frontend▌

React UI patterns for loading states, error handling, and async data in components. \n \n Three core patterns: show loading indicators only when data is absent, always surface errors to users, and disable buttons during async operations to prevent duplicate submissions \n Includes decision trees and component examples for skeleton vs. spinner selection, error state hierarchy (inline, toast, banner, full screen), and empty state requirements for all collections \n Covers form submission workflows

Interactive node-based graph visualization and workflow editor for React applications. \n \n Provides built-in node types (default, input, output, group) and edge types (bezier, straight, step, smoothstep) with full customization via custom components \n Includes Handle components for connection points, NodeProps and EdgeProps for typed custom nodes and edges, and EdgeLabelRenderer for interactive labels \n Offers programmatic control through useReactFlow hook for viewport management (fitView, z

sentry-react-native-sdk

Learn to THINK, not copy SQL patterns.

Master REST and GraphQL API design principles to build intuitive, scalable, and maintainable APIs that delight developers and stand the test of time.

Build production-ready iOS features by combining ShipSwift recipes -- copy-paste-ready SwiftUI implementations covering animations, charts, UI components, and full-stack modules.

Design AI agent tools with clear schemas, descriptions, and error handling that prevent hallucination and token waste. \n \n Focuses on JSON Schema best practices and description writing that helps LLMs understand tool intent and constraints, not just implementation details \n Covers tool validation, explicit error handling patterns, and recovery strategies that prevent silent failures and agent loops \n Includes guidance on the Model Context Protocol (MCP) standard for tool interoperability acr

$22

A collection of design-related skills for Claude Code.

CSS-first Tailwind v4 configuration using @theme directives, OKLCH colors, and design tokens without config files. \n \n Configure theme entirely in CSS via @theme directives (default, inline, or reference modes) instead of tailwind.config.js \n Use OKLCH color format for perceptually uniform colors with L (lightness), C (chroma), and H (hue) parameters \n Vite plugin setup (@tailwindcss/vite) replaces PostCSS; no postcss.config.js needed \n CSS variable naming conventions for colors, spacing, f