eslint-plugin-chai-expect

An ESLint plugin that checks for common chai.js expect() mistakes. Current stable version is 4.1.0, released April 2026. Supports ESLint 2.x to 10.x and Node.js 20+. Key differentiators: includes auto-fix for some rules, provides both legacy and flat config presets, and has configurable rules for custom chai extensions. Default recommended rules cover missing assertions, inner comparisons/literals, terminating properties used as functions, and uncalled assertion methods.