zod

Define TypeScript schemas and validate runtime data with Zod.

1|1|Updated Feb 10, 2026
One-click install
npx skills add https://github.com/TheGreatAxios/agent-skills --skill zod-thegreataxios
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: zod
Source: https://github.com/TheGreatAxios/agent-skills/tree/main/zod
Command: npx skills add https://github.com/TheGreatAxios/agent-skills --skill zod-thegreataxios

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) and assets (resource) components.

What problem does it solve?

This Skill provides robust runtime validation for your data structures, ensuring type safety and preventing unexpected errors in your applications.

Core Features & Use Cases

  • Schema Definition: Define clear, declarative schemas for any data shape.
  • Runtime Validation: Validate incoming data against your schemas, catching errors early.
  • Type Inference: Generate TypeScript types directly from your schemas for end-to-end safety.
  • Use Case: Validate API request bodies, environment variables, or configuration files to ensure they conform to expected formats before processing.

Quick Start

Use the zod skill to create a schema for a user object with name and email fields.

Frequently Asked Questions about zod

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

FAQPage Schema
How do I validate API request bodies with TypeScript at runtime?

Validate API request bodies by defining declarative schemas and checking incoming data against them to catch errors early before processing. This ensures runtime data integrity and generates TypeScript types directly from your schemas.

What is runtime data validation and when do I need it for TypeScript?

Runtime data validation checks incoming data against defined schemas to ensure type safety and prevent unexpected application errors. You need it when validating API requests, environment variables, or configuration files to confirm they match expected formats before use.

Can I generate TypeScript types directly from my data validation schemas?

Yes, type inference generates TypeScript types directly from your declarative schemas, providing end-to-end safety. This means your statically checked types automatically reflect the runtime validation rules you define.

Do I need Zod v4 to use advanced features like codecs for schema validation?

Yes, Zod v4 is required for advanced features like codecs and improved performance. You need this version to access enhanced capabilities for transforming inputs and creating type-safe API boundaries.

What is the best way to validate environment variables in a TypeScript application?

The best way to validate environment variables is using a TypeScript-first schema declaration library to ensure they conform to expected formats before processing. This approach prevents unexpected errors by catching invalid configurations early.

How do I transform and validate incoming data using TypeScript schemas?

Transform and validate incoming data by defining a declarative schema for your data shape, then passing the input through the schema to check integrity and apply transformations. This creates type-safe API boundaries and ensures runtime validity.