eslint-plugin-unicorn provides a comprehensive suite of ESLint rules focused on improving code quality and consistency by enforcing best practices and modern JavaScript language features. It encourages using more readable and maintainable code, often replacing verbose or less performant patterns with cleaner alternatives. This plugin helps developers write more idiomatic and efficient JavaScript, leading to a higher quality overall codebase. It's perfect for teams aiming to improve code style and adoption of modern JS conventions.