During June 2025, Cantelli enhanced the aws/amazon-ssm-agent repository by focusing on observability and reliability improvements in Go. They developed a decoupled serial port logging system, introducing a dedicated logging path for serial port interactions and enabling environment-aware testing across both dry-run sandboxes and EC2 deployments. Cantelli also addressed a logging sequence issue, ensuring that credential failures are now reported consistently and clearly. Their work emphasized robust error handling, comprehensive backend development, and thorough testing practices. These changes improved error tracking, state visibility, and credential retrieval reliability, resulting in more maintainable operations and streamlined troubleshooting across deployment environments.