Worked on the SpecterOps/BloodHound repository to improve API stability and correctness by aligning the OpenAPI specification with the current codebase. Focused on refining the API definition, the work involved renaming a query parameter, clarifying data types for node identifiers, and removing deprecated parameters to ensure consistency between the specification and implementation. This update, implemented using yaml and leveraging expertise in API design and OpenAPI Specification, aimed to reduce integration friction for client applications and minimize runtime mismatches. The changes enhanced maintainability across the repository, providing a clearer contract for consumers and supporting more reliable client-server interactions moving forward.