diff --git a/apps/dashboard/src/SettingsPanel.tsx b/apps/dashboard/src/SettingsPanel.tsx
index 34060c0..6d56ef2 100644
--- a/apps/dashboard/src/SettingsPanel.tsx
+++ b/apps/dashboard/src/SettingsPanel.tsx
@@ -210,15 +210,7 @@ function SettingsApplyBar({ onRestartStack }: { onRestartStack: () => void }) {
       </div>
       <button
         className="settings-restart"
-        onClick={() => {
-          if (
-            window.confirm(
-              '스택을 재시작하면 진행 중인 모든 에이전트 작업이 중단됩니다. 진행할까요?',
-            )
-          ) {
-            onRestartStack();
-          }
-        }}
+        onClick={onRestartStack}
         type="button"
       >
         스택 재시작
diff --git a/apps/dashboard/src/styles.css b/apps/dashboard/src/styles.css
index 0d5b37c..71a3425 100644
--- a/apps/dashboard/src/styles.css
+++ b/apps/dashboard/src/styles.css
@@ -771,7 +771,7 @@ button:disabled {
 }
 
 .settings-nav small {
-  color: var(--muted-soft);
+  color: var(--muted);
   font-size: 11px;
 }
 
diff --git a/bun.lock b/bun.lock
index 1fe7ae6..a3be193 100644
--- a/bun.lock
+++ b/bun.lock
@@ -20,6 +20,7 @@
         "zod": "^4.3.6",
       },
       "devDependencies": {
+        "@axe-core/playwright": "^4.11.3",
         "@eslint/js": "^10.0.1",
         "@types/better-sqlite3": "^7.6.13",
         "@types/bun": "^1.3.11",
@@ -42,6 +43,8 @@
     },
   },
   "packages": {
+    "@axe-core/playwright": ["@axe-core/playwright@4.11.3", "", { "dependencies": { "axe-core": "~4.11.4" }, "peerDependencies": { "playwright-core": ">= 1.0.0" } }, "sha512-h/kfksv4F0cVIDlKpT4700OehdRgpvuVskuQ2nb7/JmtWUXpe9ftHAPtwyXGvVSsa6SJ64A9ER7Zrzc/sIvC4w=="],
+
     "@babel/helper-string-parser": ["@babel/helper-string-parser@7.27.1", "", {}, "sha512-qMlSxKbpRlAridDExk92nSobyDdpPijUq2DW6oDnUqd0iOGxmQjyqhMIihI9+zv4LPyZdRje2cavWPbCbWm3eA=="],
 
     "@babel/helper-validator-identifier": ["@babel/helper-validator-identifier@7.28.5", "", {}, "sha512-qSs4ifwzKJSV39ucNjsvc6WVHs6b7S03sOh2OcHF9UHfVPqWWALUsNUVzhSBiItjRZoLHx7nIarVjqKVusUZ1Q=="],
@@ -348,6 +351,8 @@
 
     "atomic-sleep": ["atomic-sleep@1.0.0", "", {}, "sha512-kNOjDqAh7px0XWNI+4QbzoiR/nTkHAWNud2uvnJquD1/x5a7EQZMJT0AczqK0Qn67oY/TTQ1LbUKajZpp3I9tQ=="],
 
+    "axe-core": ["axe-core@4.11.4", "", {}, "sha512-KunSNx+TVpkAw/6ULfhnx+HWRecjqZGTOyquAoWHYLRSdK1tB5Ihce1ZW+UY3fj33bYAFWPu7W/GRSmmrCGuxA=="],
+
     "bail": ["bail@2.0.2", "", {}, "sha512-0xO6mYd7JB2YesxDKplafRpsiOzPt9V02ddPCLbY1xYGPOX24NTyN50qnUxgCPcSoYMhKpAuBTjQoRZCAkUDRw=="],
 
     "balanced-match": ["balanced-match@4.0.4", "", {}, "sha512-BLrgEcRTwX2o6gGxGOCNyMvGSp35YofuYzw9h1IMTRmKqttAZZVU67bdb9Pr2vUHA8+j3i2tJfjO6C6+4myGTA=="],
diff --git a/package.json b/package.json
index ba4c290..ba5493d 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     "dashboard:dev": "vite --config apps/dashboard/vite.config.ts",
     "dashboard:build": "vite build --config apps/dashboard/vite.config.ts",
     "dashboard:preview": "vite preview --config apps/dashboard/vite.config.ts",
+    "dashboard:ux": "bun scripts/dashboard-ux.ts",
     "install:runners": "bun install --frozen-lockfile --cwd runners/shared && bun install --frozen-lockfile --cwd runners/agent-runner && bun install --frozen-lockfile --cwd runners/codex-runner",
