zod

What problem does it solve?

Zod provides rigorous runtime validation for TypeScript data, ensuring inputs conform to defined schemas and preventing unsafe or ill-typed data from leaking into the application.

Core Features & Use Cases

• Comprehensive ruleset covering schema definition, parsing & validation, type inference, error handling, and performance guidelines to standardize validation.
• Practical guidance on common patterns (safeParse vs parse, discriminated unions, partial/update schemas, preprocess, coerce, and refinements) with real-world scenarios.
• Reference-driven workflow improvements, enabling safer data boundaries, better UX through precise error reporting, and scalable type-safe validation across teams.

Quick Start

Review the guidelines and apply the relevant rules to your schemas and parsing code to achieve safer, more maintainable validation.