fix(app): isolate v2 servers from legacy layout (#38649)

packages/app/src/app.tsx

@@ -237,6 +237,30 @@ function UiI18nBridge(props: ParentProps) {
   return <I18nProvider value={{ locale: language.intl, t: language.t }}>{props.children}</I18nProvider>
 }
 
+function LayoutCompatibility(props: ParentProps) {
+  const global = useGlobal()
+  const navigate = useNavigate()
+  const server = useServer()
+  const settings = useSettings()
+
+  createEffect(() => {
+    if (settings.general.newLayoutDesigns()) return
+    const current = server.current
+    if (!current) return
+    const protocol = global.ensureServerCtx(current).sdk.protocolKind()
+    if (protocol !== "v2") return
+    const next = global.servers.list().find((s) => {
+      if (ServerConnection.key(s) === ServerConnection.key(current)) return false
+      return global.ensureServerCtx(s).sdk.protocolKind() !== "v2"
+    })
+    if (!next) return
+    navigate("/")
+    queueMicrotask(() => server.setActive(ServerConnection.key(next)))
+  })
+
+  return <>{props.children}</>
+}
+
 declare global {
   interface Window {
     __OPENCODE__?: {

packages/app/src/components/dialog-select-server.tsx

@@ -16,6 +16,7 @@ import { useGlobal } from "@/context/global"
 import { useLanguage } from "@/context/language"
 import { usePlatform } from "@/context/platform"
 import { normalizeServerUrl, ServerConnection, useServer } from "@/context/server"
+import { detectServerProtocol } from "@/utils/server-protocol"
 import { type ServerHealth, useCheckServerHealth } from "@/utils/server-health"
 import { useSettings } from "@/context/settings"
 import { useTabs } from "@/context/tabs"
@@ -263,6 +264,13 @@ export function useServerManagementController(options: { onSelect?: () => void;
         setStore("addServer", { error: language.t("dialog.server.add.error") })
         return
       }
+      if (
+        !settings.general.newLayoutDesigns() &&
+        (await detectServerProtocol(conn.http, platform.fetch ?? globalThis.fetch)) === "v2"
+      ) {
+        setStore("addServer", { error: language.t("dialog.server.add.error") })
+        return
+      }
 
       resetAdd()
       if (options.navigateOnAdd === false) {
@@ -307,6 +315,13 @@ export function useServerManagementController(options: { onSelect?: () => void;
         setStore("editServer", { error: language.t("dialog.server.add.error") })
         return
       }
+      if (
+        !settings.general.newLayoutDesigns() &&
+        (await detectServerProtocol(conn.http, platform.fetch ?? globalThis.fetch)) === "v2"
+      ) {
+        setStore("editServer", { error: language.t("dialog.server.add.error") })
+        return
+      }
       if (normalized === input.original.http.url) {
         server.add(conn)
       } else {
@@ -344,7 +359,10 @@ export function useServerManagementController(options: { onSelect?: () => void;
   )
 
   const sortedItems = createMemo(() => {
-    const list = items()
+    const raw = items()
+    const list = settings.general.newLayoutDesigns()
+      ? raw
+      : raw.filter((x) => global.ensureServerCtx(x).sdk.protocolKind() !== "v2")
     if (!list.length) return list
     const active = current()
     const order = new Map(list.map((url, index) => [url, index] as const))

packages/app/src/components/status-popover-body.tsx

@@ -276,7 +276,12 @@ export function StatusPopoverBody(props: { shown: Accessor<boolean> }) {
     dialogDead = true
     dialogRun += 1
   })
-  const sortedServers = createMemo(() => listServersByHealth(global.servers.list(), server.key, global.servers.health))
+  const sortedServers = createMemo(() => {
+    const list = settings.general.newLayoutDesigns()
+      ? global.servers.list()
+      : global.servers.list().filter((x) => global.ensureServerCtx(x).sdk.protocolKind() !== "v2")
+    return listServersByHealth(list, server.key, global.servers.health)
+  })
   const toggleMcp = useMcpToggle()
   const defaultServer = useDefaultServerKey(platform.getDefaultServer)
   const mcpNames = createMemo(() => Object.keys(sync().data.mcp ?? {}).sort((a, b) => a.localeCompare(b)))
@@ -303,7 +308,7 @@ export function StatusPopoverBody(props: { shown: Accessor<boolean> }) {
         <Tabs.List data-slot="tablist" class="bg-transparent border-b-0 px-4 pt-2 pb-0 gap-4 h-10">
           {!settings.general.newLayoutDesigns() && (
             <Tabs.Trigger value="servers" data-slot="tab" class="text-12-regular">
-              {global.servers.list().length > 0 ? `${global.servers.list().length} ` : ""}
+              {sortedServers().length > 0 ? `${sortedServers().length} ` : ""}
               {language.t("status.popover.tab.servers")}
             </Tabs.Trigger>
           )}

packages/app/src/context/layout.tsx

@@ -127,7 +127,7 @@ const normalizeStoredSessionTabs = (key: string, tabs: SessionTabs) => {
   }
 }
 
-const currentRoute = (pathname: string, search: string): LayoutRoute => {
+export const currentRoute = (pathname: string, search: string): LayoutRoute => {
   const parts = pathname.split("/").filter(Boolean)
   if (parts.length === 0) return { type: "home" }