     "build:runners": "bun run install:runners && bun run --cwd runners/shared build && bun run --cwd runners/agent-runner build && bun run --cwd runners/codex-runner build",
     "build:all": "bun run build && bun run dashboard:build && bun run build:runners",
@@ -47,6 +48,7 @@
     "zod": "^4.3.6"
   },
   "devDependencies": {
+    "@axe-core/playwright": "^4.11.3",
     "@eslint/js": "^10.0.1",
     "@types/better-sqlite3": "^7.6.13",
     "@types/bun": "^1.3.11",
diff --git a/scripts/dashboard-ux.ts b/scripts/dashboard-ux.ts
new file mode 100644
index 0000000..7af7fa4
--- /dev/null
+++ b/scripts/dashboard-ux.ts
@@ -0,0 +1,363 @@
+import { AxeBuilder } from '@axe-core/playwright';
+import { chromium, type Browser, type Page, type Route } from 'playwright';
+import assert from 'node:assert/strict';
+import path from 'node:path';
+import process from 'node:process';
+import { createServer, type ViteDevServer } from 'vite';
+
+interface MockApiState {
+  codexFeatures: { goals: boolean };
+  codexFeatureUpdates: number;
+  restartRequests: number;
+}
+
+const seriousImpacts = new Set(['serious', 'critical']);
+
+async function main() {
+  const server = await startDashboardServer();
+  const browser = await chromium.launch();
+
+  try {
+    const baseUrl = server.resolvedUrls?.local[0] ?? 'http://127.0.0.1:5175/';
+
+    await runScenario(
+      'settings nav keeps hash route stable',
+      browser,
+      baseUrl,
+      async (page) => {
+        await openSettings(page, baseUrl);
+
+        const originalUrl = page.url();
+        assert.equal(originalUrl.endsWith('/#/settings'), true);
+        assert.equal(
+          await page.locator('.settings-nav a[href^="#settings-"]').count(),
+          0,
+        );
+
+        await page
+          .locator(
+            '.settings-nav button[data-settings-target="settings-codex"]',
+          )
+          .click();
+        await page.waitForTimeout(150);
+        assert.equal(page.url(), originalUrl);
+        await assertVisible(page.locator('.settings-panel'));
+        await assertVisible(page.locator('#settings-codex'));
+
+        await page
+          .locator(
+            '.settings-nav button[data-settings-target="settings-accounts"]',
+          )
+          .click();
+        await page.waitForTimeout(150);
+        assert.equal(page.url(), originalUrl);
+        await assertVisible(page.locator('.settings-panel'));
+        await assertVisible(page.locator('#settings-accounts'));
+
+        await assertNoSeriousA11yViolations(page);
+      },
+    );
+
+    await runScenario(
+      'codex goal toggle persists and explains restart',
+      browser,
+      baseUrl,
+      async (page, state) => {
+        await openSettings(page, baseUrl);
+
+        const goalToggle = page.getByRole('checkbox', { name: /\/goal/ });
+        await assertVisible(goalToggle);
+        assert.equal(await goalToggle.isChecked(), false);
+
+        await goalToggle.click();
+        await page
+          .getByText('저장됨. 적용하려면 상단의 스택 재시작을 눌러 주세요.')
