diff --git a/.changeset/app-management-search-keyed-label-4343.md b/.changeset/app-management-search-keyed-label-4343.md
new file mode 100644
index 000000000..62acaa362
--- /dev/null
+++ b/.changeset/app-management-search-keyed-label-4343.md
@@ -0,0 +1,19 @@
+---
+'@object-ui/console': patch
+---
+
+The Applications page's search box no longer takes the page out on the first keystroke when an app carries a non-string label
+
+`apps/console/src/pages/system/AppManagementPage.tsx` filtered on `(app.label || '').toLowerCase()`. `label` and `description` are `I18nLabel` in `AppSchema` — `string | Record< string, string >` in `@objectstack/spec` 17.0.0-rc.6 — so an authored non-string label is spec-legal metadata, and an object is **truthy**: the `|| ''` guard never fired for one, and `.toLowerCase()` received the object.
+
+```
+TypeError: (l || "").toLowerCase is not a function
+```
+
+That throw happened inside `filter` **during render**, so it took the whole page down rather than degrading search. It stayed invisible until someone typed, because `if (!searchQuery) return true` returns before either read — the page mounted perfectly with the very metadata that killed it one character later.
+
+Both reads now go through the resolver the rows already render with: `appTitle` (the single display-name helper objectui#4307 introduced in this file) for the label, and the identical `resolveKeyedI18nLabel(…, t)` call the description paragraph makes. This is a repair to one page's filter, not a new capability — but it does make search match what the operator can actually see: for objectui's keyed label form it now matches the pack's answer rather than the authoring `defaultValue`, and it matches `app.name` wherever the row heading itself falls back to it.
+
+Routing search through the render path also means it cannot drift out of step again. The inline locale map form (`{ en: 'Storefront', 'zh-CN': '店面' }`) is still resolved by neither path — the row heading falls back to the app name and search now matches on exactly that, instead of crashing on it — so when objectui#4163 widens the resolver, display and search gain the map form in the same commit.
+
+No first-party app ships a non-string app label today, so this was reachable through authored metadata rather than live in the shipped examples; the crash is real for anyone who authored one, and `AppSchema` accepts it with a green parse.
diff --git a/apps/console/src/pages/system/AppManagementPage.tsx b/apps/console/src/pages/system/AppManagementPage.tsx
index 5ae57899b..1c5528970 100644
--- a/apps/console/src/pages/system/AppManagementPage.tsx
+++ b/apps/console/src/pages/system/AppManagementPage.tsx
@@ -138,14 +138,39 @@ export function AppManagementPage() {
   const [confirmDelete, setConfirmDelete] = useState<string | null>(null);
   const [processing, setProcessing] = useState(false);
 
-  // Filter apps by search query
+  /**
+   * Filter apps by search query — through the SAME resolver the rows render
+   * with (objectui#4343).
+   *
+   * `label` and `description` are `I18nLabel` in `AppSchema`
+   * (`string | Record< string, string >` in `@objectstack/spec` 17.0.0-rc.6), so
+   * an authored non-string label is spec-legal. An object is TRUTHY, so the
+   * `(app.label || '')` guard this filter used to carry never fired for one — it
+   * handed the object straight to `.toLowerCase()`:
+   *
+   *     TypeError: (l || "").toLowerCase is not a function
+   *
+   * thrown inside `filter` **during render**, so it took the whole page out
+   * rather than degrading search. And only on the first keystroke, because
+   * `if (!searchQuery) return true` short-circuits the empty case — the page
+   * loaded fine and died the moment anyone used it.
+   *
+   * The fix is not a wider guard, it is the SAME reading the rows already use:
+   * `appTitle` (the one display-name helper #4307 introduced) and the identical
+   * `resolveKeyedI18nLabel(…, t)` call the description `< p >` makes below. So
+   * search now matches what the operator can actually SEE — the pack's answer
+   * for a keyed label rather than its authoring `defaultValue`, and `app.name`
+   * wherever the row heading itself falls back to it — and any future widening
+   * of the resolver (objectui#4163's inline-locale-map form) reaches search and
+   * display in the same commit, instead of leaving this filter behind again.
