Worked on enhancing the stability of the espressif/esp-rainmaker repository by addressing a critical pointer and type mismatch issue in the esp_rmaker_report_info function. Applied expertise in C programming and embedded systems to resolve compilation errors by passing the key_name pointer directly to snprintf and json_gen_obj_set_* calls, ensuring the fix preserved existing runtime behavior. This targeted bug fix improved build reliability and maintainability for the firmware integration, reducing debugging time for future development. Demonstrated careful attention to code quality and safe API usage, validating the solution against local builds to confirm no regressions were introduced in the module’s functionality.