zod-4

Validate runtime data with Zod 4 schemas in TypeScript applications.

Updated Jan 28, 2026
One-click install
npx skills add https://github.com/dtaborda/quiz-experience --skill zod-4-dtaborda
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: zod-4
Source: https://github.com/dtaborda/quiz-experience/tree/main/skills/zod-4
Command: npx skills add https://github.com/dtaborda/quiz-experience --skill zod-4-dtaborda

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Zod 4 provides a robust, type-safe runtime validation framework for TypeScript projects, addressing issues introduced by changes from Zod v3 and ensuring data contracts across frontend and backend boundaries.

Core Features & Use Cases

  • Primitives, objects, arrays, and unions with clear error reporting.
  • Transformations, refinements, and coercions for parsing, validating, and shaping inputs.
  • Schema composition and discriminated unions for complex data structures and API payloads.
  • React Hook Form integration and runtime validation in client-side apps.

Quick Start

Create a simple zod schema for a user object and validate a sample payload.

Frequently Asked Questions about zod-4

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I validate API payloads and form data at runtime in TypeScript?

You can validate API payloads and form data at runtime by defining TypeScript schemas with Zod 4. It applies type-safe validation across frontend and backend boundaries using primitives, objects, and arrays.

Can I use Zod 4 schemas with React Hook Form for client-side validation?

Yes, Zod 4 supports React Hook Form integration for runtime validation in client-side applications. You can use schemas to parse and validate user inputs directly within your form components.

What is the best way to handle complex data structures and API payloads in Zod 4?

The best way to handle complex data structures in Zod 4 is through schema composition and discriminated unions. This allows you to define clear data contracts for intricate API payloads.

How do I transform and refine user inputs during TypeScript runtime validation?

You can transform and refine user inputs during runtime validation using Zod 4's built-in transformations, refinements, and coercions. These features allow you to parse, validate, and shape incoming data.

Does Zod 4 support clear error reporting for invalid data types?

Yes, Zod 4 provides clear error reporting for invalid data types. It validates primitives, objects, arrays, and unions, returning detailed error handling when validation fails.

Why do I need runtime validation for my TypeScript application?

You need runtime validation to ensure data contracts across frontend and backend boundaries in TypeScript applications. Zod 4 addresses type safety issues by validating user inputs and API payloads during execution.