Fix duplicate workspace shell navigation

packages/app/e2e/workspace-navigation-regression.spec.ts

@@ -36,6 +36,7 @@ import {
   workspaceDeckEntryLocator,
   expectWorkspaceDeckEntryCount,
 } from "./helpers/workspace-ui";
+import { clickSettingsBackToWorkspace } from "./helpers/settings";
 
 const LOADING_WORKSPACE_TEXT_PATTERN = /Loading workspace/i;
 
@@ -75,6 +76,18 @@ async function expectNoLoadingPane(page: Page): Promise<void> {
   await expect(page.getByText(LOADING_WORKSPACE_TEXT_PATTERN)).toHaveCount(0);
 }
 
+async function getVisibleDraftTabCount(page: Page): Promise<number> {
+  return page.locator('[data-testid^="workspace-tab-draft"]').filter({ visible: true }).count();
+}
+
+async function closeFirstVisibleDraftTab(page: Page): Promise<void> {
+  const closeButton = page.locator('[data-testid^="workspace-draft-close-"]').filter({
+    visible: true,
+  });
+  await expect(closeButton.first()).toBeVisible({ timeout: 30_000 });
+  await closeButton.first().click();
+}
+
 async function installDaemonWebSocketGate(page: Page, daemonPort: string) {
   let acceptingConnections = true;
   const activeSockets = new Set<WebSocketRoute>();
@@ -133,6 +146,25 @@ async function installDaemonWebSocketGate(page: Page, daemonPort: string) {
 test.describe("Workspace navigation regression", () => {
   test.describe.configure({ timeout: 240_000 });
 
+  test("keeps one replacement draft after returning from settings and closing the last tab", async ({
+    page,
+    withWorkspace,
+  }) => {
+    const workspace = await withWorkspace({ prefix: "workspace-settings-back-tab-" });
+
+    await workspace.navigateTo();
+    await expect.poll(() => getVisibleDraftTabCount(page), { timeout: 30_000 }).toBe(1);
+
+    await openSettings(page);
+    await clickSettingsBackToWorkspace(page);
+    await expect(page).toHaveURL(/\/workspace\//, { timeout: 30_000 });
+    await expect.poll(() => getVisibleDraftTabCount(page), { timeout: 30_000 }).toBe(1);
+
+    await closeFirstVisibleDraftTab(page);
+
+    await expect.poll(() => getVisibleDraftTabCount(page), { timeout: 30_000 }).toBe(1);
+  });
+
   test("keeps the workspace rendered while reconnecting to the host", async ({ page }) => {
     const serverId = process.env.E2E_SERVER_ID;
     const daemonPort = process.env.E2E_DAEMON_PORT;

packages/app/src/app/h/[serverId]/agent/[agentId].tsx

@@ -1,12 +1,12 @@
 import { useEffect, useRef } from "react";
-import { useLocalSearchParams, useRouter, type Href } from "expo-router";
+import { useLocalSearchParams, usePathname, useRouter, type Href } from "expo-router";
 import { HostRouteBootstrapBoundary } from "@/components/host-route-bootstrap-boundary";
 import { useSessionStore } from "@/stores/session-store";
 import { useResolveWorkspaceIdByCwd } from "@/stores/session-store-hooks";
 import { useHostRuntimeClient, useHostRuntimeIsConnected } from "@/runtime/host-runtime";
 import { buildHostRootRoute } from "@/utils/host-routes";
 import { resolveWorkspaceIdByExecutionDirectory } from "@/utils/workspace-execution";
-import { prepareWorkspaceTab } from "@/utils/workspace-navigation";
+import { navigateToPreparedWorkspaceTab } from "@/utils/workspace-navigation";
 
 export default function HostAgentReadyRoute() {
   return (
@@ -18,6 +18,7 @@ export default function HostAgentReadyRoute() {
 
 function HostAgentReadyRouteContent() {
   const router = useRouter();
+  const pathname = usePathname();
   const params = useLocalSearchParams<{
     serverId?: string;
     agentId?: string;
@@ -50,15 +51,15 @@ function HostAgentReadyRouteContent() {
 
