validating-forms

Implement React form validation with Zod schemas and React Hook Form.

Updated Aug 27, 2026
One-click install
npx skills add https://github.com/alexejluft/brudi --skill validating-forms-alexejluft
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: validating-forms
Source: https://github.com/alexejluft/brudi/tree/main/skills/validating-forms
Command: npx skills add https://github.com/alexejluft/brudi --skill validating-forms-alexejluft

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill addresses the critical need for secure and user-friendly form validation in web applications, preventing data errors and enhancing user experience.

Core Features & Use Cases

  • Dual Validation: Enforces validation on both the client-side (for immediate user feedback) and server-side (for security and data integrity).
  • Single Source of Truth: Utilizes Zod schemas as the definitive source for validation rules, ensuring consistency between frontend and backend.
  • Improved UX: Implements onBlur validation and automatic focus on the first error field to guide users.
  • React 19 Integration: Supports the new useActionState hook for seamless server actions.
  • File Upload Security: Validates file types and sizes to prevent security risks.
  • Use Case: Securely collecting user sign-ups, processing order details, or handling sensitive data submissions where both user experience and data integrity are paramount.

Quick Start

Use the validating-forms skill to create a React form with Zod validation and server-side checks.

Frequently Asked Questions about validating-forms

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

FAQPage Schema
How do I handle form validation in React using Zod and React Hook Form?▼

To validate React forms with Zod, define a Zod schema as the single source of truth and wire it to React Hook Form. This enforces client and server validation, using onBlur mode and ARIA attributes to guide users and maintain data integrity.

Why does my React form validation fail on the server even when it passes on the client?▼

Client-side validation passes but server-side validation fails when schema rules are not shared. Using a Zod schema as the definitive source for validation rules ensures consistency between frontend and backend, preventing data errors and enhancing security.

How do I make React forms accessible when displaying validation errors?▼

Making React forms accessible requires wiring ARIA attributes to your inputs and managing focus on the first error field. Implementing this alongside onBlur validation guides users effectively through correcting data submission errors.

Can I use React 19 useActionState with Zod schema validation for server actions?▼

Yes, Zod schema validation integrates with React 19's useActionState hook for seamless server actions. This combination securely processes sensitive data submissions by enforcing validation rules on both the client and server simultaneously.

How do I validate file uploads in React forms for type and size security?▼

Validating file uploads in React forms for type and size involves checking the uploaded files against your Zod schema rules. This prevents security risks by ensuring only permitted file types and sizes are processed during data submission.