Agent skill · Security

express

Express.js middleware patterns, routing, error handling, security, and production best practices.

a5c-aigithub.com/a5c-aiGitHub ↗
claude-codecodexcan modify filesMIT
Install
npx skills add a5c-ai/babysitter --skill express --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 8 KB
Bundled scripts: none
Allowed tools: ReadWriteEditBashGlobGrep
Path: library/specializations/web-development/skills/express/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 1,642
Language: JavaScript

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Express Skill Expert assistance for building Node.js APIs with Express.js. ## Capabilities - Configure Express applications with middleware - Implement RESTful routing patterns - Handle errors with custom middleware - Apply security best practices - Set up validation and parsing - Configure production deployments ## Usage Invoke this skill when you need to: - Build REST APIs with Express - Implement middleware pipelines - Handle errors gracefully - Add authentication/authorization - Set up API documentation ## Inputs | Parameter | Type | Required | Description | |-----------|------|----------|-------------| | routePath | string | Yes | Route path prefix | | methods | array | Yes | HTTP methods | | middleware | array | No | Middleware to apply | | validation | boolean | No | Add validation | ## Patterns ### Application Setup ```typescript // src/app.ts import express, { Express, Request, Response, NextFunction } from 'express'; import cors from 'cors'; import helmet from 'helmet'; import compression from 'compression'; import morgan from 'morgan'; import { rateLimit } from 'express-rate-limit'; import { errorHandler, notFoundHandler } from './middleware/error'; import { usersRoute

What's inside
Steps it walks through
  1. Capabilities
  2. Usage
  3. Inputs
  4. Patterns
  5. Application Setup
  6. Router with Controllers
  7. Middleware Patterns
  8. Async Handler Wrapper
  9. Best Practices
  10. Target Processes
Ships with 1 file
  • README.md
More from babysitter
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About this skill
What does the express skill do?

Express.js middleware patterns, routing, error handling, security, and production best practices.

How do I install it?

Run `npx skills add a5c-ai/babysitter --skill express --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

Keep going