zod4

Official

Migrate to Zod 4 with confidence

AuthorKastalien-Research
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This skill provides a comprehensive guide to migrating from Zod 3 to Zod 4 and using Zod 4 effectively, ensuring type-safe validation during upgrades and new schema development.

Core Features & Use Cases

  • Migration guidance: Clear steps to migrate schemas from Zod 3 to Zod 4, including API changes and best practices.
  • Idiomatic usage: Examples for new features like z.file, z.templateLiteral, and strict/loose object variants.
  • Real-world scenarios: Applies to codebases upgrading validation layers in TypeScript projects, CI pipelines, and schema-driven APIs.

Quick Start

Install Zod 4: npm install zod@^4.0.0 Import and use: import { z } from "zod"; Run a codemod for migration: npx zod-v3-to-v4

Dependency Matrix

Required Modules

None required

Components

Standard package

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: zod4
Download link: https://github.com/Kastalien-Research/thoughtbox-dot-claude/archive/main.zip#zod4

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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