The package manager for AI coding agents.

React + TypeScript Best Practices

Modern React 19 patterns with TypeScript strict mode, Server Components, and performance optimization.

Next.js 15 App Router Patterns

Best practices for Next.js App Router with RSC, server actions, and data fetching.

Tailwind CSS 4 Patterns

Tailwind CSS 4 utility-first patterns, responsive design, and dark mode.

Web Accessibility (WCAG 2.1 AA)

WCAG 2.1 AA compliance with semantic HTML, ARIA, keyboard navigation, and screen readers.

Remix + React Router v7 Patterns

Full-stack web development with Remix and React Router v7 loaders, actions, and nested routing.

shadcn/ui + Radix UI Component Patterns

Build accessible component libraries with shadcn/ui, Radix primitives, and Tailwind CSS.

Node.js + Express Best Practices

Production-ready Node.js with Express, error handling, middleware, and security.

Python + FastAPI Best Practices

FastAPI with async patterns, Pydantic v2, SQLAlchemy 2.0, and proper project structure.

Go Idioms & Best Practices

Idiomatic Go with error handling, interfaces, testing, and concurrency patterns.

All Skills

Showing 192 skills

React + TypeScript Best Practices

Modern React 19 patterns with TypeScript strict mode, Server Components, and performance optimization.

Next.js 15 App Router Patterns

Best practices for Next.js App Router with RSC, server actions, and data fetching.

Vue 3 Composition API

Vue 3 with Composition API, script setup, and TypeScript best practices.

Svelte 5 Runes & SvelteKit

Svelte 5 runes system with SvelteKit routing, TypeScript, and Tailwind CSS.

Tailwind CSS 4 Patterns

Tailwind CSS 4 utility-first patterns, responsive design, and dark mode.

Astro Islands Architecture

Astro 6 with Islands architecture, content collections, and React/Vue/Svelte islands.

Web Accessibility (WCAG 2.1 AA)

WCAG 2.1 AA compliance with semantic HTML, ARIA, keyboard navigation, and screen readers.

Core Web Vitals Optimization

Optimize LCP, INP, and CLS for better performance and search rankings.

Semantic HTML & Modern CSS

Clean semantic HTML5 with modern CSS features for accessible, maintainable web pages.

React State Management

Zustand, Jotai, Redux Toolkit, and React Context patterns for scalable state.

Modern Angular Patterns

Angular 18+ with signals, standalone components, and modern patterns.

REST API Design Best Practices

RESTful API design with proper status codes, pagination, versioning, and error handling.

Remix + React Router v7 Patterns

Full-stack web development with Remix and React Router v7 loaders, actions, and nested routing.

Nuxt 3 Full-Stack Vue Framework

Nuxt 3 with auto-imports, server routes, hybrid rendering, and Vue 3 Composition API.

SolidJS Fine-Grained Reactivity

SolidJS reactive primitives, JSX without virtual DOM, and performance-first patterns.

Qwik Resumable Framework

Qwik resumability patterns for instant-loading applications with zero hydration.

shadcn/ui + Radix UI Component Patterns

Build accessible component libraries with shadcn/ui, Radix primitives, and Tailwind CSS.

Framer Motion Animation Patterns

Production-ready animations with Framer Motion for React including gestures, layout, and scroll.

Three.js 3D & WebGL

Three.js for 3D rendering, scene management, shaders, and React Three Fiber integration.

PWA with Service Workers

Progressive Web App patterns with service workers, caching strategies, and offline support.

Web Workers for Parallel Processing

Web Workers, SharedArrayBuffer, and Comlink for multi-threaded JavaScript.

WebSocket Real-Time Patterns

WebSocket connections for real-time features with reconnection, heartbeats, and state sync.

GraphQL Client with Apollo/urql

GraphQL client patterns with Apollo Client, urql, and type-safe query generation.

tRPC End-to-End Type Safety

tRPC for fully type-safe APIs between TypeScript client and server with zero codegen.

Monorepo with Turborepo/Nx

Monorepo architecture with Turborepo or Nx for task orchestration, caching, and shared packages.

Vite Build Tool Configuration

Vite configuration for development, production builds, plugins, and optimization.

ESLint + Prettier Code Quality

ESLint flat config with Prettier, TypeScript rules, and automated code quality enforcement.

Storybook Component Development

Storybook 8 for isolated component development, visual testing, and documentation.

CSS-in-JS with Styled Components

CSS-in-JS patterns with Styled Components, Emotion, and zero-runtime alternatives.

i18n / Internationalization Patterns

Internationalization with react-intl, next-intl, i18next, and ICU message format.

