diff --git a/src/web/public/settings-ui.js b/src/web/public/settings-ui.js
index 5d22a22b..305390ba 100644
--- a/src/web/public/settings-ui.js
+++ b/src/web/public/settings-ui.js
@@ -2368,6 +2368,10 @@ Object.assign(CodemanApp.prototype, {
     this.closeAppSettings();
     this.cancelCloseSession();
     this.closeTokenStats();
+    // Mobile header utility tray closes alongside the other overlays so Escape
+    // (and any future closeAllPanels caller) dismisses it like every other panel
+    // instead of leaving it pinned open with only its toggle to close it.
+    this.closeMobileHeaderUtilities?.();
     document.getElementById('monitorPanel').classList.remove('open');
     // Collapse subagents panel (don't hide it permanently)
     const subagentsPanel = document.getElementById('subagentsPanel');
diff --git a/test/command-palette-ui.test.ts b/test/command-palette-ui.test.ts
index 35bf10e8..e7c38115 100644
--- a/test/command-palette-ui.test.ts
+++ b/test/command-palette-ui.test.ts
@@ -213,3 +213,33 @@ describe('Command-K session palette', () => {
     expect(app.selectSession).toHaveBeenCalledWith('sess-alpha');
   });
 });
+
+describe('panel close helpers', () => {
+  it('closes panels when the mobile header helper is unavailable', () => {
+    const CodemanApp = function CodemanApp(this: any) {};
+    const elements: Record<string, any> = {
+      monitorPanel: { classList: { remove: vi.fn() } },
+      subagentsPanel: { classList: { remove: vi.fn() } },
+    };
+    const context = vm.createContext({
+      CodemanApp,
+      document: {
+        getElementById: (id: string) => elements[id] ?? null,
+      },
+      console,
+    });
+
+    const settingsUi = readFileSync(resolve(import.meta.dirname, '../src/web/public/settings-ui.js'), 'utf8');
+    vm.runInContext(settingsUi, context, { filename: 'settings-ui.js' });
+
+    const app = new (CodemanApp as any)();
+    app.closeSessionOptions = vi.fn();
+    app.closeAppSettings = vi.fn();
+    app.cancelCloseSession = vi.fn();
+    app.closeTokenStats = vi.fn();
+
+    expect(() => app.closeAllPanels()).not.toThrow();
+    expect(elements.monitorPanel.classList.remove).toHaveBeenCalledWith('open');
+    expect(elements.subagentsPanel.classList.remove).toHaveBeenCalledWith('open');
+  });
+});