Worked on the hydraxman/vscode-copilot-chat repository to deliver a targeted feature enhancing model discoverability and governance within the VS Code extension. Developed a Bring Your Own Key (BYOK) custom models grouping in the Model Picker, displaying both owner and key name to help users clearly identify and categorize custom models. This improvement, implemented using TypeScript and leveraging API integration, streamlined the user experience by reducing ambiguity and enabling faster, more accurate language model selection. The work maintained strong traceability through explicit issue linkage and descriptive commits, reinforcing compliance and security requirements while prioritizing stability and maintainability throughout the development process.