Developed and released the Azure Fleet API Preview (2026-06-01-preview) for the Azure Fleet service in the azure-rest-api-specs repository, focusing on API specification and configuration management using TypeSpec and Azure technologies. The work addressed TypeSpec validation errors, standardized formatting across specification files, and improved documentation compliance to meet project publishing standards. Updates to spell-check configuration enhanced terminology consistency, including support for Karpenter-related terms. By enabling a reliable preview path for customers, the changes reduced integration risk and accelerated feedback cycles for early adopters, supporting the evolution of the API while aligning with release governance and documentation requirements.