Constrained API Response Generator

Generate API responses that strictly conform to the API contract.

## API Contract
{{api_contract}}

## Request Context
{{request_context}}

## Constraints
- Max response size: {{max_size}}KB
- Response time budget: {{time_budget}}ms

**Generation Instructions:**

1. **Contract Parsing**
   - Required fields and types
   - Optional fields
   - Enum constraints
   - Nested structures

2. **Response Construction**
   - Build response object
   - Validate against schema
   - Apply size constraints
   - Handle nullables

3. **Constraint Enforcement**
   - Size verification
   - Type checking
   - Enum validation
   - Reference integrity

4. **Error Handling**
   - Invalid request response
   - Partial success handling
   - Error codes

**Output:**
```json
// Contract-compliant response
```

**Validation Report:** Compliance status