diff --git a/apps/cockpit/cockpit-capability-wiring.spec.ts b/apps/cockpit/cockpit-capability-wiring.spec.ts
new file mode 100644
index 000000000..f15186f11
--- /dev/null
+++ b/apps/cockpit/cockpit-capability-wiring.spec.ts
@@ -0,0 +1,86 @@
+import { cockpitManifest } from '@threadplane/cockpit-registry';
+import { capabilities } from './scripts/capability-registry';
+import {
+  buildNavigationTree,
+  capabilityModules,
+} from './src/lib/route-resolution';
+
+/**
+ * The cockpit site is assembled from three lists that nothing forced to agree:
+ *
+ *  - `apps/cockpit/scripts/capability-registry.ts` — what serve/build/deploy know about;
+ *  - `libs/cockpit-registry` `cockpitManifest` — what the Next route can resolve;
+ *  - `capabilityModules` in `route-resolution.ts` — what supplies a page's assets.
+ *
+ * When the `runtimes` product shipped, only the first list learned about it, so
+ * `/runtimes/core-capabilities/<topic>/overview/<lang>` threw
+ * "No manifest entry found …" and every runtime page 500'd in production while
+ * the whole suite stayed green. These assertions are the missing coupling.
+ */
+describe('cockpit capability wiring', () => {
+  const manifestKey = (e: { product: string; section: string; topic: string }) =>
+    `${e.product}/${e.section}/${e.topic}`;
+
+  it('gives every registered capability a resolvable manifest entry', () => {
+    const manifestKeys = new Set(cockpitManifest.map(manifestKey));
+
+    const unroutable = capabilities
+      .map((capability) => `${capability.product}/core-capabilities/${capability.topic}`)
+      .filter((key) => !manifestKeys.has(key));
+
+    expect(unroutable).toEqual([]);
+  });
+
+  it('gives every registered capability a cockpit module in route-resolution', () => {
+    const moduleKeys = new Set(
+      capabilityModules.map((module) => manifestKey(module.manifestIdentity))
+    );
+
+    const unwired = capabilities
+      .map((capability) => `${capability.product}/core-capabilities/${capability.topic}`)
+      .filter((key) => !moduleKeys.has(key));
+
+    expect(unwired).toEqual([]);
+  });
+
+  it('points every cockpit module at a capability that still exists', () => {
+    const capabilityKeys = new Set(
+      capabilities.map(
+        (capability) => `${capability.product}/core-capabilities/${capability.topic}`
+      )
+    );
+
+    const orphans = capabilityModules
+      .map((module) => manifestKey(module.manifestIdentity))
+      .filter((key) => !capabilityKeys.has(key));
+
+    expect(orphans).toEqual([]);
+  });
+
+  it('surfaces every manifest product in the navigation tree', () => {
+    const manifestProducts = [...new Set(cockpitManifest.map((entry) => entry.product))];
+    const navigationProducts = buildNavigationTree(cockpitManifest).map(
+      (product) => product.product
+    );
+
+    expect([...manifestProducts].sort()).toEqual([...navigationProducts].sort());
+
+    for (const product of buildNavigationTree(cockpitManifest)) {
+      const entries = product.sections.flatMap((section) => section.entries);
+      expect({ product: product.product, empty: entries.length === 0 }).toEqual({
+        product: product.product,
+        empty: false,
+      });
+    }
+  });
+
+  it('keeps every registry product inside the CockpitProduct union', () => {
+    // `cockpitManifest` is typed `CockpitManifestEntry[]`, so a product that is
+    // not in the union cannot appear here — the runtime check is that the
+    // registry's products are all representable in the manifest.
+    const manifestProducts = new Set<string>(cockpitManifest.map((entry) => entry.product));
+    const registryProducts = [...new Set(capabilities.map((c) => c.product))];
+
+    expect(registryProducts.filter((p) => !manifestProducts.has(p))).toEqual([]);
+  });
+});
diff --git a/apps/cockpit/src/lib/navigation-labels.ts b/apps/cockpit/src/lib/navigation-labels.ts
index 73641ee93..f0f588d48 100644
--- a/apps/cockpit/src/lib/navigation-labels.ts
+++ b/apps/cockpit/src/lib/navigation-labels.ts
@@ -3,10 +3,11 @@ export const PRODUCT_LABELS: Record<string, string> = {
   'langgraph': 'LangGraph',
   'render': 'Render',
   'chat': 'Chat',
+  'runtimes': 'Runtimes',
 };
 
 export function stripProductPrefix(title: string): string {
-  const prefixes = ['Deep Agents ', 'LangGraph ', 'Render ', 'Chat '];
+  const prefixes = ['Deep Agents ', 'LangGraph ', 'Render ', 'Chat ', 'Runtimes '];
   for (const p of prefixes) {
     if (title.startsWith(p)) return title.slice(p.length);
   }
diff --git a/apps/cockpit/src/lib/route-resolution.spec.ts b/apps/cockpit/src/lib/route-resolution.spec.ts
index 5a5e65dd6..7b0956eeb 100644
--- a/apps/cockpit/src/lib/route-resolution.spec.ts
+++ b/apps/cockpit/src/lib/route-resolution.spec.ts
@@ -47,22 +47,78 @@ describe('buildNavigationTree', () => {
   it('groups manifest entries by product and section', () => {
     const tree = buildNavigationTree(cockpitManifest);
 