+   */
   const filteredApps = (apps || []).filter((app: any) => {
     if (!searchQuery) return true;
     const q = searchQuery.toLowerCase();
     return (
       (app.name || '').toLowerCase().includes(q) ||
-      (app.label || '').toLowerCase().includes(q) ||
-      (app.description || '').toLowerCase().includes(q)
+      appTitle(app).toLowerCase().includes(q) ||
+      (resolveKeyedI18nLabel(app.description, t) || '').toLowerCase().includes(q)
     );
   });
 
diff --git a/apps/console/src/pages/system/__tests__/AppManagementPage.search.test.tsx b/apps/console/src/pages/system/__tests__/AppManagementPage.search.test.tsx
new file mode 100644
index 000000000..635df61af
--- /dev/null
+++ b/apps/console/src/pages/system/__tests__/AppManagementPage.search.test.tsx
@@ -0,0 +1,292 @@
+// Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
+
+/**
+ * objectui#4343 — the Applications page's SEARCH filter reads the same fields
+ * the rows render, and must read them the same way.
+ *
+ * Filed out of #4307 (PR #4344), which keyed this page's chrome and introduced
+ * the `appTitle` helper the rows name an app by. The filter one screen above it
+ * was left on a raw read:
+ *
+ *     (app.label || '').toLowerCase().includes(q)
+ *
+ * `label` and `description` are `I18nLabel` in `AppSchema` — `string |
+ * Record<string, string>` in `@objectstack/spec` 17.0.0-rc.6 — so a non-string
+ * label is spec-legal metadata. An object is TRUTHY, so `|| ''` never fired for
+ * one and `.toLowerCase()` got the object:
+ *
+ *     TypeError: (l || "").toLowerCase is not a function
+ *
+ * thrown inside `filter` during render, which takes the page out instead of
+ * degrading search — and only once someone types, because `if (!searchQuery)
+ * return true` short-circuits the empty case.
+ *
+ * ## What these cases pin, and why the mock answers in a real language
+ *
+ * The sister i18n file mocks `t` to answer in no natural language at all, which
+ * is right for proving the chrome asks the pack. It cannot ask THIS file's
+ * question, though: search is judged by what an operator can SEE, so the pack
+ * here answers with real words that deliberately share no substring with the
+ * call site's own `defaultValue` (`app.crm.label` -> `Vertrieb`, never `CRM`).
+ * That makes every keyed case two-sided — the resolved text matches, and the
+ * authoring `defaultValue` does NOT — which is what pins the `t` argument
+ * rather than merely pinning that some resolver was called.
+ *
+ * ## Reverse verification (direction predicted before running)
+ *
+ * Restoring the two raw reads turns the keyed and map cases RED **by the
+ * TypeError above**, thrown on the first keystroke, and leaves the plain-string
+ * control GREEN — that asymmetry is the whole claim, and it is why the control
+ * case is here at all. It is also why `toThrow`-style coverage would be
+ * worthless: the defect is not "something throws", it is that one truthy shape
+ * reaches a string method.
+ *
+ * ⚠️ The prediction was wrong the first time, and the reason is worth keeping.
+ * Four cases were expected red; three came back red. The filter is a chain of
+ * `||`, so **a query the NAME already satisfies short-circuits before the label
+ * is read** — the map case searched `mapped` against `mapped_app` and passed on
+ * the UNFIXED page, having never reached the throwing term. Every red-first
+ * case in this file therefore hands the filter a query no earlier term can
+ * answer (`vertr`, `crm`, `kunden` against `sales_app`; `zzz` against
+ * everything). A case that matches on the name is testing the name.
+ */
+
+import { describe, expect, it, vi, beforeEach } from 'vitest';
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { MemoryRouter } from 'react-router-dom';
+
+const { refresh, apps } = vi.hoisted(() => ({
+  refresh: vi.fn(async () => {}),
+  apps: { value: [] as any[] },
+}));
+
+vi.mock('sonner', () => ({
+  toast: { success: vi.fn(), error: vi.fn() },
+}));
+
+vi.mock('@object-ui/app-shell', () => ({
+  useMetadata: () => ({ apps: apps.value, refresh }),
+  useAdapter: () => ({ getClient: () => ({ meta: { saveItem: vi.fn(), deleteItem: vi.fn() } }) }),
+}));
+
+/**
+ * A pack that answers these two keys in another language, and echoes the call
+ * site's `defaultValue` for everything else.
+ *
+ * The echo keeps the page's own chrome in English so the search box is still
+ * addressable by its testid and the rows still read naturally; the two real
+ * answers are what make "matched the pack, not the `defaultValue`" a
+ * distinguishable outcome. Neither answer contains `crm` — the substring the
+ * authoring `defaultValue` would have offered.
