eslint-utils

Utility functions and classes for developing ESLint custom rules, stable version 3.0.0, released occasionally with major version bumps. Provides static evaluation on AST nodes, reference tracking for modules/globals, and helper functions like getStaticValue(), ReferenceTracker, and PatternMatcher. Differentiators: comprehensive AST utility for ESLint plugin authors, well-documented, and actively maintained by a seasoned contributor. Current version drops support for older Node.js and adds exports field.