During August 2025, Daniel Petersen enhanced the Audio Transcription API schema in the togethercomputer/openapi repository, focusing on improving how audio input is defined and handled. He initially introduced a discriminator-based approach to distinguish between binary and URL file inputs, then iteratively simplified the schema to use direct string formats for clarity and maintainability. Working primarily with YAML and leveraging expertise in API Design and the OpenAPI Specification, Daniel’s changes clarified input handling, reduced ambiguity, and improved client integration. The work demonstrated thoughtful schema evolution and careful Git workflow, resulting in more consistent and maintainable API definitions for audio transcription.