errors.

Refactors SwiftUI views for consistent structure, safe dependency injection, and proper @Observable state management to enhance code quality and maintainability.

Debugs iOS applications by building, running, and interacting with simulators, capturing logs, and diagnosing runtime behavior using XcodeBuildMCP tools.

Automates GitHub issue fixes: inspects issue via gh, implements code changes, runs builds/tests, commits with closing message, and pushes to repository.