Data Validation Patterns Skill

Purpose

Ensure all external data is validated using Zod schemas before use. Prevents runtime type errors and provides safe fallbacks.

⚠️ CRITICAL: Always Validate External Data

ALL data from external sources MUST be validated:

• API responses (backend, third-party)
• Webhook payloads
• User input (forms, query params)
• URL parameters

Zod Schema Location

All validation schemas live in lib/validation/: