diff --git a/apps/desktop-tauri/src/components/CodexAccountsMenu.test.tsx b/apps/desktop-tauri/src/components/CodexAccountsMenu.test.tsx
index 9b66d809d3..607acd0221 100644
--- a/apps/desktop-tauri/src/components/CodexAccountsMenu.test.tsx
+++ b/apps/desktop-tauri/src/components/CodexAccountsMenu.test.tsx
@@ -112,6 +112,35 @@ describe("CodexAccountsMenu", () => {
     expect((fills[1] as HTMLElement).style.width).toBe("70%");
   });
 
+  it("renders a usage bar from a weekly-only snapshot (primaryWindow: null)", async () => {
+    const weeklyOnly: CodexAccountUsageSnapshot = {
+      email: "weekly@example.com",
+      providerAccountId: null,
+      plan: "pro",
+      allowed: true,
+      limitReached: false,
+      primaryWindow: null,
+      secondaryWindow: {
+        usedPercent: 42,
+        resetAt: null,
+        limitWindowSeconds: 604800,
+      },
+      credits: null,
+      updatedAt: "2024-01-01T00:00:00Z",
+    };
+    const { container } = renderMenu(false, {
+      accounts: [account("1", { source: "ambient" }), account("2")],
+      snapshots: { "1": weeklyOnly },
+    });
+    await screen.findByText("user-1@example.com");
+
+    const fills = container.querySelectorAll(
+      ".codex-menu-accounts__bar-fill",
+    );
+    expect(fills.length).toBe(1);
+    expect((fills[0] as HTMLElement).style.width).toBe("42%");
+  });
+
   it("switches an account and kicks a provider refresh", async () => {
     renderMenu(false, {
       accounts: [account("1", { source: "ambient" }), account("2")],
diff --git a/apps/desktop-tauri/src/components/CodexAccountsMenu.tsx b/apps/desktop-tauri/src/components/CodexAccountsMenu.tsx
index a79d8d6fa4..aa2b8f9ff9 100644
--- a/apps/desktop-tauri/src/components/CodexAccountsMenu.tsx
+++ b/apps/desktop-tauri/src/components/CodexAccountsMenu.tsx
@@ -93,8 +93,15 @@ export default function CodexAccountsMenu({ hideEmail }: { hideEmail: boolean })
       <ul className="codex-menu-accounts__list">
         {accounts.map((account) => {
           const snapshot = snapshots[account.id];
-          const pct = snapshot?.primaryWindow
-            ? Math.round(snapshot.primaryWindow.usedPercent)
+          // Prefer the primary (session) window, but accounts whose backend
+          // only returns a weekly window have primaryWindow: null — fall back
+          // to the next filled window in canonical order (primary →
+          // secondary; the account-snapshot bridge carries no tertiary or
+          // extra rate windows) so the usage bar still renders.
+          const usageWindow =
+            snapshot?.primaryWindow ?? snapshot?.secondaryWindow ?? null;
+          const pct = usageWindow
+            ? Math.round(usageWindow.usedPercent)
             : null;
           const label =
             account.nickname ??
diff --git a/apps/desktop-tauri/src/styles.css b/apps/desktop-tauri/src/styles.css
index 04a744c8ec..9b2b4096d2 100644
--- a/apps/desktop-tauri/src/styles.css
+++ b/apps/desktop-tauri/src/styles.css
@@ -2484,6 +2484,31 @@ body:has(.tray-panel-reveal) {
   color: var(--provider-status-error);
 }
 
+/* CodexAccountsSection cards sit in the fixed 720px settings window next to a
+   3-button actions row (~242px). A long account email has no break
+   opportunities, so without containment it overflows the info column and
+   paints over the actions. Ellipsize the info column/title instead, and pin
+   the actions row in place with flex-shrink: 0 + nowrap. */
+.codex-accounts-card .credential-card__info {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.codex-accounts-card .credential-card__info strong {
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.codex-accounts-card .credential-card__actions {
+  flex-shrink: 0;
+  flex-wrap: nowrap;
+  white-space: nowrap;
+}
+
 .provider-detail-pace__stage {
   font-size: 0.86rem;
   font-weight: 600;
diff --git a/apps/desktop-tauri/src/surfaces/settings/providers/sections/credentials/CodexAccountsSection.test.tsx b/apps/desktop-tauri/src/surfaces/settings/providers/sections/credentials/CodexAccountsSection.test.tsx
index 1b5396ba4d..38a2c39450 100644
--- a/apps/desktop-tauri/src/surfaces/settings/providers/sections/credentials/CodexAccountsSection.test.tsx
+++ b/apps/desktop-tauri/src/surfaces/settings/providers/sections/credentials/CodexAccountsSection.test.tsx
@@ -1,3 +1,4 @@
+import { readFileSync } from "node:fs";
 import { act, render, screen, waitFor } from "@testing-library/react";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import type {
@@ -139,4 +140,54 @@ describe("CodexAccountsSection", () => {
     });
     expect(tauriMocks.codexAccountRestartDesktop).toHaveBeenCalledTimes(1);
   });
+});
+
+// Layout containment cannot be asserted via jsdom (vitest runs with
+// `css: false`, so styles.css is never applied and computed styles are
+// empty). Assert the stylesheet rules directly instead: these are the exact
+// properties that keep a long account email from painting over the actions
+// row at the fixed 720px settings window. import.meta.dirname (not .url)
+// survives vitest's jsdom transform as the real on-disk directory.
+if (!import.meta.dirname) {
+  throw new Error("import.meta.dirname unavailable to vitest runner");
+}
+const stylesSource = readFileSync(
+  `${import.meta.dirname}/../../../../../styles.css`,
+  "utf8",
+);
+
+function ruleBlock(source: string, selector: string): string {
+  const escaped = selector.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+  const match = source.match(new RegExp(`${escaped}\\s*\\{([^}]*)\\}`));
+  expect(match).not.toBeNull();
+  return match![1];
+}
+
+describe("CodexAccountsSection containment styles", () => {
+  it("ellipsizes the info column and pins the actions row inside the card", () => {
+    const info = ruleBlock(
+      stylesSource,
+      ".codex-accounts-card .credential-card__info",
+    );
+    expect(info).toContain("min-width: 0");
+    expect(info).toContain("overflow: hidden");
+    expect(info).toContain("text-overflow: ellipsis");
+    expect(info).toContain("white-space: nowrap");
+
+    const title = ruleBlock(
+      stylesSource,
+      ".codex-accounts-card .credential-card__info strong",
+    );
+    expect(title).toContain("max-width: 100%");
+    expect(title).toContain("overflow: hidden");
+    expect(title).toContain("text-overflow: ellipsis");
+    expect(title).toContain("white-space: nowrap");
+
+    const actions = ruleBlock(
+      stylesSource,
+      ".codex-accounts-card .credential-card__actions",
+    );
+    expect(actions).toContain("flex-shrink: 0");
+    expect(actions).toContain("nowrap");
+  });
 });
\ No newline at end of file
diff --git a/apps/desktop-tauri/src/test/node-builtins.d.ts b/apps/desktop-tauri/src/test/node-builtins.d.ts
new file mode 100644
index 0000000000..0f66cc2a63
--- /dev/null
+++ b/apps/desktop-tauri/src/test/node-builtins.d.ts
@@ -0,0 +1,16 @@
+// Minimal ambient declarations for the Node builtins used by test files.
+// This workspace does not depend on @types/node; declaring only the touched
+// signatures keeps tsc honest without pulling the full Node type surface.
+// Delete this file if @types/node is ever added (the real declarations
+// supersede these).
+declare module "node:fs" {
+  export function readFileSync(path: string, encoding: "utf8"): string;
+}
+
+// Node 20.11+ / vite-node inject import.meta.dirname|filename; those types
+// also come from @types/node, so declare the touched member here. Note:
+// import.meta.url is NOT reliable under vitest's jsdom transform (it can
+// resolve relative URLs against the dev-server origin) — use dirname instead.
+interface ImportMeta {
+  readonly dirname?: string;
+}