     if (resolvedWorkspaceId) {
       redirectedRef.current = true;
-      router.replace(
-        prepareWorkspaceTab({
-          serverId,
-          workspaceId: resolvedWorkspaceId,
-          target: { kind: "agent", agentId },
-        }) as Href,
-      );
+      navigateToPreparedWorkspaceTab({
+        serverId,
+        workspaceId: resolvedWorkspaceId,
+        target: { kind: "agent", agentId },
+        navigationMethod: "replace",
+        currentPathname: pathname,
+      });
     }
-  }, [agentId, resolvedWorkspaceId, router, serverId]);
+  }, [agentId, pathname, resolvedWorkspaceId, router, serverId]);
 
   useEffect(() => {
     if (redirectedRef.current) {
@@ -102,13 +103,13 @@ function HostAgentReadyRouteContent() {
         }
         redirectedRef.current = true;
         if (workspaceId) {
-          router.replace(
-            prepareWorkspaceTab({
-              serverId,
-              workspaceId,
-              target: { kind: "agent", agentId },
-            }) as Href,
-          );
+          navigateToPreparedWorkspaceTab({
+            serverId,
+            workspaceId,
+            target: { kind: "agent", agentId },
+            navigationMethod: "replace",
+            currentPathname: pathname,
+          });
           return;
         }
         router.replace(buildHostRootRoute(serverId));
@@ -125,7 +126,7 @@ function HostAgentReadyRouteContent() {
     return () => {
       cancelled = true;
     };
-  }, [agentId, client, hasHydratedWorkspaces, isConnected, router, serverId]);
+  }, [agentId, client, hasHydratedWorkspaces, isConnected, pathname, router, serverId]);
 
   return null;
 }

packages/app/src/components/agent-list.tsx

@@ -21,7 +21,7 @@ import { Archive } from "lucide-react-native";
 import { getProviderIcon } from "@/components/provider-icons";
 import { buildHostAgentDetailRoute } from "@/utils/host-routes";
 import { resolveWorkspaceIdByExecutionDirectory } from "@/utils/workspace-execution";
-import { prepareWorkspaceTab } from "@/utils/workspace-navigation";
+import { navigateToPreparedWorkspaceTab } from "@/utils/workspace-navigation";
 import type { Agent } from "@/stores/session-store";
 import { useArchiveAgent } from "@/hooks/use-archive-agent";
 
@@ -324,13 +324,12 @@ export function AgentList({
       }
 
       rememberArchivedAgentDetail(agent);
-      const route = prepareWorkspaceTab({
+      navigateToPreparedWorkspaceTab({
         serverId,
         workspaceId,
         target: { kind: "agent", agentId },
         pin: Boolean(agent.archivedAt),
       });
-      router.navigate(route);
     },
     [isActionSheetVisible, onAgentSelect],
   );

packages/app/src/components/agent-stream-view.tsx

@@ -21,7 +21,6 @@ import {
 import { StyleSheet, withUnistyles } from "react-native-unistyles";
 import { useIsCompactFormFactor } from "@/constants/layout";
 import { useMutation } from "@tanstack/react-query";
-import { useRouter } from "expo-router";
 import Animated, {
   FadeIn,
   FadeOut,
@@ -83,7 +82,7 @@ import {
 import { MAX_CONTENT_WIDTH } from "@/constants/layout";
 import { normalizeInlinePathTarget } from "@/utils/inline-path";
 import { resolveWorkspaceIdByExecutionDirectory } from "@/utils/workspace-execution";
-import { prepareWorkspaceTab } from "@/utils/workspace-navigation";
+import { navigateToPreparedWorkspaceTab } from "@/utils/workspace-navigation";
 import { useStableEvent } from "@/hooks/use-stable-event";
 import {
   getWorkingIndicatorDotStrength,
@@ -135,7 +134,6 @@ const AgentStreamViewComponent = forwardRef<AgentStreamViewHandle, AgentStreamVi
     ref,
   ) {
     const viewportRef = useRef<StreamViewportHandle | null>(null);
-    const router = useRouter();
     const isMobile = useIsCompactFormFactor();
     const streamRenderStrategy = useMemo(
       () =>
@@ -213,12 +211,11 @@ const AgentStreamViewComponent = forwardRef<AgentStreamViewHandle, AgentStreamVi
           }
 