-    expect(tree).toHaveLength(5);
-    expect(tree[0]).toMatchObject({
-      product: 'deep-agents',
-    });
-    expect(tree[1]).toMatchObject({
-      product: 'langgraph',
-    });
-    expect(tree[2]).toMatchObject({
-      product: 'ag-ui',
-    });
-    expect(tree[3]).toMatchObject({
-      product: 'render',
-    });
-    expect(tree[4]).toMatchObject({
-      product: 'chat',
+    expect(tree.map((product) => product.product)).toEqual([
+      'deep-agents',
+      'langgraph',
+      'ag-ui',
+      'render',
+      'chat',
+      'runtimes',
+    ]);
+  });
+
+  it('lists every runtimes topic under core-capabilities', () => {
+    const runtimes = buildNavigationTree(cockpitManifest).find(
+      (product) => product.product === 'runtimes'
+    );
+    const coreCapabilities = runtimes?.sections.find(
+      (section) => section.section === 'core-capabilities'
+    );
+
+    expect(coreCapabilities?.entries.map((entry) => entry.topic)).toEqual([
+      'microsoft-agent-framework',
+      'aws-strands',
+      'mastra',
+    ]);
+  });
+});
+
+describe('runtimes capability presentation', () => {
+  const resolveRuntime = (topic: string, language: 'python' | 'typescript' = 'python') =>
+    resolveCockpitEntry({
+      manifest: cockpitManifest,
+      product: 'runtimes',
+      section: 'core-capabilities',
+      topic,
+      page: 'overview',
+      language,
     });
+
+  it('resolves each runtime topic instead of throwing', () => {
+    for (const topic of ['microsoft-agent-framework', 'aws-strands', 'mastra']) {
+      expect(resolveRuntime(topic)).toMatchObject({
+        product: 'runtimes',
+        topic,
+        entryKind: 'capability',
+      });
+    }
+  });
+
+  it('serves Python-lane runtimes from their registered module assets', () => {
+    const presentation = getCapabilityPresentation(resolveRuntime('aws-strands'));
+
+    expect(presentation.kind).toBe('capability');
+    if (presentation.kind !== 'capability') return;
+    expect(presentation.runtimeUrl).toBe('runtimes/aws-strands');
+    expect(presentation.backendAssetPaths).toContain(
+      'cockpit/runtimes/aws-strands/python/src/agent.py'
+    );
+  });
+
+  it('falls back to the Angular-lane module for a runtime with no Python lane', () => {
+    const presentation = getCapabilityPresentation(resolveRuntime('mastra'));
+
+    expect(presentation.kind).toBe('capability');
+    if (presentation.kind !== 'capability') return;
+    // The manifest entry's language is 'python' (the canonical URL lane) but
+    // Mastra's only descriptor is the Angular one — the lookup must still find
+    // it rather than falling through to non-existent cockpit/runtimes/mastra/python paths.
+    expect(presentation.codeAssetPaths).toContain(
+      'cockpit/runtimes/mastra/angular/src/app/mastra.component.ts'
+    );
+    expect(presentation.promptAssetPaths).toEqual([
+      'cockpit/runtimes/mastra/angular/prompts/mastra.md',
+    ]);
   });
 });
 
diff --git a/apps/cockpit/src/lib/route-resolution.ts b/apps/cockpit/src/lib/route-resolution.ts
index 2dba74b29..0013018db 100644
--- a/apps/cockpit/src/lib/route-resolution.ts
+++ b/apps/cockpit/src/lib/route-resolution.ts
@@ -18,6 +18,7 @@ import { agUiToolViewsPythonModule } from '../../../../cockpit/ag-ui/tool-views/
 import { agUiJsonRenderPythonModule } from '../../../../cockpit/ag-ui/json-render/python/src/index';
 import { agUiClientToolsPythonModule } from '../../../../cockpit/ag-ui/client-tools/python/src/index';
 import { agUiA2uiPythonModule } from '../../../../cockpit/ag-ui/a2ui/python/src/index';
+import { agUiSubagentsPythonModule } from '../../../../cockpit/ag-ui/subagents/python/src/index';
 import { deepAgentsMemoryPythonModule } from '../../../../cockpit/deep-agents/memory/python/src/index';
 import { deepAgentsPlanningPythonModule } from '../../../../cockpit/deep-agents/planning/python/src/index';
 import { deepAgentsFilesystemPythonModule } from '../../../../cockpit/deep-agents/filesystem/python/src/index';
@@ -41,6 +42,11 @@ import { chatGenerativeUiPythonModule } from '../../../../cockpit/chat/generativ
 import { chatDebugPythonModule } from '../../../../cockpit/chat/debug/python/src/index';
 import { chatThemingPythonModule } from '../../../../cockpit/chat/theming/python/src/index';
 import { chatA2uiPythonModule } from '../../../../cockpit/chat/a2ui/python/src/index';
+import { runtimesMicrosoftAgentFrameworkPythonModule } from '../../../../cockpit/runtimes/microsoft-agent-framework/python/src/index';
+import { runtimesAwsStrandsPythonModule } from '../../../../cockpit/runtimes/aws-strands/python/src/index';
+// Mastra has no Python lane — its backend is the Node AG-UI service
+// deployments/ag-ui-mastra — so its descriptor lives beside the Angular app.
+import { runtimesMastraAngularModule } from '../../../../cockpit/runtimes/mastra/angular/src/index';
 