+          .waitFor();
+
+        assert.equal(await goalToggle.isChecked(), true);
+        assert.equal(state.codexFeatures.goals, true);
+        assert.equal(state.codexFeatureUpdates, 1);
+
+        await assertNoSeriousA11yViolations(page);
+      },
+    );
+
+    await runScenario(
+      'restart action is singular and guarded',
+      browser,
+      baseUrl,
+      async (page, state) => {
+        const dialogMessages: string[] = [];
+        page.on('dialog', async (dialog) => {
+          dialogMessages.push(dialog.message());
+          await dialog.accept();
+        });
+
+        await openSettings(page, baseUrl);
+
+        const restartButtons = page.getByRole('button', {
+          name: '스택 재시작',
+        });
+        assert.equal(await restartButtons.count(), 1);
+
+        await restartButtons.first().click();
+        await page.waitForTimeout(250);
+
+        assert.equal(dialogMessages.length, 1);
+        assert.equal(state.restartRequests, 1);
+
+        await assertNoSeriousA11yViolations(page);
+      },
+    );
+
+    console.log('dashboard:ux passed');
+  } finally {
+    await browser.close();
+    await server.close();
+  }
+}
+
+async function startDashboardServer(): Promise<ViteDevServer> {
+  const port = Number(process.env.DASHBOARD_UX_PORT ?? 5175);
+  const server = await createServer({
+    configFile: path.resolve('apps/dashboard/vite.config.ts'),
+    server: {
+      host: '127.0.0.1',
+      port,
+      strictPort: true,
+    },
+  });
+  await server.listen();
+  return server;
+}
+
+async function runScenario(
+  name: string,
+  browser: Browser,
+  baseUrl: string,
+  run: (page: Page, state: MockApiState) => Promise<void>,
+) {
+  const context = await browser.newContext({
+    viewport: { width: 1280, height: 720 },
+  });
+  const state = createMockApiState();
+  await context.route('**/api/**', (route) => handleMockApi(route, state));
+  const page = await context.newPage();
+
+  try {
+    await run(page, state);
+    console.log(`✓ ${name}`);
+  } finally {
+    await context.close();
+  }
+}
+
+function createMockApiState(): MockApiState {
+  return {
+    codexFeatures: { goals: false },
+    codexFeatureUpdates: 0,
+    restartRequests: 0,
+  };
+}
+
+async function openSettings(page: Page, baseUrl: string) {
+  await page.goto(new URL('/#/settings', baseUrl).toString(), {
+    waitUntil: 'networkidle',
+  });
+  await assertVisible(page.locator('.settings-panel'));
+  await assertVisible(page.locator('.settings-hero'));
+  await assertVisible(page.locator('.settings-nav'));
+  await assertVisible(page.locator('.settings-apply-bar'));
+  assert.equal(
+    await page.getByRole('button', { name: '스택 재시작' }).count(),
+    1,
+  );
+}
+
+async function assertVisible(locator: ReturnType<Page['locator']>) {
+  await locator.waitFor({ state: 'visible', timeout: 5_000 });
+}
+
+async function assertNoSeriousA11yViolations(page: Page) {
+  const results = await new AxeBuilder({ page })
+    .include('.settings-panel')
+    .analyze();
+  const serious = results.violations.filter((violation) =>
+    seriousImpacts.has(violation.impact ?? ''),
+  );
+
+  assert.deepEqual(
+    serious.map((violation) => ({
+      id: violation.id,
+      impact: violation.impact,
+      nodes: violation.nodes.map((node) => node.target),
+    })),
+    [],
+  );
+}
+
+async function handleMockApi(route: Route, state: MockApiState) {
+  const request = route.request();
+  const url = new URL(request.url());
+  const method = request.method();
+
+  if (method === 'GET' && url.pathname === '/api/overview') {
+    await fulfillJson(route, {
+      generatedAt: new Date(0).toISOString(),
+      services: [],
+      rooms: { total: 0, active: 0, waiting: 0, inactive: 0 },
+      tasks: {
+        total: 0,
+        active: 0,
+        paused: 0,
+        completed: 0,
+        watchers: { active: 0, paused: 0, completed: 0 },
