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.