菜单
JavaScript/TypeScript backend reference - Node.js 20/22, Deno 2, Bun 1.x, Edge Runtime. Server frameworks, ORMs, queues, observability, and production patterns for 2024-2025. Use when building backend services, selecting server frameworks, or reviewing server-side JS/TS code.
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
Testing strategy, patterns, and coverage optimization for quality assurance. Use this skill whenever the task involves deciding what to test, how to structure tests, what coverage to aim for, when to use mocks vs real dependencies, or how to write tests that actually catch bugs (not just pass). Also use when the user asks about test pyramids, flaky tests, integration vs unit, TDD, or improving an existing test suite.
Production readiness validation — runs all checks before merging or deploying. Use this skill whenever the task involves verifying that code is ready to ship: type checking, linting, tests passing, coverage thresholds, dead code, security issues, or any pre-merge checklist. Also use when the user asks "is this ready?", wants a pre-PR review, or needs to confirm nothing is broken after a refactor.
Swift architecture reference — SwiftUI, UIKit, Combine, async/await, actors, and production best practices for Swift 5.9/6.0 (2024-2025). Use when making architectural decisions, reviewing Swift code, or selecting libraries. Also use when the user mentions iOS development, macOS apps, or Apple platform development.
UI/Frontend architecture reference - React 19, Next.js 15, Vue 3, Svelte 5, Angular 19, CSS modern features, component libraries, state management, and production best practices for 2024-2025. Use when building frontend UIs, selecting frameworks, reviewing component code, or making frontend architecture decisions.
UX design reference - research methods, design systems, accessibility (WCAG 2.2, EAA), UX laws, AI-driven workflows, tools (Figma, Penpot), and production best practices for 2024-2025. Use when making UX decisions, reviewing designs, implementing accessibility, selecting design tools, or applying UX principles.
C# architecture reference - frameworks, design patterns, ASP.NET Core, Entity Framework, Blazor, Unity, and production best practices for C# 12/13 and .NET 8/9 (2024-2025). Use when making architectural decisions, reviewing C# code, or selecting libraries.
| name | jsbackend-patterns |
| description | JavaScript/TypeScript backend reference - Node.js 20/22, Deno 2, Bun 1.x, Edge Runtime. Server frameworks, ORMs, queues, observability, and production patterns for 2024-2025. Use when building backend services, selecting server frameworks, or reviewing server-side JS/TS code. |
| user-invocable | true |
| argument-hint | [frameworks|patterns|architecture|practices|features|all] |
Comprehensive reference for JavaScript/TypeScript backend architectural decisions. Use $ARGUMENTS to focus on a specific area, or browse all sections.
Note: For TypeScript type system features (generics, conditional types, mapped types, utility types), see the ts-patterns skill instead. This skill focuses on backend runtime concerns.
| Runtime | Version | Strengths | Trade-offs |
|---|---|---|---|
| Node.js 22 (LTS) | 22.x | Largest ecosystem, most stable, universal deployment | Slower cold start than Bun, no built-in TS |
| Deno 2 | 2.x | Security-first (permissions), native TS, npm compat, JSR | Smaller ecosystem, some npm packages need adapters |
| Bun 1.x | 1.2+ | Fastest runtime, all-in-one (bundler, test, install), native TS | Younger ecosystem, some Node APIs not yet implemented |
| CF Workers | — | Edge (300+ PoPs), global low latency, D1/KV/R2 | Limited runtime (no Node APIs), max execution time |
| Company | Stack / Result |
|---|---|
| Netflix | Node.js — reduced startup time by 70%, powers API gateway |
| Uber | Node.js — highest throughput services, real-time matching |
| Node.js — moved from Rails, 20x fewer servers | |
| PayPal | Node.js — double requests/sec vs Java, 35% faster response |
| Microsoft | Node.js — VSCode server (code-server), Azure Functions runtime |
| Vercel | Edge Runtime — Next.js middleware, global edge functions |
| Discord | Node.js + Fastify — API gateway serving 200M+ monthly users |
| Shopify | Deno — Remix/Hydrogen storefront engine |
| File | Content |
|---|---|
frameworks.md | Framework comparison tables by domain |
design-patterns.md | Patterns with TypeScript implementations |
architecture.md | Hexagonal, Event-Driven, CQRS, Clean Architecture |
best-practices.md | Error handling, async, logging, production readiness |
language-features.md | Runtime-specific APIs, TC39 proposals, feature comparison |
