eslint-typegen

Generates TypeScript types from ESLint rule JSON schemas automatically, providing auto-completion and type-checking for rule options. Current stable version is 2.3.1, with an active release cadence. Key differentiators: leverages ESLint's flat config to generate types on the fly, uses json-schema-to-typescript-lite under the hood, and is ESM-only from v2.0.0. Eliminates manual type definitions for ESLint plugin options.