Add extension mode context

packages/coding-agent/examples/extensions/handoff.ts

@@ -81,7 +81,7 @@ export default function (pi: ExtensionAPI) {
 	pi.registerCommand("handoff", {
 		description: "Transfer context to a new focused session",
 		handler: async (args, ctx) => {
-			if (!ctx.hasUI) {
+			if (ctx.mode !== "tui") {
 				ctx.ui.notify("handoff requires interactive mode", "error");
 				return;
 			}