Linting Neostandard Eslint9

What it does

This skill automates code style checks and fixes for JavaScript and TypeScript projects using Neostandard and ESLint9. It provides a baseline configuration based on Neostandard, allowing you to enforce consistent coding standards. The skill facilitates migration from older configurations (like .eslintrc*) or the Standard linting toolset to modern ESLint v9 with its flat config system (eslint.config.js or eslint.config.mjs).

When to use it

• Setting up linting in a new JavaScript or TypeScript project.
• Migrating an existing project from Standard or legacy .eslintrc* configurations to Neostandard and ESLint v9.
• Ensuring consistent code style across local development and CI environments.
• Creating a baseline ESLint v9 configuration using the flat config system.
• Implementing reproducible linting with pinned major versions of dependencies.

Key capabilities

• Provides a Neostandard-based ESLint v9 flat configuration.
• Supports migration from Standard or legacy .eslintrc* configurations.
• Facilitates setting up linting in CI environments.
• Offers guidance on editor integration and pre-commit hooks.
• Includes documentation for configuring, extending, and migrating to Neostandard and ESLint v9.

Example prompts

• "Set up linting with Neostandard and ESLint 9."
• "Migrate my project from Standard to Neostandard."
• "Create an eslint.config.js file using Neostandard as a baseline."
• “Configure ESLint v9 for this JavaScript project.”

Tips & gotchas

• Requires installation of eslint@9 and neostandard dependencies (npm install --save-dev eslint@9 neostandard).
• The skill emphasizes keeping the configuration minimal and explicit.
• For CI environments, perform linting runs without auto-fixing to treat failures as quality gates.