+ */
+const PACK: Record<string, string> = {
+  'app.crm.label': 'Vertrieb',
+  'app.crm.description': 'Kundenverwaltung',
+};
+
+vi.mock('@object-ui/i18n', async (importOriginal) => ({
+  // Partial, via `importOriginal`: `@object-ui/components` builds its own
+  // `createSafeTranslation` probes at module scope.
+  ...(await importOriginal<Record<string, unknown>>()),
+  useObjectTranslation: () => ({
+    t: (key: string, options?: Record<string, unknown>) => {
+      // i18next returns the empty string for a null/undefined key
+      // (`translate()`: `if (keys == null) return '';`, i18next 26.3.6). That
+      // is not a detail worth inventing a behaviour for — it is exactly the
+      // call `resolveKeyedI18nLabel` makes when handed an object with no `key`,
+      // which is the INLINE LOCALE MAP case below. Reproducing it is what lets
+      // that case describe the real page instead of this mock.
+      if (key == null) return '';
+      return (
+        PACK[key] ??
+        String(options?.defaultValue ?? key).replace(/\{\{(\w+)\}\}/g, (_m, name: string) =>
+          String(options?.[name] ?? ''),
+        )
+      );
+    },
+  }),
+}));
+
+const { AppManagementPage } = await import('../AppManagementPage');
+
+/**
+ * Plain-string labels — the shape every first-party app ships today (`crm`,
+ * `showcase`, `todo`, `setup`, `account`, `studio` are all strings). `WEB`'s
+ * label and description are deliberately unreachable from its `name`, so the
+ * control below can exercise the two terms this card changed in isolation.
+ */
+const OPS = { name: 'ops_app', label: 'Ops', description: 'Billing and invoices', active: true };
+const WEB = { name: 'web_app', label: 'Marketing Site', description: 'Public brochure', active: true };
+
+/**
+ * objectui's KEYED form. `name` deliberately carries no `crm`, so a match on
+ * the authoring `defaultValue` cannot be smuggled in through the name term.
+ */
+const KEYED = {
+  name: 'sales_app',
+  label: { key: 'app.crm.label', defaultValue: 'CRM' },
+  active: true,
+};
+
+/**
+ * The spec's INLINE LOCALE MAP form — `string | Record<string, string>` is what
+ * `AppSchema.label` accepts today, so this object is what a partner authoring
+ * `defineApp` can put on the wire with a green parse. It is the shape that
+ * makes this bug reachable rather than hypothetical.
+ */
+const MAPPED = {
+  name: 'mapped_app',
+  label: { en: 'Storefront', 'zh-CN': '店面' },
+  active: true,
+};
+
+function renderPage() {
+  return render(
+    <MemoryRouter>
+      <AppManagementPage />
+    </MemoryRouter>,
+  );
+}
+
+/** Type into the search box — the keystroke the page used to die on. */
+async function search(text: string) {
+  const user = userEvent.setup();
+  await user.type(screen.getByTestId('app-search-input'), text);
+}
+
+beforeEach(() => {
+  vi.clearAllMocks();
+  apps.value = [];
+});
+
+describe('a non-string label survives the first keystroke', () => {
+  it('filters a KEYED label on the text the pack returned', async () => {
+    apps.value = [KEYED, OPS];
+    renderPage();
+
+    // Before this card: `TypeError: (l || "").toLowerCase is not a function`,
+    // thrown out of `filter` during the re-render this keystroke causes.
+    await search('vertr');
+
+    expect(screen.getByTestId('app-card-sales_app')).toBeInTheDocument();
+    expect(screen.queryByTestId('app-card-ops_app')).toBeNull();
+  });
+
+  it('matches the RESOLVED label, not the authoring `defaultValue`', async () => {
+    // The other side of the same claim: `t` must actually be handed to the
+    // resolver. Drop the second argument and the label resolves to its
+    // authoring `CRM` instead of the pack's `Vertrieb`, which is a string —
+    // so the page would NOT crash, and only this case would notice.
