Worked on enhancing the test API specification within the snyk/go-application-framework repository, focusing on policy-driven testing improvements. Delivered a feature that introduced the AppliedPolicy concept, supporting both SeverityChange and Ignore actions, and expanded the API schema with detailed structures for IgnoreDetails, PolicyAttributes, and SeverityChangeDetails. The update also refined test execution states and mock server responses to ensure alignment with the new API definitions, enabling more accurate and maintainable policy testing. Utilized Go and YAML for specification management and API client development, resulting in a single, cohesive change that improved testing fidelity and streamlined integration with continuous integration workflows.