nodejs-init-skill

nodejs-init-skill is a skill for Claude Code, Codex from jiushiwon/wg-skills. It costs 219 tokens per session (2,762 once invoked), scanned A, original, Apache-2.0.

A setup assistant for creating Node.js web services with the Express framework. It checks the environment, installs needed tools, and generates a ready-to-run project with authentication, file uploads, API documentation, and database choices.

In plain words
What is it for?
Use it to create an Express service with JWT login, standard API responses, file-upload endpoints, Swagger documentation, and MongoDB, MySQL, or PostgreSQL support. It also provides commands to start or restart the service.
Why use it?
It removes the repetitive work of setting up a backend from an empty folder. It also gives beginners a starting structure without requiring them to configure every part manually.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to create an Express service with JWT login, standard API responses, file-upload endpoints, Swagger documentation, and MongoDB, MySQL, or PostgreSQL support. It also provides commands to start or restart the service.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jiushiwon/wg-skills/nodejs-init-skill
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.

Any agent
npx skills add jiushiwon/wg-skills --skill nodejs-init-skill
Clone the repo
git clone --depth 1 https://github.com/jiushiwon/wg-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nodejs-init-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/jiushiwon/wg-skills/nodejs-init-skill.svg)](https://agentmods.dev/skills/jiushiwon/wg-skills/nodejs-init-skill)
Your own site
<a href="https://agentmods.dev/skills/jiushiwon/wg-skills/nodejs-init-skill"><img src="https://agentmods.dev/badge/skills/jiushiwon/wg-skills/nodejs-init-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 219 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,762 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 126
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
How audits are shown
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 5.1 $0.00219 $0.02762
Opus 5 $0.00110 $0.01381
Sonnet 5 $0.00044 $0.00552
Haiku 4.5 $0.00022 $0.00276

Measured 8d ago against content hash f671739293ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

nodejs-init-skill scanned grade A with 1 finding 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 8d ago.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -F "[email protected]" http://localhost:3000/api/upload
vibeCoding/backend/nodejs/nodejs-init-skill/SKILL.md · 193 lines

How it starts

The opening of the file, as written. The whole thing — 193 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Node.js Init Skill

面向完全不懂编程的小白,一键生成标准化、开箱即用的 Node.js + Express Web 服务骨架。

与其他后端初始化技能的区别

维度 springboot-init-skill fastapi-init-skill 本 skill
目标用户 零基础小白 零基础小白 零基础小白
语言 Java Python JavaScript/TypeScript
框架 Spring Boot FastAPI Express.js
环境安装 自动检测+JDK 自动检测+Python 自动检测+Node.js
启动方式 ./restart.sh ./restart.sh npm start / npm run dev
默认数据库 MySQL MySQL MongoDB(可选 MySQL/PG)
ORM JPA SQLAlchemy Mongoose / Sequelize
鉴权 Spring Security + JWT FastAPI JWT passport.js + JWT
交互次数 3个问题 3个问题 3个问题

不重复造轮子:统一响应信封、错误码、JWT 规范与 backend-convention-skill 对齐,但模板已内置于本 skill(references/api-contract-template.mdreferences/project-guide-template.md),生成项目不依赖 backend-convention-skill 文件;数据库配置引用 database-skill;前端联动规范引用 frontend-request-skill。本 skill 在它们之上增加「小白友好」的完整封装。

依赖

  • backend-convention-skill:响应信封 { code, message, data }、错误码(-1001 校验 / -2000 系统)、JWT Bearer、api-contract、project-guide 规范对齐(模板已内置本 skill)
  • database-skill:MongoDB / MySQL / PostgreSQL 选型规则、连接参数
  • frontend-request-skill:前端请求层规范,确保后端生成的接口契约可直接被前端消费

核心能力清单(11 项)

# 能力 说明
1 环境探测 自动检测 Node.js 版本(>=18)、npm、操作系统类型
2 自动安装 初始化 npm、安装依赖、检查兼容性
3 一键启动/重启 npm start(生产)或 npm run dev(开发):自动安装依赖、启动服务
4 开发模式 npm run dev 使用 nodemon 热重载,日志输出到控制台
5 生产模式 npm start 使用 pm2 后台运行,日志 logs/app.log
6 JWT 鉴权 jsonwebtoken:注册 / 登录 / 刷新令牌 / 当前用户注入
7 文件上传 内置 multer,示例端点 /api/upload 单文件与 /api/uploads 多文件
8 统一响应 中间件自动包装 { code, message, data }
9 全局异常 错误中间件统一处理 BusinessError / 校验错误 / 兜底错误
10 CORS 配置 内置 cors 中间件,可配置允许的域名
11 安全头 内置 helmet 中间件(X-Frame-Options / X-Content-Type-Options 等)

生成流程

第一步:询问用户(只问 3 个问题)

1. 项目名叫什么?(默认 my-express-app)
2. 用哪个数据库?
   A. MongoDB(默认,推荐)
   B. MySQL
   C. PostgreSQL
   D. 暂时不用数据库
3. 使用 TypeScript 还是 JavaScript?(默认 JavaScript)

Read the full file on GitHub · 193 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 8d ago First seen · 193 lines · 219 tokens per session scan A f671739293ad

Subscribe to this mod's changes

nodejs-init-skill is a skill published in the GitHub repository jiushiwon/wg-skills (92 stars, last pushed today), licensed Apache-2.0. It adds 219 tokens to every session and 2,762 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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