+    apps.value = [KEYED, OPS];
+    renderPage();
+
+    await search('crm');
+
+    expect(screen.queryByTestId('app-card-sales_app')).toBeNull();
+    expect(screen.queryByTestId('app-card-ops_app')).toBeNull();
+    expect(screen.getByTestId('no-apps-message')).toBeInTheDocument();
+  });
+
+  it('filters a KEYED description the same way — the line below the defect', async () => {
+    apps.value = [
+      { name: 'sales_app', label: 'Sales', description: { key: 'app.crm.description' }, active: true },
+      OPS,
+    ];
+    renderPage();
+
+    await search('kunden');
+
+    expect(screen.getByTestId('app-card-sales_app')).toBeInTheDocument();
+    expect(screen.queryByTestId('app-card-ops_app')).toBeNull();
+  });
+
+  it('survives the spec-legal INLINE LOCALE MAP form on a query that MISSES', async () => {
+    apps.value = [MAPPED, OPS];
+    const { unmount } = renderPage();
+
+    // The row heading falls back to the app's `name`, because
+    // `resolveKeyedI18nLabel` speaks the keyed form and not the map form
+    // (objectui#4163 is the audit that widens it). That limitation belongs to
+    // the DISPLAY path; what this case pins is that search now shares it
+    // exactly instead of crashing on the same input.
+    expect(screen.getByText('mapped_app')).toBeInTheDocument();
+
+    // ⚠️ The query must MISS every app, and that is load-bearing rather than
+    // incidental: the filter is a chain of `||`, so a query the NAME satisfies
+    // short-circuits before the label is ever read. Searching `mapped` here
+    // passes even on the unfixed page — `'mapped_app'.includes('mapped')` is
+    // true and the throwing term never runs. A red-first case for this filter
+    // has to hand it a query no earlier term can answer.
+    await search('zzz');
+
+    expect(screen.getByTestId('no-apps-message')).toBeInTheDocument();
+    unmount();
+
+    // …and the parity half, on a query that DOES hit: what the heading shows
+    // is what the filter matches. When #4163 teaches the resolver the map
+    // form, both halves move together instead of drifting apart again.
+    renderPage();
+    await search('mapped');
+    expect(screen.getByTestId('app-card-mapped_app')).toBeInTheDocument();
+    expect(screen.queryByTestId('app-card-ops_app')).toBeNull();
+  });
+
+  it('loads every app fine with an EMPTY query — which is why this hid until a keystroke', () => {
+    // Green before this card too, and deliberately so: `if (!searchQuery)
+    // return true` returns before either read, so the page mounted perfectly
+    // with the very metadata that killed it one character later. Pinning the
+    // short-circuit keeps that asymmetry from being "fixed" away.
+    apps.value = [OPS, KEYED, MAPPED];
+    renderPage();
+
+    expect(screen.getByTestId('app-card-ops_app')).toBeInTheDocument();
+    expect(screen.getByTestId('app-card-sales_app')).toBeInTheDocument();
+    expect(screen.getByTestId('app-card-mapped_app')).toBeInTheDocument();
+  });
+});
+
+describe('plain-string labels filter exactly as before', () => {
+  // The control, and it holds NO non-string label on purpose: one keyed app
+  // anywhere in `apps` would take the whole filter down pre-change and this
+  // describe would go red with the others, which is exactly the asymmetry it
+  // exists to demonstrate. Every case here is GREEN before and after.
+  it('still matches on name, on label alone, and on description alone', async () => {
+    apps.value = [OPS, WEB];
+
+    const { unmount } = renderPage();
+    await search('ops');
+    expect(screen.getByTestId('app-card-ops_app')).toBeInTheDocument();
+    expect(screen.queryByTestId('app-card-web_app')).toBeNull();
+    unmount();
+
+    // The LABEL term on its own — `Marketing Site` is reachable from neither
+    // `web_app` nor `Public brochure`, so this is the line the card rewrote.
+    const second = renderPage();
+    await search('marketing');
+    expect(screen.getByTestId('app-card-web_app')).toBeInTheDocument();
+    expect(screen.queryByTestId('app-card-ops_app')).toBeNull();
+    second.unmount();
+
+    // The DESCRIPTION term on its own — the other rewritten line.
+    const third = renderPage();
+    await search('invoic');
+    expect(screen.getByTestId('app-card-ops_app')).toBeInTheDocument();
+    expect(screen.queryByTestId('app-card-web_app')).toBeNull();
+    third.unmount();
+
+    renderPage();
+    await search('zzz');
+    expect(screen.getByTestId('no-apps-message')).toBeInTheDocument();
+  });
+
+  it('is case-insensitive, as it always was', async () => {
+    apps.value = [OPS, WEB];
+    renderPage();
+
+    await search('MARKETING');
+
+    expect(screen.getByTestId('app-card-web_app')).toBeInTheDocument();
+    expect(screen.queryByTestId('app-card-ops_app')).toBeNull();
+  });
+});