How does this skill handle migration from v3?

The skill provides specific patterns for replacing deprecated methods, such as using shape spreading instead of .merge() and updating error handling to use .issues instead of .errors.

Is it suitable for production API validation?

Absolutely. It promotes the use of .safeParse() and strictObject() to ensure that external data is validated securely without crashing your application.

Can this skill help with TypeScript type safety?

Yes, it specializes in using z.infer to automatically generate TypeScript types from your Zod schemas, ensuring total consistency between your validation logic and type system.

What are the biggest changes in Zod v4?

Zod v4 introduces top-level functions for string formats (like z.email()), redesigned function schemas, and mandatory key/value schemas for records, alongside changed error customization syntax.

Zod v4 Schema Expert

Name: Zod v4 Schema Expert
Author: boneskull

byboneskull

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Desarrollo de API

Streamlines TypeScript data validation and schema modeling using the latest Zod v4 patterns and migration strategies.

This skill provides comprehensive architectural guidance for implementing robust data validation with Zod v4, specifically focusing on the critical breaking changes from version 3. It assists developers in creating type-safe schemas, managing complex migrations, and implementing best practices for API response validation and form handling. By leveraging top-level functions and improved type inference patterns, it ensures your codebase remains modern, secure, and fully type-checked while minimizing runtime errors.

Características Principales

01Advanced TypeScript type inference from Zod schema definitions

02Seamless migration guidance for upgrading from Zod v3 to v4

031 GitHub stars

04Implementation of top-level format validators for strings and numbers

05Custom error handling and safe parsing strategies for user input

06Strict object modeling to catch unexpected fields and typos

Casos de Uso

01Defining complex recursive data models for nested JSON structures

02Migrating legacy Zod v3 schemas to modern v4 syntax and patterns

03Building type-safe API request and response validation layers

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add boneskull/claude-plugins zod-v4

For use in Claude.ai and ChatGPT

Download Skill