           if (workspaceId) {
-            const route = prepareWorkspaceTab({
+            navigateToPreparedWorkspaceTab({
               serverId: resolvedServerId,
               workspaceId,
               target: { kind: "file", path: normalized.file },
             });
-            router.navigate(route);
           }
           return;
         }
@@ -247,7 +244,6 @@ const AgentStreamViewComponent = forwardRef<AgentStreamViewHandle, AgentStreamVi
         onOpenWorkspaceFile,
         requestDirectoryListing,
         resolvedServerId,
-        router,
         setExplorerTabForCheckout,
         openWorkspaceFile,
         workspaceId,

packages/app/src/hooks/use-command-center.ts

@@ -19,7 +19,7 @@ import { useKeyboardShortcutOverrides } from "@/hooks/use-keyboard-shortcut-over
 import { getShortcutOs } from "@/utils/shortcut-platform";
 import { getIsElectronRuntime } from "@/constants/layout";
 import { resolveWorkspaceIdByExecutionDirectory } from "@/utils/workspace-execution";
-import { prepareWorkspaceTab } from "@/utils/workspace-navigation";
+import { navigateToPreparedWorkspaceTab } from "@/utils/workspace-navigation";
 import { focusWithRetries } from "@/utils/web-focus";
 import { useActiveServerId } from "@/hooks/use-active-server-id";
 
@@ -123,7 +123,7 @@ function resolveActionShortcutKeys(
 }
 
 export function useCommandCenter() {
-  const _pathname = usePathname();
+  const pathname = usePathname();
   const routeActiveServerId = useActiveServerId();
   const { overrides } = useKeyboardShortcutOverrides();
   const open = useKeyboardShortcutsStore((s) => s.commandCenterOpen);
@@ -212,14 +212,14 @@ export function useCommandCenter() {
         router.navigate(buildHostAgentDetailRoute(agent.serverId, agent.id) as Href);
         return;
       }
-      const route = prepareWorkspaceTab({
+      navigateToPreparedWorkspaceTab({
         serverId: agent.serverId,
         workspaceId,
         target: { kind: "agent", agentId: agent.id },
+        currentPathname: pathname,
       });
-      router.navigate(route);
     },
-    [setOpen],
+    [pathname, setOpen],
   );
 
   const openProjectPicker = useOpenProjectPicker(activeServerId);

packages/app/src/hooks/use-open-project.test.ts

@@ -1,5 +1,9 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
 
+vi.hoisted(() => {
+  (globalThis as typeof globalThis & { __DEV__?: boolean }).__DEV__ = false;
+});
+
 vi.mock("@react-native-async-storage/async-storage", () => {
   const storage = new Map<string, string>();
   return {
@@ -19,10 +23,8 @@ const { replaceRoute } = vi.hoisted(() => ({
   replaceRoute: vi.fn(),
 }));
 
-vi.mock("expo-router", () => ({
-  router: {
-    replace: replaceRoute,
-  },
+vi.mock("@/hooks/use-workspace-navigation", () => ({
+  navigateToWorkspace: replaceRoute,
 }));
 
 import { openProjectDirectly } from "@/hooks/use-open-project";
@@ -89,7 +91,7 @@ describe("openProjectDirectly", () => {
       mergeWorkspaces: useSessionStore.getState().mergeWorkspaces,
       setHasHydratedWorkspaces: useSessionStore.getState().setHasHydratedWorkspaces,
       openDraftTab: createOpenDraftTab(),
-      replaceRoute,
+      navigateToWorkspace: replaceRoute,
     });
 
     expect(result).toBe(true);
@@ -115,7 +117,7 @@ describe("openProjectDirectly", () => {
     const tabs = collectAllTabs(layout.root);
     expect(tabs).toHaveLength(1);
     expect(tabs[0]?.target.kind).toBe("draft");
-    expect(replaceRoute).toHaveBeenCalledWith("/h/server-1/workspace/1");
+    expect(replaceRoute).toHaveBeenCalledWith("server-1", "1");
   });
 
   it("does not navigate or seed tabs when openProject fails", async () => {
@@ -133,7 +135,7 @@ describe("openProjectDirectly", () => {
       mergeWorkspaces: useSessionStore.getState().mergeWorkspaces,
       setHasHydratedWorkspaces: useSessionStore.getState().setHasHydratedWorkspaces,
       openDraftTab: createOpenDraftTab(),
-      replaceRoute,
+      navigateToWorkspace: replaceRoute,
     });
 
     expect(result).toBe(false);

