fix(agents): share runtimes across connection sessions

apps/desktop/src/components/config/DriverStoreDialog.vue

@@ -44,6 +44,7 @@ const driverStoreTab = ref("agent");
 
 import { useSettingsStore } from "@/stores/settingsStore";
 import type { DriverStorePathInfo } from "@/lib/backend/api";
+import { driverRuntimeProtocolLabel } from "./driverRuntimeDisplay";
 const settingsStore = useSettingsStore();
 
 type DriverStoreDirKind = "plugin" | "agent";
@@ -1479,6 +1480,10 @@ watch(driverStoreTab, (tab) => {
                         <span>{{ runtimeKindLabel(runtime) }}</span>
                         <span class="text-muted-foreground/50">/</span>
                         <span>{{ runtimeSourceLabel(runtime) }}</span>
+                        <template v-if="runtime.protocol_mode">
+                          <span class="text-muted-foreground/50">/</span>
+                          <span>{{ driverRuntimeProtocolLabel(runtime) }}</span>
+                        </template>
                       </div>
                     </div>
 

apps/desktop/src/components/config/driverRuntimeDisplay.spec.ts

@@ -0,0 +1,13 @@
+import { describe, expect, it } from "vitest";
+import { driverRuntimeProtocolLabel } from "./driverRuntimeDisplay";
+
+describe("driverRuntimeProtocolLabel", () => {
+  it("shows aggregated multi-session counts", () => {
+    expect(driverRuntimeProtocolLabel({ protocol_mode: "multi_session", active_sessions: 4 })).toBe("Multi-session · 4 sessions");
+  });
+
+  it("labels legacy runtimes and hides unknown modes", () => {
+    expect(driverRuntimeProtocolLabel({ protocol_mode: "legacy", active_sessions: null })).toBe("Legacy");
+    expect(driverRuntimeProtocolLabel({ protocol_mode: null, active_sessions: null })).toBeNull();
+  });
+});

apps/desktop/src/components/config/driverRuntimeDisplay.ts

@@ -0,0 +1,11 @@
+import type { DriverRuntimeInfo } from "@/lib/backend/tauri";
+
+export function driverRuntimeProtocolLabel(runtime: Pick<DriverRuntimeInfo, "protocol_mode" | "active_sessions">): string | null {
+  if (runtime.protocol_mode === "multi_session") {
+    return `Multi-session · ${runtime.active_sessions ?? 0} sessions`;
+  }
+  if (runtime.protocol_mode === "legacy") {
+    return "Legacy";
+  }
+  return null;
+}