Node.js + Express Best Practices

Production-ready Node.js with Express, error handling, middleware, and security.

Python + FastAPI Best Practices

FastAPI with async patterns, Pydantic v2, SQLAlchemy 2.0, and proper project structure.

Go Idioms & Best Practices

Idiomatic Go with error handling, interfaces, testing, and concurrency patterns.

Rust Safety & Best Practices

Idiomatic Rust with ownership, error handling, traits, and performance patterns.

Laravel 12 Best Practices

Laravel with Eloquent, validation, queues, events, and testing patterns.

Django Best Practices

Django with class-based views, DRF, testing, and production patterns.

Ruby on Rails 8 Patterns

Rails 8 with Hotwire, Turbo, Solid Queue, and modern Rails conventions.

Spring Boot 3 + Java 21 Patterns

Spring Boot 3 with Java 21 records, virtual threads, Spring Security, and JPA best practices.

.NET 8 + C# Modern Patterns

.NET 8 with minimal APIs, EF Core, source generators, and production patterns.

Elixir + Phoenix LiveView

Elixir with Phoenix LiveView, Ecto, OTP patterns, and real-time features.

NestJS Modular Architecture

NestJS with modular design, dependency injection, guards, interceptors, and TypeORM.

Fastify High-Performance Node.js

Fastify with schema-based validation, plugin architecture, and low-overhead patterns.

Supabase BaaS Best Practices

Supabase with Row Level Security, Edge Functions, real-time subscriptions, and storage patterns.

Firebase / Firestore Patterns

Firebase with Firestore data modeling, Security Rules, Cloud Functions, and offline support.

Stripe Payment Integration

Stripe with Checkout, subscriptions, webhooks, and payment security patterns.

Authentication & Authorization Patterns

OAuth 2.0, JWT, session-based auth, RBAC, and secure authentication architecture.

Microservices Architecture Patterns

Microservices with service discovery, API gateways, resilience patterns, and data management.

Event-Driven & CQRS Patterns

Event-driven architecture with CQRS, event sourcing, and domain event patterns.

Message Queues (RabbitMQ, Redis)

Message queue patterns with RabbitMQ, Redis Streams, dead letter queues, and reliability.

Caching with Redis & CDN

Multi-layer caching with Redis, CDN, cache invalidation, and performance patterns.

React Native + Expo Best Practices

React Native with Expo managed workflow, TypeScript, navigation, and performance.

Flutter + Dart Best Practices

Flutter with clean architecture, Riverpod, and performance optimization.

SwiftUI iOS Development

SwiftUI with MVVM, async/await, SwiftData, and Apple HIG compliance.

Kotlin Android Development

Kotlin with Jetpack Compose, coroutines, Hilt, and Material Design 3.

Capacitor Hybrid Mobile Apps

Build native iOS and Android apps from web projects using Capacitor with plugins, native bridges, and app store deployment.

Ionic Cross-Platform Framework

Ionic Framework with Angular, React, or Vue for building cross-platform mobile apps with native-feeling UI components.

NativeWind / Tailwind for React Native

Style React Native apps with Tailwind CSS utility classes using NativeWind, including dark mode, responsive design, and platform-specific styling.

App Store & Play Store Submission Guide

Complete guide for submitting apps to Apple App Store and Google Play Store, covering screenshots, metadata, review guidelines, and common rejection reasons.

Mobile Testing Strategies

Testing strategies for mobile apps including unit testing, integration testing, E2E with Detox and Maestro, and device farm testing.

Mobile App Performance Optimization

Optimize mobile app performance with profiling, rendering optimization, memory management, and startup time reduction techniques.

Docker Best Practices

Docker with multi-stage builds, security hardening, and production-ready patterns.

GitHub Actions CI/CD

GitHub Actions with security, caching, matrix builds, and deployment patterns.

Terraform Infrastructure as Code

Terraform with modules, state management, testing, and multi-environment patterns.

Kubernetes Best Practices

Kubernetes with Helm, security contexts, resource management, and observability.

Cloudflare Workers Best Practices

Cloudflare Workers with KV, R2, D1, Durable Objects, and edge computing patterns.

AWS Lambda & Serverless Patterns

AWS Lambda with API Gateway, DynamoDB, SQS, and serverless architecture patterns for production workloads.

Nginx Reverse Proxy & Configuration

Nginx configuration for reverse proxy, load balancing, SSL termination, caching, and security hardening.

Monitoring & Observability Stack

Production monitoring with Prometheus, Grafana, OpenTelemetry, and alerting best practices.