+      },
+      usage: { rows: [], fetchedAt: null },
+      operations: { serviceRestarts: [] },
+      inbox: [],
+    });
+    return;
+  }
+
+  if (method === 'GET' && url.pathname === '/api/status-snapshots') {
+    await fulfillJson(route, []);
+    return;
+  }
+
+  if (method === 'GET' && url.pathname === '/api/tasks') {
+    await fulfillJson(route, []);
+    return;
+  }
+
+  if (method === 'GET' && url.pathname === '/api/rooms-timeline') {
+    await fulfillJson(route, {});
+    return;
+  }
+
+  if (method === 'GET' && url.pathname === '/api/settings/models') {
+    await fulfillJson(route, {
+      owner: { model: 'codex', effort: 'high' },
+      reviewer: { model: 'claude', effort: 'medium' },
+      arbiter: { model: 'claude', effort: 'medium' },
+    });
+    return;
+  }
+
+  if (method === 'GET' && url.pathname === '/api/settings/fast-mode') {
+    await fulfillJson(route, { codex: false, claude: false });
+    return;
+  }
+
+  if (url.pathname === '/api/settings/codex-features') {
+    if (method === 'GET') {
+      await fulfillJson(route, state.codexFeatures);
+      return;
+    }
+    if (method === 'PUT' || method === 'PATCH') {
+      const body = parseJsonBody(request.postData());
+      if (typeof body.goals === 'boolean') {
+        state.codexFeatures = { goals: body.goals };
+        state.codexFeatureUpdates += 1;
+      }
+      await fulfillJson(route, state.codexFeatures);
+      return;
+    }
+  }
+
+  if (method === 'GET' && url.pathname === '/api/settings/moa') {
+    await fulfillJson(route, {
+      enabled: true,
+      referenceModels: ['kimi', 'glm'],
+      models: [
+        {
+          name: 'kimi',
+          enabled: true,
+          model: 'kimi-k2',
+          baseUrl: 'https://api.moonshot.ai',
+          apiFormat: 'anthropic',
+          apiKeyConfigured: true,
+          lastStatus: null,
+        },
+        {
+          name: 'glm',
+          enabled: true,
+          model: 'glm-4.6',
+          baseUrl: 'https://open.bigmodel.cn/api/paas/v4',
+          apiFormat: 'anthropic',
+          apiKeyConfigured: true,
+          lastStatus: null,
+        },
+      ],
+    });
+    return;
+  }
+
+  if (method === 'GET' && url.pathname === '/api/settings/accounts') {
+    await fulfillJson(route, {
+      claude: [
+        {
+          index: 0,
+          expiresAt: null,
+          scopes: [],
+          subscriptionType: 'pro',
+          rateLimitTier: 'default',
+          exists: true,
+        },
+      ],
+      codex: [
+        {
+          index: 0,
+          accountId: 'acct_test',
+          email: 'codex@example.com',
+          planType: 'plus',
+          subscriptionUntil: '2099-01-01T00:00:00.000Z',
+          subscriptionLastChecked: '2026-01-01T00:00:00.000Z',
+          exists: true,
+        },
+      ],
+      codexCurrentIndex: 0,
+    });
+    return;
+  }
+
+  if (method === 'POST' && url.pathname === '/api/services/stack/actions') {
+    state.restartRequests += 1;
+    await fulfillJson(route, {
+      ok: true,
+      restart: {
+        id: 'restart-test',
+        target: 'stack',
+        requestedAt: new Date(0).toISOString(),
+        completedAt: null,
+        status: 'running',
+        services: ['ejclaw'],
+      },
+    });
+    return;
+  }
+
+  await fulfillJson(
+    route,
+    { error: `Unhandled mock route ${method} ${url.pathname}` },
+    404,
+  );
+}
+
+function parseJsonBody(body: string | null): Record<string, unknown> {
+  if (!body) return {};
+  const parsed = JSON.parse(body) as unknown;
+  return parsed && typeof parsed === 'object'
+    ? (parsed as Record<string, unknown>)
+    : {};
+}
+
+async function fulfillJson(route: Route, body: unknown, status = 200) {
+  await route.fulfill({
+    status,
+    contentType: 'application/json',
+    body: JSON.stringify(body),
+  });
+}
+
+await main();