Worked on the Shopify/shop-chat-agent repository to address a critical authentication misconfiguration affecting the customer authentication flow. Focused on configuration management, the developer standardized the authentication configuration by renaming the config section from mcp.customer_authentication to customer_authentication and ensured redirect_uris matched the expected format. This change, implemented using TOML, resolved issues that previously caused login problems and improved the maintainability of the authentication module. By aligning configuration naming and formatting, the update reduced the risk of future misconfigurations and streamlined the authentication process. The work demonstrated attention to detail in configuration management and a methodical approach to resolving production issues.