diff --git a/webui/conformance/ConformanceApp.tsx b/webui/conformance/ConformanceApp.tsx
index a0056d2..57bed16 100644
--- a/webui/conformance/ConformanceApp.tsx
+++ b/webui/conformance/ConformanceApp.tsx
@@ -31,7 +31,7 @@ import {
   createQuickAccessLaunchContext,
   quickAccessLaunchState
 } from "../src/platform/launchContext";
-import type { ApiSettings, AuthInfo, QuickAccessToolMetadata } from "../src/types";
+import type { ApiSettings, AuthInfo, EffectiveViewProjection, QuickAccessToolMetadata } from "../src/types";
 
 export default function ConformanceApp() {
   const location = useLocation();
@@ -172,6 +172,20 @@ export default function ConformanceApp() {
 
 function QuickAccessScenario() {
   const location = useLocation();
+  const mode = new URLSearchParams(location.search).get("quick-access");
+  const viewContext = useMemo(
+    () => mode === "focused" || mode === "stale-focus"
+      ? {
+          ...CONFORMANCE_VIEW_PROJECTION,
+          presentation: {
+            quickAccessFocusedToolIds: mode === "focused"
+              ? ["files.recent"]
+              : ["mail.compose"]
+          }
+        }
+      : null,
+    [mode]
+  );
   const launchContext = useMemo(() => createQuickAccessLaunchContext({
     pathname: location.pathname,
     search: location.search,
@@ -185,8 +199,9 @@ function QuickAccessScenario() {
       tenantId: "tenant-1",
       label: "RPP-2026-0001 · Anwohnerparkausweis"
     },
-    temporalContext: { validityMode: "current", validAt: null, recordedAt: null }
-  }), [location.hash, location.pathname, location.search]);
+    temporalContext: { validityMode: "current", validAt: null, recordedAt: null },
+    viewContext
+  }), [location.hash, location.pathname, location.search, viewContext]);
   return <QuickAccessRail
     settings={CONFORMANCE_SETTINGS}
     auth={CONFORMANCE_AUTH}
@@ -272,8 +287,39 @@ const CONFORMANCE_QUICK_ACCESS_TOOLS: QuickAccessToolMetadata[] = [{
   acceptedReferenceKinds: [],
   returnedReferenceKinds: ["files.file-version"],
   helpContextId: "files.quick_access.files"
+}, {
+  contractVersion: "1",
+  id: "postbox.unread",
+  moduleId: "postbox",
+  categoryId: "messages",
+  label: "Unread messages",
+  description: "Open an authorized unread message.",
+  iconName: "messages",
+  surfaceId: "postbox.route.postbox",
+  fullPagePath: "/postbox",
+  allOf: [],
+  anyOf: [],
+  order: 10,
+  defaultEnabled: true,
+  modes: ["view"],
+  availability: "global",
+  acceptedReferenceKinds: [],
+  returnedReferenceKinds: ["postbox.message"],
+  helpContextId: "postbox.quick_access.messages"
 }];
 
+const CONFORMANCE_VIEW_PROJECTION: EffectiveViewProjection = {
+  activeViewId: "case-processing",
+  activeRevisionId: "case-processing-r4",
+  activeViewName: "Case processing",
+  visibleSurfaceIds: [],
+  projectionActive: true,
+  locked: false,
+  availableViews: [],
+  provenance: [{ source: "tenant-default", scopeType: "tenant", scopeId: "tenant-1" }],
+  diagnostics: []
+};
+
 function browserHistoryIndex(): number | null {
   const value = (window.history.state as { idx?: unknown } | null)?.idx;
   return typeof value === "number" && Number.isInteger(value) ? value : null;
diff --git a/webui/conformance/QuickAccessCoreFacade.ts b/webui/conformance/QuickAccessCoreFacade.ts
index 56e9d99..3adf7e9 100644
--- a/webui/conformance/QuickAccessCoreFacade.ts
+++ b/webui/conformance/QuickAccessCoreFacade.ts
@@ -12,6 +12,7 @@ export {
   dispatchQuickAccessResult,
   quickAccessLaunchState
 } from "../src/platform/launchContext";
+export { i18nMessage } from "../src/i18n/LanguageContext";
 export type {
   ApiSettings,
   QuickAccessRailProps,
diff --git a/webui/conformance/tests/ui-conformance.spec.ts b/webui/conformance/tests/ui-conformance.spec.ts
index d99d09e..db031dd 100644
--- a/webui/conformance/tests/ui-conformance.spec.ts
+++ b/webui/conformance/tests/ui-conformance.spec.ts
@@ -91,42 +91,7 @@ test("Quick Access preserves focus and adapts to a narrow viewport", async ({ pa
   await page.route("**/api/v1/quick-access/effective*", async (route) => {
     await route.fulfill({
       contentType: "application/json",
-      body: JSON.stringify({
-        categories: [{
-          id: "files",
-          label: "Files",
-          description: "Files beside the current task",
-          icon: "files",
-          order: 10,
-          enabled: true,
-          forced: false,
-          locked_by: null,
-          tools: [{
-            contract_version: "1",
-            id: "files.recent",
-            module_id: "files",
-            category_id: "files",
-            label: "Recent files",
-            description: "Select an authorized file without leaving this case.",
-            icon: "files",
-            surface_id: "files.route.files",
-            full_page_path: "/files",
-            required_all: [],
-            required_any: [],
-            order: 10,
-            default_enabled: true,
-            modes: ["select"],
-            availability: "global",
-            accepted_reference_kinds: [],
-            returned_reference_kinds: ["files.file-version"],
-            help_context_id: "files.quick_access.files",
-            enabled: true,
-            forced: false,
-            locked_by: null
-          }]
-        }],
-        diagnostics: []
-      })
+      body: JSON.stringify(quickAccessPayload(false))
     });
   });
   await page.setViewportSize({ width: 390, height: 844 });
@@ -145,6 +110,52 @@ test("Quick Access preserves focus and adapts to a narrow viewport", async ({ pa
   await expect(filesTrigger).toBeFocused();
 });
 
