Frontend

Provides formatting guidelines for prose. This skill's guidance is automatically applied when writing multi-line comments, commit messages, markdown, or other prose.

Frontend patterns for Next.js App Router, Clerk auth, shadcn/Radix UI, and PostHog analytics. Use when building UI components, creating pages, implementing auth flows, or adding analytics events. Ensures consistent UX patterns and accessibility standards.

Go coding standards following idiomatic Go patterns, error handling, concurrency best practices, and modern Go tooling. Use for Go projects requiring clean, efficient, production-ready code with comprehensive testing.

Validates test suite quality through mutation testing. Generates intelligent code mutations, runs tests to verify they catch the changes, and identifies gaps in test coverage. Use when evaluating test effectiveness, validating newly written tests, or improving test quality for mission-critical code.

React frontend standards covering hooks (useState, useEffect, useContext, custom hooks), state management (Context API, Redux, Zustand), performance optimization (memoization, lazy loading, code splitting), testing with React Testing Library, and accessibility (WCAG 2.1, ARIA) for modern SPAs

Composition API vs Options API

前端自定义 GraphQL API 接口. 当需要在 Vue 3 前端调用后端自定义接口（非标准 CRUD）时使用此技能

Create production-ready KRO ResourceGraphDefinitions using Pulumi TypeScript. Use when users need to define custom Kubernetes APIs, compose resources with KRO, integrate AWS ACK resources, or build platform abstractions using Pulumi infrastructure as code.

Guidance for using the TiDB Cloud Serverless Driver (Beta) in Node.js, serverless, and edge environments. Use when connecting to TiDB Cloud Starter/Essential over HTTP with @tidbcloud/serverless, or when integrating with Prisma/Kysely/Drizzle serverless adapters in Vercel/Cloudflare/Netlify/Deno/Bun.

Zero-trust architecture operates on the principle: "Never trust, always verify." Unlike traditional perimeter-based security, zero-trust assumes breach and verifies every request regardless of origin.

JavaScript/ES6+ coding standards following Airbnb guidelines, modern patterns, React best practices, and comprehensive Jest testing. Use for JavaScript projects requiring clean, maintainable, production-ready code with modern tooling.

This skill should be used when working with applesauce-core library for Nostr client development, including event stores, queries, observables, and client utilities. Provides comprehensive knowledge of applesauce patterns for building reactive Nostr applications.

Master Rust's ownership system, type safety, and zero-cost abstractions for building safe, concurrent, and performant systems. Covers borrowing, lifetimes, traits, error handling, async/await, and testing patterns.

Activate when creating comprehensive documentation including README files, API docs, user guides, and developer guides

Auto-activates during requirements analysis to evaluate technical stack compatibility, recommend appropriate technologies, and assess performance implications.

Create distinctive, production-grade Vue 3/TypeScript frontends with exceptional design quality

Fix generic React component designs by applying aesthetic upgrades across the 5 design dimensions (typography, color, motion, spatial composition, backgrounds)

Generate Python code to solve AppWorld agent tasks using playbook bullet guidance. Use when the AppWorld executor needs executable Python code for tasks involving Spotify, Venmo, Gmail, Calendar, Contacts, or other AppWorld APIs.

XYFlow integration patterns for ChainGraph visual flow editor. Use when working on node rendering, edge rendering, drag-and-drop, selection handling, anchors, handles, or any XYFlow-related UI code. Covers custom nodes/edges, performance optimization, handle positioning. Triggers: xyflow, reactflow, node rendering, edge rendering, handle, anchor, drag drop, selection, viewport, canvas, flow editor UI.

Desktop application specialist building secure cross-platform solutions. Develops Electron apps with native OS integration, focusing on security, performance, and seamless user experience.