Name: Global Validation
Author: TheophilusChinomona

When to use this skill:

When creating API endpoints that accept request bodies
When implementing validation middleware factory for Express/Bun/Hono
When defining Zod schemas for data validation with type inference
When creating forms with React Hook Form and zodResolver
When validating file uploads (MIME type whitelist, size limits with multer)
When writing Firestore security rules (firestore.rules) for database validation
When writing Supabase Row Level Security (RLS) policies
When implementing input sanitization with DOMPurify to prevent XSS
When adding validation to service layer methods (fail-early)
When creating custom Zod refinements (e.g., password complexity) or transforms (e.g., string to Date)
When writing user-friendly validation error messages (not technical jargon)
When validating environment variables with Zod on application startup
When working on any code that accepts user input or external data
When implementing FluentValidation for .NET API validation
When creating complex nested schemas with arrays and optional fields

This Skill provides Claude Code with specific guidance on how to adhere to coding standards as they relate to how it should handle global validation.

Instructions

For details, refer to the information provided in this file:

When creating API endpoints that accept request bodies
When implementing validation middleware factory for Express/Bun/Hono
When defining Zod schemas for data validation with type inference
When creating forms with React Hook Form and zodResolver
When validating file uploads (MIME type whitelist, size limits with multer)
When writing Firestore security rules (firestore.rules) for database validation
When writing Supabase Row Level Security (RLS) policies
When implementing input sanitization with DOMPurify to prevent XSS
When adding validation to service layer methods (fail-early)
When creating custom Zod refinements (e.g., password complexity) or transforms (e.g., string to Date)
When writing user-friendly validation error messages (not technical jargon)
When validating environment variables with Zod on application startup
When working on any code that accepts user input or external data
When implementing FluentValidation for .NET API validation
When creating complex nested schemas with arrays and optional fields

This Skill provides Claude Code with specific guidance on how to adhere to coding standards as they relate to how it should handle global validation.

For details, refer to the information provided in this file: