diff --git a/src/Web/StellaOps.Web/tests/e2e/unified-search-exhaustive-matrix.e2e.spec.ts b/src/Web/StellaOps.Web/tests/e2e/unified-search-exhaustive-matrix.e2e.spec.ts
new file mode 100644
index 000000000..668a9b3dd
--- /dev/null
+++ b/src/Web/StellaOps.Web/tests/e2e/unified-search-exhaustive-matrix.e2e.spec.ts
@@ -0,0 +1,417 @@
+import { expect, test, type Locator, type Page } from '@playwright/test';
+import {
+  buildResponse,
+  setupAuthenticatedSession,
+  setupBasicMocks,
+} from './unified-search-fixtures';
+
+type MatrixDomain =
+  | 'findings'
+  | 'vex'
+  | 'policy'
+  | 'knowledge'
+  | 'graph'
+  | 'timeline'
+  | 'ops_memory'
+  | 'platform';
+
+interface MatrixKeyword {
+  keyword: string;
+  domain: MatrixDomain;
+}
+
+const intents = ['show', 'list', 'find', 'explain'] as const;
+
+const qualifiers = [
+  'in production',
+  'in staging',
+  'in dev',
+  'from last 24h',
+  'from last 7d',
+  'for api-gateway',
+  'for payments-service',
+  'with critical severity',
+  'with policy impact',
+  'with remediation steps',
+] as const;
+
+const keywords: readonly MatrixKeyword[] = [
+  { keyword: 'CVE findings', domain: 'findings' },
+  { keyword: 'reachable vulnerabilities', domain: 'findings' },
+  { keyword: 'secret detections', domain: 'findings' },
+  { keyword: 'VEX not affected statements', domain: 'vex' },
+  { keyword: 'VEX affected assertions', domain: 'vex' },
+  { keyword: 'VEX under investigation records', domain: 'vex' },
+  { keyword: 'policy deny rules', domain: 'policy' },
+  { keyword: 'policy exceptions', domain: 'policy' },
+  { keyword: 'policy gate failures', domain: 'policy' },
+  { keyword: 'deployment docs', domain: 'knowledge' },
+  { keyword: 'api endpoint contracts', domain: 'knowledge' },
+  { keyword: 'doctor health checks', domain: 'knowledge' },
+  { keyword: 'reachability graph paths', domain: 'graph' },
+  { keyword: 'dependency graph nodes', domain: 'graph' },
+  { keyword: 'blast radius graph edges', domain: 'graph' },
+  { keyword: 'incident timelines', domain: 'timeline' },
+  { keyword: 'promotion history events', domain: 'timeline' },
+  { keyword: 'audit timeline markers', domain: 'timeline' },
+  { keyword: 'job scheduler runs', domain: 'ops_memory' },
+  { keyword: 'task runner outcomes', domain: 'ops_memory' },
+  { keyword: 'ops memory traces', domain: 'ops_memory' },
+  { keyword: 'platform integrations', domain: 'platform' },
+  { keyword: 'environment readiness', domain: 'platform' },
+  { keyword: 'release orchestration status', domain: 'platform' },
+  { keyword: 'runtime policy drift', domain: 'policy' },
+  { keyword: 'sbom provenance docs', domain: 'knowledge' },
+  { keyword: 'scanner finding feed', domain: 'findings' },
+  { keyword: 'vulnerability exploitability records', domain: 'findings' },
+  { keyword: 'timeline causality links', domain: 'timeline' },
+  { keyword: 'graph risk pivots', domain: 'graph' },
+] as const;
+
+const matrixQueries = buildQueryMatrix();
+const matrixBatches = chunkQueries(matrixQueries, 200);
+
+test.describe('Unified Search - Exhaustive Query Matrix', () => {
+  test('covers a matrix larger than 1000 query types', async () => {
+    expect(matrixQueries.length).toBeGreaterThan(1000);
+    expect(matrixBatches.length).toBeGreaterThanOrEqual(6);
+  });
+
+  for (const [batchIndex, batch] of matrixBatches.entries()) {
+    test(`batch ${batchIndex + 1}/${matrixBatches.length} executes ${batch.length} search types with 100% success`, async ({ page }) => {
+      test.setTimeout(4 * 60 * 1000);
+
+      await setupBasicMocks(page);
+      await setupAuthenticatedSession(page);
+      await mockSearchSupportEndpoints(page);
+      await mockMatrixSearchApi(page);
+
+      await page.goto('/security/triage');
+      await expect(page.locator('aside.sidebar')).toBeVisible({ timeout: 15_000 });
+
+      const searchInput = page.locator('app-global-search input[type="text"]');
+      await searchInput.focus();
+      await expect(page.locator('.search__results')).toBeVisible({ timeout: 10_000 });
+
+      const failures: string[] = [];
+
+      for (const query of batch) {
+        const normalizedQuery = query.trim();
+        const querySubmitted = await submitQueryAndWaitForSearchResponse(
+          page,
+          searchInput,
+          normalizedQuery,
+        );
+        if (!querySubmitted) {
+          failures.push(`${normalizedQuery} (no search response)`);
+          continue;
+        }
+
+        const firstCard = page.locator('app-entity-card').first();
+        try {
+          await firstCard.waitFor({ state: 'visible', timeout: 4_000 });
+        } catch {
+          failures.push(`${normalizedQuery} (no visible result card)`);
+        }
+
+        await page.waitForTimeout(25);
+      }
+
+      // eslint-disable-next-line no-console
+      console.log(`[matrix] batch ${batchIndex + 1}/${matrixBatches.length} processed ${batch.length} queries`);
+
+      expect(
+        failures,
+        `Failed queries: ${failures.slice(0, 20).join(' | ')}`,
+      ).toEqual([]);
+    });
+  }
+});
+
+function buildQueryMatrix(): string[] {
+  const generated: string[] = [];
+  for (const keyword of keywords) {
+    for (const intent of intents) {
+      for (const qualifier of qualifiers) {
+        generated.push(`${intent} ${keyword.keyword} ${qualifier}`);
+      }
+    }
+  }
+
+  return Array.from(new Set(generated));
+}
+
+function chunkQueries(values: readonly string[], size: number): string[][] {
+  const output: string[][] = [];
+  for (let index = 0; index < values.length; index += size) {
+    output.push(values.slice(index, index + size));
+  }
+
+  return output;
+}
+
+async function mockSearchSupportEndpoints(page: Page): Promise<void> {
+  await page.route('**/api/v1/advisory-ai/search/history**', async (route) => {
+    const method = route.request().method().toUpperCase();
+    if (method === 'GET') {
+      return route.fulfill({
+        status: 200,
+        contentType: 'application/json',
+        body: JSON.stringify({ entries: [] }),
+      });
+    }
+
+    return route.fulfill({
+      status: 200,
+      contentType: 'application/json',
+      body: JSON.stringify({}),
+    });
+  });
+
+  await page.route('**/api/v1/advisory-ai/search/analytics**', async (route) =>
+    route.fulfill({
+      status: 202,
+      contentType: 'application/json',
+      body: JSON.stringify({ accepted: true }),
+    }));
+
+  await page.route('**/api/v1/advisory-ai/search/feedback**', async (route) =>
+    route.fulfill({
+      status: 202,
+      contentType: 'application/json',
+      body: JSON.stringify({ accepted: true }),
+    }));
+}
+
+async function mockMatrixSearchApi(page: Page): Promise<void> {
+  await page.route('**/search/query**', async (route) => {
+    const payload = route.request().postDataJSON() as { q?: string };
+    const query = String(payload?.q ?? '').trim();
+    const domain = classifyDomain(query);
+    const response = buildResponse(
+      query,
+      [buildCard(domain, query)],
+      {
+        summary: `${domain} result for "${query}".`,
+        template: `${domain}_summary`,
+        confidence: 'high',
+        sourceCount: 1,
+        domainsCovered: [domain],
+      },
+    );
+
+    return route.fulfill({
+      status: 200,
+      contentType: 'application/json',
+      body: JSON.stringify(response),
+    });
+  });
+}
+
+async function submitQueryAndWaitForSearchResponse(
+  page: Page,
+  searchInput: Locator,
+  query: string,
+): Promise<boolean> {
+  for (let attempt = 0; attempt < 6; attempt++) {
+    await searchInput.focus();
+
+    const responsePromise = page.waitForResponse(
+      (response) =>
+        response.url().includes('/api/v1/search/query') &&
+        response.request().method().toUpperCase() === 'POST',
+      { timeout: 10_000 },
+    );
+
+    if (attempt === 0) {
+      await searchInput.fill(query);
+    } else if (attempt === 1) {
+      // Retry path: perturb input to force ngModel/debounce pipeline to emit again.
+      await searchInput.fill(`${query} `);
+      await searchInput.press('Backspace');
+    } else {
+      // Fallback retry path: clear and re-enter query.