Ansible Infrastructure Automation

Ansible for server configuration management, application deployment, and infrastructure automation with roles and playbooks.

Linux Sysadmin Essentials

Essential Linux system administration skills including process management, networking, storage, security, and troubleshooting.

Google Cloud Platform Patterns

Google Cloud Platform patterns with Cloud Run, Cloud Functions, Cloud Storage, BigQuery, and Pub/Sub for production workloads.

CI/CD Pipeline Design Patterns

Design robust CI/CD pipelines with build optimization, testing strategies, deployment patterns, and rollback mechanisms.

Test-Driven Development (TDD)

TDD workflow with Red-Green-Refactor cycle, test design, and practical patterns.

Playwright E2E Testing

Playwright for end-to-end testing with page objects, fixtures, and CI integration.

Jest + React Testing Library

Jest with React Testing Library for component testing, mocking, and coverage.

API Testing Patterns

API testing strategies with contract testing, integration tests, and load testing.

Vitest Modern Test Framework

Vitest for fast, modern testing with native ESM support, TypeScript, Vite integration, and Jest-compatible API.

Cypress E2E Testing Patterns

Cypress for end-to-end testing with component testing, network stubbing, custom commands, and CI integration.

Testing Pyramid & Strategies

Testing pyramid, testing strategies, and practical guidance on what to test, when, and how much across different application layers.

Accessibility Testing Automation

Automated accessibility testing with axe-core, Lighthouse, screen readers, and WCAG compliance checking.

Performance & Load Testing with k6

Performance testing with k6 for load testing, stress testing, spike testing, and soak testing with threshold-based pass/fail criteria.

Consumer-Driven Contract Testing

Contract testing with Pact for microservices, ensuring API compatibility between consumers and providers without integration tests.

PostgreSQL Query Optimization

PostgreSQL with indexing, query planning, connection pooling, and RLS security.

Prisma ORM Best Practices

Prisma with TypeScript, query optimization, migrations, and testing patterns.

MongoDB Best Practices

MongoDB with schema design, indexing, aggregation, and performance patterns.

Drizzle ORM TypeScript-First Patterns

Drizzle ORM with type-safe queries, schema declarations, migrations, and relational queries.

SQLite for Edge & Embedded

SQLite for edge computing, embedded apps, Turso, Cloudflare D1, and local-first patterns.

Redis Caching & Data Structures

Redis for caching, pub/sub, rate limiting, sessions, and advanced data structure patterns.

Supabase PostgreSQL & RLS

Supabase database with Row Level Security, realtime subscriptions, edge functions, and auth integration.

DynamoDB Single-Table Design

DynamoDB with single-table design, GSIs, access patterns, and cost optimization.

Database Migration Best Practices

Safe database migration strategies for zero-downtime deployments, rollbacks, and large-scale schema changes.

Database Design & Normalization

Relational database design with normalization forms, ER modeling, and denormalization trade-offs.

LLM API Integration

Best practices for integrating LLM APIs with error handling, streaming, and cost management.

RAG Implementation Patterns

Retrieval-Augmented Generation with chunking, embeddings, and hybrid search.

AI Agent Development

Building AI agents with tool use, planning, memory, and safety patterns.

Claude API & Anthropic SDK

Claude API integration with Messages API, streaming, tool use, vision, and extended thinking.

OpenAI API Best Practices

OpenAI API with chat completions, function calling, embeddings, and fine-tuning patterns.

LangChain & LangGraph Orchestration

LangChain and LangGraph for building AI chains, agents, and multi-step workflows.

Vector Database Patterns

Vector databases with Pinecone, Qdrant, pgvector, and Chroma for similarity search and AI applications.

AI Safety & Responsible AI

AI safety patterns including content filtering, bias detection, guardrails, and responsible deployment.

MCP Server Development

Model Context Protocol server development with tool definitions, resource management, and transport patterns.

Prompt Engineering Techniques

Prompt engineering with chain-of-thought, few-shot, structured output, and evaluation patterns.

OWASP Top 10 Prevention

Prevent the OWASP Top 10 web application vulnerabilities with concrete coding patterns.

Secure API Design

API security with authentication, authorization, rate limiting, and input validation.

Dependency Security & Supply Chain

Secure dependency management, vulnerability scanning, and supply chain attack prevention.

JWT Token Security Patterns

JWT security with signing algorithms, token lifecycle, refresh rotation, and common vulnerability prevention.

CORS Configuration & Security

Cross-Origin Resource Sharing configuration with secure defaults, preflight handling, and common pitfalls.

