A specialized CLI tool that converts plain English descriptions into production-ready Express middleware code with built-in error handling.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install middleware-gen
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install middleware-gen using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Middleware Generator?
The Middleware Generator is a developer-focused utility designed to eliminate the complexity of writing Express middleware from scratch. Handling edge cases, asynchronous errors, and intricate TypeScript patterns can be time-consuming; this tool solves that by allowing developers to simply describe their needs in natural language. As an essential part of the Openclaw Skills library, it ensures that your middleware follows industry best practices while drastically reducing development time.
Whether you need to implement security layers, logging, or validation, the Middleware Generator provides a seamless bridge between conceptual requirements and executable code. By leveraging AI to understand context, it produces clean, maintainable, and highly functional code snippets that can be directly integrated into any Node.js backend architecture.
Middleware Generator Use Cases
- Implementing rate limiting to protect APIs from brute force attacks.
- Creating JWT authentication layers with role-based access control (RBAC).
- Developing custom request logging middleware that tracks response times.
- Validating API keys or custom headers before processing requests.
- Rapidly prototyping complex API security features without manual boilerplate.
How Middleware Generator Works
- The developer executes the tool via a CLI command, providing a description of the desired middleware functionality.
- The utility parses the English description to identify the logic, such as authentication, logging, or rate limiting.
- It generates an Express-compatible function, automatically including necessary async/await wrappers and error handling logic.
- If specified, the tool applies TypeScript types to ensure type safety within the generated output.
- The resulting code can be output to the console or saved directly to a file for immediate use in the project.
Middleware Generator Setup
The Middleware Generator requires Node.js 18 or higher. Since it is a part of the Openclaw Skills ecosystem, it is designed to run via npx without a permanent installation. You must have an OpenAI API key configured in your environment.
# Set your API key
export OPENAI_API_KEY='your_api_key_here'
# Run the generator
npx ai-middleware "your middleware description"
Middleware Generator Data Schema & Taxonomy
The Middleware Generator creates standalone code files and does not persist data in a database. It organizes its output based on standard Express and TypeScript structures.
| Component | Format | Description |
|---|---|---|
| Middleware Logic | JS / TS | The core Express function containing the middleware logic. |
| Error Handling | Standard Express | Built-in next(error) patterns for robust API stability. |
| TypeScript Types | Interface / Types | Optional type definitions generated when the -t flag is used. |
| Output File | .js / .ts | User-defined file output using the -o flag for project integration. |
Middleware Generator Advanced Features
- Full TypeScript support for developers building type-safe Express applications.
- Automatic error handling integration to prevent middleware from crashing the server.
- Flexible output options allowing direct file writing or console logging for quick copy-pasting.
- Support for complex logic like role-based access control and custom header validation.
- Lightweight execution as part of the broader Openclaw Skills toolkit, requiring no heavy local dependencies.
SKILL.md
Loading
Related Openclaw Skills
Meta Tags - SEO Tag Generator
A powerful CLI utility for generating search-optimized HTML meta tags, Open Graph data, and structured JSON-LD schema.
Meta Tags Generator
An AI-powered tool that scans web pages and generates highly relevant meta tags, Open Graph cards, and Twitter previews.
AI Merge Resolver
An AI-powered CLI tool that intelligently resolves Git merge conflicts by analyzing context from both branches.
Logger Generator (logger-gen)
A CLI utility that instantly generates production-grade structured logging configurations for Node.js frameworks.
Migration Generator
An automated utility for generating timestamped SQL migration files directly from ORM schemas like Prisma and Drizzle.
Mock Gen
A high-speed utility to generate realistic mock data from natural language descriptions, TypeScript types, or existing schemas.
Featured*
