zod-4

Create and migrate Zod v4 schemas for TypeScript projects.

1|Updated Jan 23, 2026

Search Tags:#typescript #validation #migration #zod #type-safety #schemas

Ready to run

npx skills add https://github.com/BrunoAlan/agents-skills --skill zod-4-brunoalan

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: zod-4
Source: https://github.com/BrunoAlan/agents-skills/tree/main/skills/zod-4
Command: npx skills add https://github.com/BrunoAlan/agents-skills --skill zod-4-brunoalan

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Zod 4 schema validation patterns address the complexity of validating runtime data in TypeScript projects and facilitate migration from Zod v3 to v4.

Core Features & Use Cases

Create and validate Zod v4 schemas for forms, API payloads, and data adapters.
Migrate existing Zod v3 schemas to v4 with minimal changes and improved validators.
Use top-level validators like z.email(), z.uuid(), and z.url() to enforce data correctness across the stack.

Quick Start

Install dependencies with npm install zod, then define a simple schema and validate sample data to see immediate results.

Frequently Asked Questions about zod-4

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

FAQPage Schema

How do I migrate Zod v3 schemas to v4 in a TypeScript project?▼

Migrating Zod v3 schemas to v4 involves updating your existing validation patterns to use new top-level validators. This process automates the transition with minimal changes, ensuring your forms and API payloads maintain type safety across the stack.

How do I validate API payloads using Zod v4?▼

Validating API payloads with Zod v4 requires defining schemas using top-level validators like z.email(), z.uuid(), and z.object(). This enforces runtime data correctness and ensures your TypeScript backend receives properly structured requests.

What are the new top-level validators in Zod v4?▼

Zod v4 introduces top-level validators like z.email(), z.uuid(), and z.url() to replace previous string-based formats. These validators enforce data correctness directly, simplifying schema definitions for forms and data parsers across your application.

Do I need Zod v4 installed to use zod-4 schema validation?▼

Yes, you need a TypeScript project with Zod v4 installed to use this schema validation automation. Install the dependency with npm install zod to define schemas and validate sample data for immediate runtime type safety results.

Can I use Zod v4 schemas for both frontend forms and backend data parsers?▼

Yes, Zod v4 schemas can be created and validated for frontend forms, backend API payloads, and data adapters. This ensures consistent runtime validation and type safety across your entire TypeScript stack without duplicating validation logic.

What is the best way to enforce type safety for runtime data in TypeScript?▼

Enforcing type safety for runtime data in TypeScript is best achieved by defining Zod v4 schemas for your data structures. This approach validates incoming forms and API payloads at runtime, bridging the gap between static types and actual data.