Content Security Policy Headers

CSP configuration for XSS prevention, inline script control, and reporting.

Secrets Management

Secrets management with HashiCorp Vault, AWS SSM, environment variables, and rotation patterns.

Penetration Testing Checklist

Web application penetration testing methodology, common attack vectors, and remediation patterns.

Zero Trust Security Model

Zero trust architecture with identity verification, micro-segmentation, and least-privilege access.

Rate Limiting Implementation

Rate limiting patterns with sliding windows, token buckets, distributed limiting, and response handling.

Code Review Checklist

Comprehensive code review checklist covering correctness, security, performance, and style.

Git Workflow & Conventions

Git workflow with conventional commits, branching strategy, and PR best practices.

Refactoring Patterns

Safe refactoring with incremental changes, test coverage, and common patterns.

Error Handling Patterns

Error handling strategies with typed errors, recovery patterns, and user communication.

Logging & Observability

Structured logging, distributed tracing, metrics, and alerting best practices.

Technical Debt Management

Strategies for identifying, tracking, prioritizing, and systematically reducing technical debt.

Code Documentation Best Practices

Writing effective code documentation including inline comments, API docs, READMEs, and architecture guides.

Performance Profiling & Optimization

Systematic performance profiling, bottleneck identification, and optimization techniques.

Systematic Debugging Strategies

Structured approaches to debugging including bisection, hypothesis testing, and root cause analysis.

Architecture Decision Records (ADR)

Documenting architecture decisions with ADRs for team alignment and historical context.

TypeScript Strict Mode

TypeScript strict mode with advanced types, discriminated unions, and Zod validation.

Python Type Hints & Mypy

Python type hints with Pydantic, Protocol, and mypy strict mode.

Rust Ownership & Lifetimes

Rust ownership model, borrowing rules, lifetime annotations, and smart pointers.

Go Error Handling Patterns

Idiomatic Go error handling with wrapping, custom types, and sentinel errors.

Java 21+ Modern Patterns

Modern Java patterns including records, sealed classes, pattern matching, virtual threads, and structured concurrency.

C++20/23 Modern Patterns

Modern C++ patterns with concepts, ranges, coroutines, modules, and smart memory management.

PHP 8.3 Modern Patterns

Modern PHP patterns with typed properties, enums, fibers, readonly classes, and static analysis.

Swift 5.10 Language Patterns

Swift patterns including value types, protocol-oriented design, concurrency, and Result builders.

Kotlin Idiomatic Patterns

Kotlin idiomatic patterns with coroutines, null safety, sealed classes, and extension functions.

Advanced SQL Query Patterns

Advanced SQL patterns including window functions, CTEs, indexing strategies, and query optimization.

Financial Analysis & Excel Modeling

Financial modeling, forecasting, and Excel formulas for analysts and finance professionals.

Accounting & Bookkeeping

Double-entry accounting, journal entries, reconciliation, and GAAP/IFRS compliance.

Investment & Valuation Analysis

DCF valuation, comparable analysis, portfolio theory, and investment decision frameworks.

Business Strategy & Planning

Business plans, competitive analysis, market sizing, and strategic frameworks.

Cryptocurrency & DeFi Analysis

Blockchain analytics, DeFi protocol evaluation, token economics, and on-chain data interpretation.

Personal Finance Management

Budgeting, savings strategies, debt payoff plans, retirement planning, and wealth building.

Tax Planning & Compliance

Tax optimization strategies, deduction maximization, entity structuring, and compliance frameworks.

SaaS Metrics & Financial Modeling

SaaS-specific KPIs, cohort analysis, unit economics, and financial projections for subscription businesses.

Startup Fundraising Guide

Fundraising strategy, pitch decks, term sheets, valuation, and investor relations for startups.

Financial Reporting & Dashboards

KPI dashboards, management reporting, board decks, and financial data visualization best practices.

Technical Writing & Documentation

Clear technical documentation, API docs, README files, and developer guides.

Copywriting & Conversion

High-converting copy for landing pages, emails, ads, and sales pages using proven frameworks.

Blog & Content Creation

SEO-optimized blog posts, content strategy, and editorial best practices.

Academic & Research Writing

Research papers, thesis writing, literature reviews, citations, and academic publishing conventions.

Legal Writing Patterns

Contract drafting, legal memoranda, plain language legal documents, and compliance writing.

UX Writing & Microcopy

Interface text, error messages, onboarding flows, button labels, and conversational UI patterns.

Professional Email Writing

Business emails, cold outreach, follow-ups, negotiation emails, and internal communications.

