Worked on reliability improvements for the MySensors integration within the Home Assistant Core repository, focusing on accurate battery sensor data reporting. Addressed a bug where battery sensors were incorrectly attached to gateways by updating discovery constants and ensuring the correct gateway ID was used during sensor discovery. This targeted fix, implemented in Python, enhanced the stability and accuracy of sensor data for end users in home automation and IoT environments. The work involved protocol-specific debugging, careful code review, and collaboration to align documentation and maintain clear commit history, resulting in reduced data misattachments and more reliable sensor reporting for the integration.