+test("View focus has a deliberate permission-derived all-tools escape", async ({ page }) => {
+  await page.route("**/api/v1/quick-access/effective*", async (route) => {
+    await route.fulfill({
+      contentType: "application/json",
+      body: JSON.stringify(quickAccessPayload(true))
+    });
+  });
+  await page.goto("/?theme=light&quick-access=focused");
+
+  const rail = page.locator(".quick-access-rail");
+  await expect(rail).toHaveAttribute("data-view-focus-mode", "focused");
+  await expect(page.getByRole("button", { name: "Files" })).toBeVisible();
+  await expect(page.getByRole("button", { name: "Messages" })).toHaveCount(0);
+
+  const allTools = page.locator(".quick-access-view-mode-button");
+  await expect(allTools).toHaveAttribute("aria-pressed", "false");
+  await allTools.click();
+  await expect(rail).toHaveAttribute("data-view-focus-mode", "all");
+  await expect(page.getByRole("button", { name: "Messages" })).toBeVisible();
+
+  await page.getByRole("button", { name: "Messages" }).click();
+  const explanation = page.locator(".quick-access-view-mode[role='status']");
+  await expect(explanation).toHaveAttribute("data-view-focus-mode", "all");
+  await explanation.getByRole("button").click();
+  await expect(rail).toHaveAttribute("data-view-focus-mode", "focused");
+  await expect(page.getByRole("button", { name: "Messages" })).toHaveCount(0);
+});
+
+test("a stale View focus falls back safely in a sparse optional-module catalogue", async ({ page }) => {
+  await page.route("**/api/v1/quick-access/effective*", async (route) => {
+    await route.fulfill({
+      contentType: "application/json",
+      body: JSON.stringify(quickAccessPayload(false))
+    });
+  });
+  await page.goto("/?theme=light&quick-access=stale-focus");
+
+  const rail = page.locator(".quick-access-rail");
+  await expect(rail).toHaveAttribute("data-view-focus-mode", "unavailable");
+  await expect(page.getByRole("button", { name: "Files" })).toBeVisible();
+  await expect(page.locator(".quick-access-view-mode-button")).toHaveCount(0);
+  await page.getByRole("button", { name: "Files" }).click();
+  await expect(page.locator(".quick-access-view-mode[role='status']"))
+    .toHaveAttribute("data-view-focus-mode", "unavailable");
+});
+
 test("light and dark desktop geometry remains stable", async ({ page }) => {
   await page.setViewportSize({ width: 1440, height: 1000 });
   await page.goto("/?theme=light");
@@ -179,3 +190,76 @@ test("narrow layout preserves task order without horizontal overflow", async ({
   expect(Math.abs(actionBarRightEdge - saveRightEdge)).toBeLessThanOrEqual(1);
   await expect(page.locator("[data-conformance-id='shared-ui-lab']")).toHaveScreenshot("shared-ui-light-narrow.png", { animations: "disabled", maxDiffPixelRatio: 0.005 });
 });
+
+function quickAccessPayload(includeMessages: boolean) {
+  const files = {
+    id: "files",
+    label: "Files",
+    description: "Files beside the current task",
+    icon: "files",
+    order: 10,
+    enabled: true,
+    forced: false,
+    locked_by: null,
+    tools: [{
+      contract_version: "1",
+      id: "files.recent",
+      module_id: "files",
+      category_id: "files",
+      label: "Recent files",
+      description: "Select an authorized file without leaving this case.",
+      icon: "files",
+      surface_id: "files.route.files",
+      full_page_path: "/files",
+      required_all: [],
+      required_any: [],
+      order: 10,
+      default_enabled: true,
+      modes: ["select"],
+      availability: "global",
+      accepted_reference_kinds: [],
+      returned_reference_kinds: ["files.file-version"],
+      help_context_id: "files.quick_access.files",
+      enabled: true,
+      forced: false,
+      locked_by: null
+    }]
+  };
+  const messages = {
+    id: "messages",
+    label: "Messages",
+    description: "Messages beside the current task",
+    icon: "messages",
+    order: 20,
+    enabled: true,
+    forced: false,
+    locked_by: null,
+    tools: [{
+      contract_version: "1",
+      id: "postbox.unread",
+      module_id: "postbox",
+      category_id: "messages",
+      label: "Unread messages",
+      description: "Open an authorized unread message.",
+      icon: "messages",
+      surface_id: "postbox.route.postbox",
+      full_page_path: "/postbox",
+      required_all: [],
+      required_any: [],
+      order: 10,
+      default_enabled: true,
+      modes: ["view"],
+      availability: "global",
+      accepted_reference_kinds: [],
+      returned_reference_kinds: ["postbox.message"],
+      help_context_id: "postbox.quick_access.messages",
+      enabled: true,
+      forced: false,
+      locked_by: null
+    }]
+  };
+  return {
+    categories: includeMessages ? [files, messages] : [files],
+    diagnostics: []
+  };
+}