# Validation Hooks Implementation Guide

## Decision Branch Validation Strategy

1. Identify all decision points
2. Determine validation rules per branch
3. Wrap branches with validation checks
4. Log and handle failures

Example:
```python
def decision_point(data):
    """Main decision branching point"""

    # Branch 1: Create operation
    if action == 'create':
        if not validate_data(data):
            raise ValueError("Invalid data for creation")
        return create_entity(data)

    # Branch 2: Update operation
    elif action == 'update':
        if not validate_update_permissions(user, entity):
            raise PermissionError("Insufficient permissions")
        return update_entity(data)

    # Branch 3: Delete operation
    elif action == 'delete':
        if not validate_deletion_rules(entity):
            raise RuntimeError("Deletion not allowed")
        return delete_entity(entity_id)
```
