The **eslint‑plugin‑washing‑code** package provides a small set of ESLint rules derived from the “Washing your code” book, targeting frontend developers who want stricter, automatically‑fixable style checks such as explicit boolean comparisons, function optional‑chaining, and using `.includes()` instead of chained equality tests. It can be added to any JavaScript/TypeScript project via the recommended configuration or individual rule settings, helping teams enforce the clean‑code recommendations from the book.