Enhance this utils file with smarter response validation:

Current File:
{{base_content}}

Validation Patterns Needed:
{{ validation_patterns }}

Enhance by:
1. Adding endpoint-specific validation rules
2. Creating schema-based response validation
3. Adding business logic validation
4. Implementing response data integrity checks
5. Adding performance threshold validation

Keep existing utility functions but add smarter validation logic.
Output: Complete enhanced Python file content.