ESLint Custom Rule Builder

Scaffolds and tests custom ESLint rules using the RuleTester API and AST Explorer patterns. Generates rule documentation with fixable autofix implementations.

Installation

Use the upstream install or setup path that matches your environment:

• npm init @eslint/config@latest
• npx eslint yourfile.js

Requirements and caveats from upstream:

• To use ESLint, you must have Node.js (^20.19.0, ^22.13.0, or >=24) installed and built with SSL support. (If you are using an official Node.js distribution, SSL is always built in.)
• node-linker=hoisted

• Which Node.js versions does ESLint support?

Basic usage or getting-started notes:

• Installation and Usage

• If you use ESLint's TypeScript type definitions, TypeScript 5.3 or later is required.

• npm Installation

• Source: https://github.com/eslint/eslint

• Extracted from upstream docs: https://raw.githubusercontent.com/eslint/eslint/HEAD/README.md

Source

• Agent Skill Exchange