zod

Enforce standardized Zod v4 schemas for Esposter projects.

23|3|Updated Jun 28, 2022
One-click install
npx skills add https://github.com/Esposter/Esposter --skill zod-esposter
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: zod
Source: https://github.com/Esposter/Esposter/tree/main/.agents/skills/zod
Command: npx skills add https://github.com/Esposter/Esposter --skill zod-esposter

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This guide standardizes and enforces Esposter's Zod v4 schema conventions to ensure consistent type-safety, boundary validation, and predictable JSON schema generation across services and UI forms.

Core Features & Use Cases

  • Enforces usage of the z namespace (z.string, z.object, etc.) and discourages legacy string-based chaining.
  • Promotes safe string handling with transform().pipe() instead of overwrite, and uses createUniqueArraySchema for arrays to guarantee uniqueness.
  • Provides patterns for boundary data validation, form schemas, and ToData mappings for class types to align runtime data with TypeScript types.
  • Supports co-located schemas with proper typing using satisfies z.ZodType<T> and generic factory patterns for reusable schemas.

Quick Start

Create a basic Zod schema using the z namespace and validate a boundary payload with .parse() to ensure type-safety.

Frequently Asked Questions about zod

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

FAQPage Schema
What is the best way to define Zod v4 schemas for boundary parsing and type safety?

The best way to define Zod v4 schemas for boundary parsing is to use the z namespace directly and enforce data validation with .parse(), ensuring runtime data aligns with TypeScript types for safe boundary parsing.

How do I enforce array uniqueness in Zod schema validation?

To enforce array uniqueness in Zod schema validation, use a dedicated createUniqueArraySchema helper, guaranteeing unique array elements while maintaining standardized type-safety across your schema definitions.

Why should I avoid optional and default combos in Zod schemas?

You should avoid optional and default combos in Zod schemas because they create unpredictable validation behavior; standardizing definitions without these combos ensures predictable JSON schema generation and reliable boundary validation.

How does transform and pipe work for safe string handling in Zod?

Using transform().pipe() for safe string handling in Zod prevents unsafe overwrites by chaining transformations securely, maintaining robust type-safety while modifying and validating boundary data.

Can I co-locate Zod schemas with my form components using generic factory patterns?

Yes, you can co-locate Zod schemas with form components using generic factory patterns and proper typing with satisfies z.ZodType<T>, supporting reusable schemas and aligning form-specific schema maps with UI validation.

Does Zod v4 support predictable JSON schema generation for backend services?

Zod v4 supports predictable JSON schema generation for backend services by enforcing standardized schema conventions; using the z namespace and avoiding legacy chaining ensures consistent schema outputs across services.