Yagil developed a configurable right-sizing percentile feature for Ocean Clusters in the spotinst/openapi repository, introducing a new API endpoint and updating the OpenAPI specification. This work enabled users to set the percentile used in right-sizing recommendations, supporting more data-driven and cost-efficient capacity planning. Yagil’s approach focused on API-first design, leveraging YAML for OpenAPI spec updates and ensuring thorough documentation of the new endpoint. The implementation addressed the need for predictable autoscaling decisions, aligning with business goals for cost optimization. Over the month, Yagil demonstrated depth in API development and OpenAPI Specification, delivering a focused, well-documented feature enhancement.