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.