Developed targeted AI enhancements for the microsoft/vscode and microsoft/vscode-copilot-chat repositories, focusing on expanding prompt variants and refining routing logic to improve AI assistant capabilities. Leveraged TypeScript, Node, and React to introduce new prompt models and explicit guidance for parallel tool usage, optimizing both performance and user experience. The work emphasized cross-repository consistency, ensuring that prompt handling and tool orchestration remained aligned across both projects. Collaboration was prioritized through co-authored commits and detailed traceability under issue #4791. No major bugs were reported, reflecting a focus on feature delivery, code quality, and seamless integration within existing AI-assisted workflows.