Vision

A linter for CSS and CSS-like languages that is:

• complete - coverage of all standard CSS syntax
• extensible - multiple points of extension
• configurable - no defaults and options to tailor the linter
• robust - comprehensive test coverage and a wide range of fixtures
• consistent - conventions for behavior, naming and documentation
• performant - tools to test and improve performance

Complete

Provide built-in rules for standard CSS syntax that:

• avoid errors
• enforce conventions

Extensible

Provide multiple points of extensions, including:

• custom syntaxes - use any PostCSS-compatible syntax to support other CSS-like languages and containers
• extendable configs - extend and share configurations
• formatters - format Stylelint result objects
• plugins - build community rules to support methodologies, toolsets, non-standard CSS features, other languages (like SCSS) or very specific use cases

Robust

Provide a robust tool with a comprehensive test suite, including:

• high coverage, currently over 95%
• a wide range of fixtures for rules

Consistent

Provide consistency throughout, including consistent rules.

Performant

Provide a fast tool and the means to test and improve performance, including benchmarking of an individual rule's performance.