class-validator

Class-validator decorator-based validation for TypeScript. Standard in NestJS. Use when building APIs with NestJS or needing class-based validation. USE WHEN: user mentions "class-validator", "NestJS validation", "DTO validation", "decorator validation", asks about "NestJS DTOs", "ValidationPipe" DO NOT USE FOR: Zod/Yup projects (use zod/yup skills), non-…

Independent GitHub snapshot · Automated classification · Original documentation governs