depcheck

name	depcheck
description	Use this skill when the user wants to find unused or missing dependencies in a Node.js project — clean up package.json and keep dependencies lean.

depcheck Plugin

depcheck scans Node.js projects to identify unused dependencies, missing packages, and dev/prod misclassification. Supports multiple file types including JSX, TSX, and ES modules.

Commands

• depcheck _ _ <args> — Passthrough

Usage Examples

• "check for unused dependencies in this project"
• "find missing packages in package.json"
• "list unused devDependencies"
• "ignore specific packages when checking"

Installation

npm install -g depcheck

Key Features

• Unused dependency detection
• Missing dependency identification
• Dev vs production dependency analysis
• JSX, TSX, ES module support
• Custom parser plugins
• JSON output for CI integration
• Monorepo support
• Configurable ignore patterns