packages/app/src/hooks/use-open-project.ts

@@ -1,5 +1,4 @@
 import { useCallback } from "react";
-import { router, type Href } from "expo-router";
 import type { DaemonClient } from "@server/client/daemon-client";
 import { useHostRuntimeClient, useHostRuntimeIsConnected } from "@/runtime/host-runtime";
 import {
@@ -12,7 +11,7 @@ import {
   useWorkspaceLayoutStore,
 } from "@/stores/workspace-layout-store";
 import { generateDraftId } from "@/stores/draft-keys";
-import { buildHostWorkspaceRoute } from "@/utils/host-routes";
+import { navigateToWorkspace } from "@/hooks/use-workspace-navigation";
 
 interface OpenProjectDirectlyInput {
   serverId: string;
@@ -22,7 +21,7 @@ interface OpenProjectDirectlyInput {
   mergeWorkspaces: (serverId: string, workspaces: Iterable<WorkspaceDescriptor>) => void;
   setHasHydratedWorkspaces: (serverId: string, hydrated: boolean) => void;
   openDraftTab: (workspaceKey: string) => string | null;
-  replaceRoute: (route: string) => void;
+  navigateToWorkspace: (serverId: string, workspaceId: string) => void;
 }
 
 export async function openProjectDirectly(input: OpenProjectDirectlyInput): Promise<boolean> {
@@ -50,7 +49,7 @@ export async function openProjectDirectly(input: OpenProjectDirectlyInput): Prom
   }
 
   input.openDraftTab(workspaceKey);
-  input.replaceRoute(buildHostWorkspaceRoute(normalizedServerId, workspace.id));
+  input.navigateToWorkspace(normalizedServerId, workspace.id);
   return true;
 }
 
@@ -75,9 +74,7 @@ export function useOpenProject(serverId: string | null): (path: string) => Promi
             kind: "draft",
             draftId: generateDraftId(),
           }),
-        replaceRoute: (route) => {
-          router.replace(route as Href);
-        },
+        navigateToWorkspace,
       });
     },
     [client, isConnected, mergeWorkspaces, normalizedServerId, setHasHydratedWorkspaces],

packages/app/src/hooks/use-workspace-navigation.test.ts

@@ -1,12 +1,12 @@
 import { beforeEach, describe, expect, it, vi } from "vitest";
 
-const { navigateMock } = vi.hoisted(() => ({
-  navigateMock: vi.fn(),
+const { dismissToMock } = vi.hoisted(() => ({
+  dismissToMock: vi.fn(),
 }));
 
 vi.mock("expo-router", () => ({
   router: {
-    navigate: navigateMock,
+    dismissTo: dismissToMock,
   },
 }));
 
@@ -19,11 +19,11 @@ import {
 
 describe("navigateToWorkspace", () => {
   beforeEach(() => {
-    navigateMock.mockReset();
+    dismissToMock.mockReset();
     syncNavigationActiveWorkspace({ current: null });
   });
 
-  it("uses router navigation from a non-workspace route even when active selection is stale", () => {
+  it("dismisses to the workspace route from a non-workspace route even when active selection is stale", () => {
     activateNavigationWorkspaceSelection({
       serverId: "server-1",
       workspaceId: "workspace-a",
@@ -33,7 +33,7 @@ describe("navigateToWorkspace", () => {
       currentPathname: "/h/server-1/sessions",
     });
 
-    expect(navigateMock).toHaveBeenCalledWith("/h/server-1/workspace/workspace-b");
+    expect(dismissToMock).toHaveBeenCalledWith("/h/server-1/workspace/workspace-b");
     expect(getNavigationActiveWorkspaceSelection()).toEqual({
       serverId: "server-1",
       workspaceId: "workspace-a",
@@ -50,7 +50,7 @@ describe("navigateToWorkspace", () => {
       currentPathname: "/h/server-1/workspace/workspace-a",
     });
 
