Schema Validator Enhancement Prompt

Context Recontextualization

You are working on the pipeline_ex system, an Elixir-based pipeline generator that currently has basic JSON Schema validation but needs enhancement to support DSPy integration and advanced pipeline workflows.

Current System Architecture

• Existing validator: lib/pipeline/validation/schema_validator.ex - Comprehensive JSON Schema validation with standard types and constraints
• Configuration system: lib/pipeline/config.ex and lib/pipeline/enhanced_config.ex - YAML-based configuration with hard-coded validation
• Result management: lib/pipeline/result_manager.ex - Basic JSON serialization with manual key conversion
• Step execution: lib/pipeline/executor.ex - Hard-coded step type dispatch system

Current Limitations

1. No YAML schema support - Only validates JSON structures
2. No type preservation - Loses original data types during validation
3. No schema composition - Cannot extend or merge schemas
4. No conditional validation - No support for if/then/else logic
5. Limited metadata support - No annotation or documentation fields

DSPy Integration Requirements

• Signature schema support - Must validate DSPy input/output field definitions
• Structured output validation - Strict validation of AI model outputs
• Type preservation - Maintain data types across serialization boundaries
• Schema composition - Combine base schemas with extensions
• Conditional validation - Support dynamic validation rules

Task

Enhance the existing schema validation system to support DSPy integration requirements while maintaining backward compatibility.

Required Enhancements

1. Enhanced Schema Validator (lib/pipeline/enhanced/schema_validator.ex)

   • Add DSPy signature validation support
   • Implement type preservation during validation
   • Add conditional validation (if/then/else)
   • Support schema composition (allOf, anyOf, oneOf)
   • Add metadata and annotation support

2. Schema Composer (lib/pipeline/enhanced/schema_composer.ex)

   • Implement schema merging and extension
   • Handle schema conflicts and overrides
   • Support schema inheritance patterns
   • Add schema optimization for performance

3. Type Preservation System (lib/pipeline/enhanced/type_preserver.ex)

   • Extract and maintain type metadata
   • Support type coercion where appropriate
   • Handle complex nested structures
   • Integrate with existing validation flow

Implementation Requirements

• Maintain backward compatibility with existing schema_validator.ex
• Follow existing code patterns from current validator implementation
• Support all current JSON Schema features plus enhancements
• Integrate with existing configuration system without breaking changes
• Add comprehensive error handling with detailed path information
• Include thorough documentation and examples

DSPy Schema Format Support

The enhanced validator must support DSPy signature schemas like:

signature:
  input_fields:
    - name: code
      type: string
      description: "Source code to analyze"
    - name: context
      type: object
      schema:
        type: object
        properties:
          language: {type: string}
          complexity: {type: string, enum: [low, medium, high]}
  output_fields:
    - name: analysis
      type: object
      schema:
        type: object
        properties:
          issues: {type: array, items: {type: string}}
          score: {type: number, minimum: 0, maximum: 100}

Code Style Requirements

• Follow existing Elixir conventions from the codebase
• Use pattern matching and with statements for error handling
• Include comprehensive docstrings and type specs
• Add detailed logging for debugging and monitoring
• Structure code with clear separation of concerns

Testing Requirements

• Create comprehensive test cases for new functionality
• Maintain all existing test coverage
• Add DSPy-specific test scenarios
• Include edge case handling tests
• Add performance benchmarks for large schemas

Implement this enhancement as a complete, production-ready solution that integrates seamlessly with the existing pipeline_ex architecture.