Philipp Geier enhanced the API documentation for the ECMWF/eccodes repository, focusing on clarifying the usage of the codes_get_length and codes_get_bytes functions. Working in C and leveraging his documentation skills, he detailed how to retrieve the lengths of byte arrays and strings, and explained the relationship between these APIs. This targeted update addressed common onboarding challenges and reduced the likelihood of misusing the functions, ultimately supporting smoother integration for developers. While the work was limited in scope to a single feature over one month, it demonstrated careful attention to developer experience and contributed to more efficient implementation and reduced support needs.