-    expect(navigateMock).not.toHaveBeenCalled();
+    expect(dismissToMock).not.toHaveBeenCalled();
     expect(getNavigationActiveWorkspaceSelection()).toEqual({
       serverId: "server-1",
       workspaceId: "workspace-b",

packages/app/src/hooks/use-workspace-navigation.ts

@@ -19,7 +19,7 @@ function shouldUseRetainedWorkspaceSwitch(input: {
   }
 
   if (input.currentPathname == null) {
-    return true;
+    return false;
   }
 
   return parseHostWorkspaceRouteFromPathname(input.currentPathname) !== null;
@@ -49,7 +49,7 @@ export function navigateToWorkspace(
   }
 
   const href = buildHostWorkspaceRoute(serverId, workspaceId);
-  router.navigate(href);
+  router.dismissTo(href);
 }
 
 export function useWorkspaceNavigation() {

packages/app/src/screens/settings-screen.tsx

@@ -78,13 +78,13 @@ import { useIsCompactFormFactor } from "@/constants/layout";
 import { useLocalDaemonServerId } from "@/hooks/use-is-local-daemon";
 import {
   buildHostOpenProjectRoute,
-  buildHostWorkspaceRoute,
   buildProjectsSettingsRoute,
   buildSettingsHostRoute,
   buildSettingsSectionRoute,
   type SettingsSectionSlug,
 } from "@/utils/host-routes";
 import { getLastNavigationWorkspaceRouteSelection } from "@/stores/navigation-active-workspace-store";
+import { navigateToWorkspace } from "@/hooks/use-workspace-navigation";
 
 // ---------------------------------------------------------------------------
 // View model
@@ -963,9 +963,7 @@ export default function SettingsScreen({ view }: SettingsScreenProps) {
   const handleBackToWorkspace = useCallback(() => {
     const lastWorkspaceRoute = getLastNavigationWorkspaceRouteSelection();
     if (lastWorkspaceRoute) {
-      router.replace(
-        buildHostWorkspaceRoute(lastWorkspaceRoute.serverId, lastWorkspaceRoute.workspaceId),
-      );
+      navigateToWorkspace(lastWorkspaceRoute.serverId, lastWorkspaceRoute.workspaceId);
       return;
     }
     if (anyOnlineServerId) {

packages/app/src/utils/workspace-navigation.test.ts

@@ -8,6 +8,7 @@ const { platformState, routerMock } = vi.hoisted(() => ({
   routerMock: {
     back: vi.fn(),
     canGoBack: vi.fn(() => false),
+    dismissTo: vi.fn(),
     navigate: vi.fn(),
     replace: vi.fn(),
   },
@@ -60,6 +61,7 @@ describe("prepareWorkspaceTab", () => {
     routerMock.back.mockReset();
     routerMock.canGoBack.mockReset();
     routerMock.canGoBack.mockReturnValue(false);
+    routerMock.dismissTo.mockReset();
     routerMock.navigate.mockReset();
     routerMock.replace.mockReset();
     syncNavigationActiveWorkspace({ current: null });
@@ -106,6 +108,7 @@ describe("prepareWorkspaceTab", () => {
 
     expect(route).toBe("/h/server-1/workspace/b64_L3JlcG8vd29ya3RyZWU");
     expect(routerMock.back).toHaveBeenCalledOnce();
+    expect(routerMock.dismissTo).not.toHaveBeenCalled();
     expect(routerMock.replace).not.toHaveBeenCalled();
 
     vi.runAllTimers();

packages/app/src/utils/workspace-navigation.ts

@@ -1,5 +1,6 @@
-import { router, type Href } from "expo-router";
+import { router } from "expo-router";
 import { isNative } from "@/constants/platform";
+import { navigateToWorkspace } from "@/hooks/use-workspace-navigation";
 import {
   activateNavigationWorkspaceSelection,
   getLastNavigationWorkspaceRouteSelection,
@@ -22,6 +23,7 @@ interface PrepareWorkspaceTabInput {
 
 interface NavigateToPreparedWorkspaceTabInput extends PrepareWorkspaceTabInput {
   navigationMethod?: "navigate" | "replace";
+  currentPathname?: string | null;
 }
 
 function getPreparedTarget(target: WorkspaceTabTarget): WorkspaceTabTarget {
@@ -65,9 +67,13 @@ export function navigateToPreparedWorkspaceTab(input: NavigateToPreparedWorkspac
       }, 0);
       return route;
     }
-    router.replace(route as Href);
+    navigateToWorkspace(input.serverId, input.workspaceId, {
+      currentPathname: input.currentPathname,
+    });
   } else {
-    router.navigate(route as Href);
+    navigateToWorkspace(input.serverId, input.workspaceId, {
+      currentPathname: input.currentPathname,
+    });
   }
   return route;
 }