Resume & CV Writing

ATS-optimized resumes, cover letters, LinkedIn profiles, and career narrative crafting.

API Documentation Writing

REST API docs, OpenAPI specs, SDK guides, authentication flows, and developer experience writing.

Grant & Proposal Writing

Grant applications, RFP responses, project proposals, and funding request narratives.

SEO & Search Optimization

On-page SEO, technical SEO, keyword strategy, and search ranking optimization.

Social Media Marketing

Social media strategy, content calendars, engagement, and platform-specific best practices.

Email Marketing & Automation

Email campaigns, automation sequences, deliverability, and conversion optimization.

PPC & Google Ads Optimization

Google Ads campaign structure, bidding strategies, ad copy, Quality Score, and ROAS optimization.

Content Marketing Strategy

Content strategy, distribution, repurposing, content operations, and measuring content ROI.

Influencer Marketing Patterns

Influencer identification, outreach, campaign management, contracts, and ROI measurement.

GA4 Analytics & Reporting

Google Analytics 4 setup, event tracking, custom reports, attribution, and data-driven decisions.

Conversion Rate Optimization

A/B testing, landing page optimization, funnel analysis, and systematic CRO frameworks.

Growth Hacking Strategies

Viral loops, referral programs, product-led growth, activation optimization, and growth experimentation.

Brand Strategy & Positioning

Brand positioning, messaging frameworks, visual identity, brand architecture, and competitive differentiation.

SQL for Data Analysis

SQL queries for data analysis, reporting, aggregation, and business intelligence.

Python Data Science & Pandas

Data analysis with Python, Pandas, NumPy, and visualization with Matplotlib/Seaborn.

Dashboard & Reporting Design

Data dashboards, KPI tracking, visualization best practices, and executive reporting.

R for Statistical Analysis

Statistical computing with R, tidyverse, ggplot2, and reproducible data analysis workflows.

Power BI Dashboard Development

Build interactive dashboards with Power BI, DAX formulas, data modeling, and report design.

Advanced Google Sheets Formulas

Power-user Google Sheets techniques with QUERY, ARRAYFORMULA, IMPORTRANGE, and Apps Script.

ETL Pipeline Design Patterns

Design reliable ETL and ELT pipelines for data warehousing, transformation, and orchestration.

A/B Testing & Statistical Analysis

Design, run, and analyze A/B tests with statistical rigor, sample size calculation, and significance testing.

Data Visualization Best Practices

Create clear, honest, and impactful data visualizations with proper chart selection and design.

Jupyter Notebook Best Practices

Write clean, reproducible, and collaborative Jupyter notebooks for data analysis and research.

UI/UX Design Principles

User interface and experience design with layout, typography, color theory, and usability.

Design Systems & Component Libraries

Building and maintaining design systems with tokens, components, and documentation.

Figma Design Workflow

Figma best practices for components, auto layout, variables, and developer handoff.

Logo Design Principles

Create memorable, versatile, and timeless logos with proper construction and usage guidelines.

Brand Identity Design

Build cohesive brand identities with strategy, visual language, voice, and application guidelines.

Motion Design & Animation

Create purposeful UI animations, micro-interactions, and motion systems for digital products.

Responsive Design Patterns

Build fluid, adaptive layouts that work across all screen sizes with modern CSS techniques.

Accessible Design Principles

Design inclusive, WCAG-compliant interfaces that work for users with diverse abilities.

Color Theory for Digital Design

Apply color theory principles to create harmonious, meaningful, and effective digital color palettes.

Typography & Type Pairing

Master typography fundamentals, font selection, type pairing, and typographic hierarchy for digital products.

Project Management

Agile, Scrum, Kanban, sprint planning, and project execution best practices.

Automation & Workflow Optimization

Automate repetitive tasks with scripting, no-code tools, and workflow design patterns.

Personal Knowledge Management

Note-taking systems, second brain, Zettelkasten, and knowledge organization strategies.

Meeting Facilitation

Run effective meetings with clear agendas, facilitation techniques, and actionable outcomes.

Decision-Making Frameworks

Structured frameworks for making better decisions: DACI, RICE, Eisenhower matrix, and more.

Time Management Strategies

Pomodoro, time blocking, deep work, and energy management for peak productivity.

Remote Work Best Practices

Effective remote collaboration, async communication, and work-life balance strategies.

Career Development Planning

Career growth strategies, skill development, networking, and promotion readiness.

Agile & Scrum Methodology

Scrum framework with roles, ceremonies, artifacts, and practical implementation tips.