Create Zod Validation Schemas

Create comprehensive Zod validation schemas for [APPLICATION_NAME] with the following specifications:

Requirements

• Application name: [APPLICATION_NAME]
• Entities to validate: [ENTITY_1], [ENTITY_2], [ENTITY_3]
• Form validation needs: [FORM_1], [FORM_2]
• API endpoints to validate: [ENDPOINT_1], [ENDPOINT_2], [ENDPOINT_3]
• Environment variables: [ENV_VAR_1], [ENV_VAR_2], [ENV_VAR_3]
• Custom validation rules: [RULE_1], [RULE_2]
• Error message customization: [YES/NO]
• Transformation requirements: [STRING_TO_NUMBER/TRIM/LOWERCASE/etc.]

Deliverables

Generate complete Zod validation code with:

Entity schemas for each [ENTITY]:

• z.object() definition with all fields
• Field types (string, number, boolean, date, etc.)
• Validation constraints (min, max, email, url, regex)
• Optional vs required fields
• TypeScript type inference with z.infer<>
• Custom error messages for each field

Form validation schemas for [FORMS]:

• Complete form field definitions
• Custom validation messages
• Default values where appropriate
• Nested object validation
• Array validation with min/max items
• Conditional field validation with .refine()
• Cross-field validation rules

API endpoint validation for [ENDPOINTS]:

• Request body schema
• Query parameter schema with coercion
• Path parameter schema
• Integration with Express/Fastify/Next.js handlers
• safeParse() usage for error handling
• Error response formatting with flatten()

Environment variable validation:

• z.object() schema for all [ENV_VARS]
• Type coercion for numbers and booleans
• Default values for optional variables
• URL, email, and custom format validation
• Runtime environment validation
• Type-safe environment object export

Complex validation patterns:

• Nested object schemas
• Array schemas with complex items
• Union types with z.union() or z.discriminatedUnion()
• Intersection types with z.intersection()
• Recursive schemas if needed
• Custom refinements for [CUSTOM_RULES]

Data transformations:

• String trimming and normalization
• Type coercion (string to number, etc.)
• Date parsing and formatting
• Conditional transformations with .transform()

Error handling utilities:

• Function to format Zod errors for API responses
• Function to convert errors for form libraries
• User-friendly error message mapping

Output production-ready, type-safe validation schemas ready to integrate.