eslint-plugin-json-files

ESLint plugin and processor for linting JSON files, particularly package.json. Current stable version 5.1.2 requires Node >=20.9 and ESLint >=5. It provides 11 rules covering package.json hygiene: sorting, schema validation, dependency restrictions, engines requirements, and no branch dependencies. Unlike generic JSON linters, it focuses on package.json-specific rules. Supports flat config (eslint.config.js) via processor configuration. Released as needed, maintained by Kelly Selden.