Yugang Wang developed a new test-connection command for the Azure/azure-cli-extensions repository, enabling users to verify connectivity to Redis Enterprise clusters directly from the CLI. This feature was implemented in Python and focused on integrating Redis connectivity checks into existing CLI workflows, allowing for proactive detection of network or configuration issues. By leveraging skills in CLI development, Redis integration, and testing, Yugang ensured the command aligned with Azure CLI extension architecture and maintainability standards. The work addressed a common supportability need, reducing troubleshooting time and improving operational reliability for users managing Redis Enterprise resources through the Azure CLI.