Developed JSON Schema numeric validation keyword support for the mdatagen config generation pipeline within the open-telemetry/opentelemetry-collector repository. This work enabled the generation of configuration data that adheres to minimum, maximum, exclusiveMaximum, and exclusiveMinimum constraints, directly addressing the need for more accurate test data and robust config validation. The implementation was carried out in Go, with a focus on backend development and comprehensive unit testing to ensure correctness. Updates to golden files and targeted test cases validated the new functionality, resulting in improved data fidelity and providing a stronger foundation for downstream pipeline testing and future feature development.