zod-4

Validate TypeScript data shapes with Zod 4 schemas.

Updated Mar 15, 2026
One-click install
npx skills add https://github.com/sebasmzg/sebas.dot --skill zod-4-sebasmzg
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: zod-4
Source: https://github.com/sebasmzg/sebas.dot/tree/main/.config/opencode/skill/zod-4
Command: npx skills add https://github.com/sebasmzg/sebas.dot --skill zod-4-sebasmzg

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Zod 4 provides a robust, type-safe schema validation layer for JavaScript/TypeScript applications, enabling precise data validation at runtime and strong compile-time guarantees.

Core Features & Use Cases

  • Primitives, object schemas, and nested structures for reliable data shapes
  • Unions, discriminated unions, and refinements with clear error messages
  • Type inference, safe parse, and robust validation workflows for APIs and forms
  • Real-world use: validate API payloads, form inputs, and configuration objects

Quick Start

Install Zod 4 in your TypeScript project and start validating data against defined schemas.

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 inputs in TypeScript at runtime?

You can validate API payloads and form inputs using Zod 4 schemas to enforce data shapes with safe parse workflows and clear error messages. It provides type inference for robust compile-time and runtime validation.

What is the best way to define strict validation schemas for nested objects and arrays?

Defining strict validation schemas for nested objects and arrays is done through Zod 4 primitive and object schemas. This approach ensures reliable data shapes for complex structures in TypeScript applications.

How do discriminated unions and refinements work for data validation?

Discriminated unions and refinements in Zod 4 allow conditional data validation across different object shapes. They provide clear error messages when validation fails, ensuring data integrity for complex types.

Does Zod 4 provide compile-time type safety along with runtime validation?

Yes, Zod 4 provides compile-time type safety through type inference alongside strict runtime validation. This dual approach ensures TypeScript projects maintain precise data shapes across both compilation and execution.

How do I handle error messages clearly when safe parse fails on configuration objects?

When safe parse fails on configuration objects, Zod 4 handles errors by returning detailed validation issues. You can inspect these clear error messages to identify exactly which data shape constraints were violated.