global-validation skill

---
name: Global Validation
description: Implement comprehensive validation on server and client sides with fail-fast checks, specific error messages, input sanitization, and consistent validation across all entry points. Use this skill when validating user input or form data, implementing server-side validation logic, adding client-side validation for user experience, creating validation schemas or rules, implementing type and format checks, sanitizing input to prevent injection attacks, validating business rules, creating field-specific error messages, implementing allowlist validation patterns, or ensuring consistent validation across web forms, API endpoints, and background jobs. Use when working with validation libraries, form handlers, API request validators, or any code that processes user input.
---

## When to use this skill

- When validating user input or form data
- When implementing server-side validation logic (always required)
- When adding client-side validation for immediate user feedback
- When creating validation schemas or rules (Joi, Yup, Zod, etc.)
- When implementing type, format, range, or required field checks
- When sanitizing input to prevent injection attacks (SQL, XSS, command injection)
- When validating business rules (balance checks, date validation, etc.)
- When creating specific, helpful error messages for validation failures
- When implementing allowlist validation patterns
- When ensuring consistent validation across web forms, API endpoints, and background jobs
- When working with validation middleware or decorators
- When using validation libraries or frameworks
- When implementing fail-fast validation at entry points

# Global Validation

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:
[global validation](../../../agent-os/standards/global/validation.md)