node-express

A set of coding conventions for Node.js web backends built with Express or Fastify. It covers project folders, naming, centralized error handling, tests, and database mocking.

In plain words
What is it for?
Use it when building or reviewing Express or Fastify services, including route handlers, middleware, database models, and Jest plus Supertest tests.
Why use it?
It gives a consistent structure for backend code and clarifies where request handling, business logic, middleware, models, and shared types belong. It also documents common ways to handle errors and test routes.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/ggombee/code-forge/node-express
Any agent
npx skills add ggombee/code-forge --skill node-express
Clone the repo
git clone --depth 1 https://github.com/ggombee/code-forge

Made for: Claude Code, Codex.

Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 352 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00017 $0.00352
Opus 5 $0.00009 $0.00176
Sonnet 5 $0.00003 $0.00070
Haiku 4.5 $0.00002 $0.00035

Measured yesterday against content hash 5a2b2ef1f8c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

node-express scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

modules/frameworks/node-express/SKILL.md · 41 lines

What it actually says

Node.js Express/Fastify 컨벤션

프로젝트 구조

src/
├── app.ts           # 앱 초기화, 미들웨어 등록
├── server.ts        # 서버 진입점 (app.ts와 분리)
├── routes/          # 라우터 모음
├── controllers/     # 요청/응답 처리
├── services/        # 비즈니스 로직
├── middleware/      # 커스텀 미들웨어
├── models/          # DB 모델 (Prisma schema 또는 ORM)
└── types/           # 공유 TypeScript 타입

네이밍 규칙

  • 파일: camelCase.ts 또는 kebab-case.ts (프로젝트 일관성 유지)
  • 클래스: PascalCase
  • 함수/변수: camelCase
  • 환경변수: UPPER_SNAKE_CASE
  • 라우트 경로: kebab-case (예: /user-profiles)

에러 처리

  • 중앙 집중식 에러 핸들러 미들웨어 (middleware/errorHandler.ts)
  • AppError 커스텀 클래스로 상태 코드 + 메시지 캡슐화
  • async 라우터는 express-async-errors 또는 try-catch wrapper 사용

테스트

  • Jest + supertest 조합
  • 서비스 레이어 단위 테스트 + 라우터 통합 테스트
  • DB mock: jest.mock 또는 테스트 전용 DB 인스턴스
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 41 lines · 17 tokens per session scan A 5a2b2ef1f8c4

Subscribe to this mod's changes

node-express is a skill published in the GitHub repository ggombee/code-forge (13 stars, last pushed 2mo ago), licensed MIT. It adds 17 tokens to every session and 352 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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