eslint-type-tracer

A utility for inferring runtime types of expression nodes within ESLint rules, enabling type-aware linting without a full TypeScript type checker. Version 0.5.2 is the latest stable release with support for Temporal, Math.sumPrecise(), well-known symbols, and improved type definitions. It is published under MIT license and maintained by ota-meshi. Key differentiators: lightweight, no external runtime dependencies, limited to single-file analysis (no cross-module inference), and exports ESM via .mjs extension. Designed for ESLint v8.57+, Node.js >=18. Typical use cases include validating arrays, strings, numbers, and other built-in types inside ESLint rule implementations.