Dylan authored comprehensive API documentation for the Tinker SDK in the thinking-machines-lab/tinker-cookbook repository, focusing on new exception classes and management methods for checkpoints and training runs. Using Python and leveraging skills in API design and technical documentation, Dylan ensured the reference materials accurately reflected recent API changes by regenerating the SDK’s reference docs. This work improved the clarity and usability of the SDK for other developers, streamlining onboarding and ongoing maintenance. While the scope was limited to documentation and no bugs were fixed during this period, the contribution addressed developer experience and maintainability through precise, up-to-date technical resources.