+      await searchInput.fill('');
+      if (attempt === 4) {
+        await searchInput.type(query, { delay: 8 });
+      } else {
+        await searchInput.fill(query);
+      }
+    }
+
+    try {
+      await responsePromise;
+      return true;
+    } catch {
+      await page.waitForTimeout(80);
+    }
+  }
+
+  return false;
+}
+
+function classifyDomain(query: string): MatrixDomain {
+  const normalized = query.toLowerCase();
+  const keyword = keywords.find((entry) => normalized.includes(entry.keyword.toLowerCase()));
+  return keyword?.domain ?? 'knowledge';
+}
+
+function buildCard(domain: MatrixDomain, query: string) {
+  const normalizedKey = query.toLowerCase().replace(/[^a-z0-9]+/g, '-').replace(/(^-|-$)/g, '');
+  const base = {
+    entityKey: `${domain}:${normalizedKey || 'query'}`,
+    title: `${domain.toUpperCase()} result for ${query}`,
+    snippet: `Deterministic ${domain} fixture for ${query}.`,
+    score: 0.9,
+    isPrimary: true,
+    sources: [domain],
+  };
+
+  switch (domain) {
+    case 'findings':
+      return {
+        entityKey: base.entityKey,
+        entityType: 'finding',
+        domain: 'findings',
+        title: base.title,
+        snippet: base.snippet,
+        score: base.score,
+        severity: 'high',
+        actions: [
+          {
+            label: 'View Finding',
+            actionType: 'navigate',
+            route: `/security/triage?q=${encodeURIComponent(query)}`,
+            isPrimary: base.isPrimary,
+          },
+        ],
+        sources: base.sources,
+      };
+    case 'vex':
+      return {
+        entityKey: base.entityKey,
+        entityType: 'vex_statement',
+        domain: 'vex',
+        title: base.title,
+        snippet: base.snippet,
+        score: base.score,
+        actions: [
+          {
+            label: 'View VEX',
+            actionType: 'navigate',
+            route: `/security/advisories-vex?q=${encodeURIComponent(query)}`,
+            isPrimary: base.isPrimary,
+          },
+        ],
+        sources: base.sources,
+      };
+    case 'policy':
+      return {
+        entityKey: base.entityKey,
+        entityType: 'policy_rule',
+        domain: 'policy',
+        title: base.title,
+        snippet: base.snippet,
+        score: base.score,
+        actions: [
+          {
+            label: 'View Policy',
+            actionType: 'navigate',
+            route: `/ops/policy?q=${encodeURIComponent(query)}`,
+            isPrimary: base.isPrimary,
+          },
+        ],
+        sources: base.sources,
+      };
+    case 'graph':
+      return {
+        entityKey: base.entityKey,
+        entityType: 'graph_node',
+        domain: 'graph',
+        title: base.title,
+        snippet: base.snippet,
+        score: base.score,
+        actions: [
+          {
+            label: 'Open Graph',
+            actionType: 'navigate',
+            route: '/ops/graph',
+            isPrimary: base.isPrimary,
+          },
+        ],
+        sources: base.sources,
+      };
+    case 'timeline':
+      return {
+        entityKey: base.entityKey,
+        entityType: 'ops_event',
+        domain: 'timeline',
+        title: base.title,
+        snippet: base.snippet,
+        score: base.score,
+        actions: [
+          {
+            label: 'Open Timeline',
+            actionType: 'navigate',
+            route: '/ops/timeline',
+            isPrimary: base.isPrimary,
+          },
+        ],
+        sources: base.sources,
+      };
+    case 'ops_memory':
+      return {
+        entityKey: base.entityKey,
+        entityType: 'ops_event',
+        domain: 'ops_memory',
+        title: base.title,
+        snippet: base.snippet,
+        score: base.score,
+        actions: [
+          {
+            label: 'Open Jobs',
+            actionType: 'navigate',
+            route: '/ops/operations/jobs',
+            isPrimary: base.isPrimary,
+          },
+        ],
+        sources: base.sources,
+      };
+    case 'platform':
+      return {
+        entityKey: base.entityKey,
+        entityType: 'platform_entity',
+        domain: 'platform',
+        title: base.title,
+        snippet: base.snippet,
+        score: base.score,
+        actions: [
+          {
+            label: 'Open Platform',
+            actionType: 'navigate',
+            route: '/mission-control',
+            isPrimary: base.isPrimary,
+          },
+        ],
+        sources: base.sources,
+      };
+    default:
+      return {
+        entityKey: base.entityKey,
+        entityType: query.toLowerCase().includes('api') ? 'api' : 'docs',
+        domain: 'knowledge',
+        title: base.title,
+        snippet: base.snippet,
+        score: base.score,
+        actions: [
+          {
+            label: 'Open Docs',
+            actionType: 'navigate',
+            route: '/docs',
+            isPrimary: base.isPrimary,
+          },
+        ],
+        sources: base.sources,
+      };
+  }
+}