Currently, Bolt doesn't support tool calls for GitHub Copilot conversations. Not sure if that was some sort of limitation with their API or if it was just omitted for now. I do know that VSCode's Copilot Chat does have access to MCPs and those seem to work just fine. Since they recently open-sourced their chat implementation, I didn't know if that could assist if it was some sort of technical limitation before: https://github.com/microsoft/vscode-copilot-chat