 export interface ResolveCockpitEntryOptions {
   manifest: CockpitManifestEntry[];
@@ -79,7 +85,33 @@ export type CapabilityPresentation =
       devPort?: number;
     };
 
-const capabilityModules = [
+/**
+ * Shape a `cockpit/**\/src/index.ts` descriptor must satisfy to be wired into
+ * the cockpit. Each example declares its own structural copy of this interface
+ * (standalone-examples rule), so the fields diverge: the Angular lane carries
+ * no backend/docs assets. Declaring the element type here keeps the registry
+ * heterogeneous without widening every reader to a union.
+ */
+export interface RegisteredCapabilityModule {
+  id: string;
+  manifestIdentity: {
+    product: string;
+    section: string;
+    topic: string;
+    page: string;
+    language: string;
+  };
+  title: string;
+  docsPath: string;
+  promptAssetPaths: string[];
+  codeAssetPaths: string[];
+  backendAssetPaths?: string[];
+  docsAssetPaths?: string[];
+  runtimeUrl?: string;
+  devPort?: number;
+}
+
+export const capabilityModules: RegisteredCapabilityModule[] = [
   langgraphStreamingPythonModule,
   langgraphPersistencePythonModule,
   langgraphInterruptsPythonModule,
@@ -95,6 +127,7 @@ const capabilityModules = [
   agUiJsonRenderPythonModule,
   agUiClientToolsPythonModule,
   agUiA2uiPythonModule,
+  agUiSubagentsPythonModule,
   deepAgentsMemoryPythonModule,
   deepAgentsPlanningPythonModule,
   deepAgentsFilesystemPythonModule,
@@ -118,6 +151,9 @@ const capabilityModules = [
   chatDebugPythonModule,
   chatThemingPythonModule,
   chatA2uiPythonModule,
+  runtimesMicrosoftAgentFrameworkPythonModule,
+  runtimesAwsStrandsPythonModule,
+  runtimesMastraAngularModule,
 ];
 
 export const toCockpitPath = (entry: CockpitManifestEntry): string =>
@@ -183,7 +219,14 @@ export const resolveCockpitEntry = ({
 export const buildNavigationTree = (
   manifest: CockpitManifestEntry[]
 ): NavigationProduct[] => {
-  const products: CockpitManifestEntry['product'][] = ['deep-agents', 'langgraph', 'ag-ui', 'render', 'chat'];
+  const products: CockpitManifestEntry['product'][] = [
+    'deep-agents',
+    'langgraph',
+    'ag-ui',
+    'render',
+    'chat',
+    'runtimes',
+  ];
   const sections: CockpitManifestEntry['section'][] = [
     'getting-started',
     'core-capabilities',
@@ -221,14 +264,22 @@ export const getCapabilityPresentation = (
     };
   }
 
-  const module = capabilityModules.find(
-    (candidate) =>
-      candidate.manifestIdentity.product === entry.product &&
-      candidate.manifestIdentity.section === entry.section &&
-      candidate.manifestIdentity.topic === entry.topic &&
-      candidate.manifestIdentity.page === entry.page &&
-      candidate.manifestIdentity.language === entry.language
-  );
+  const matchesIdentity = (candidate: RegisteredCapabilityModule): boolean =>
+    candidate.manifestIdentity.product === entry.product &&
+    candidate.manifestIdentity.section === entry.section &&
+    candidate.manifestIdentity.topic === entry.topic &&
+    candidate.manifestIdentity.page === entry.page;
+
+  // Prefer the module whose lane matches the requested language. Fall back to
+  // the topic's only module when no lane matches: a topic with no Python lane
+  // (runtimes/mastra) still resolves to its real assets instead of silently
+  // falling through to the manifest's generic, non-existent Python paths.
+  const module =
+    capabilityModules.find(
+      (candidate) =>
+        matchesIdentity(candidate) &&
+        candidate.manifestIdentity.language === entry.language
+    ) ?? capabilityModules.find(matchesIdentity);
 
   return {
     kind: 'capability',
diff --git a/libs/cockpit-registry/src/lib/manifest.spec.ts b/libs/cockpit-registry/src/lib/manifest.spec.ts
index aff5294d5..7dfa834b4 100644
--- a/libs/cockpit-registry/src/lib/manifest.spec.ts
+++ b/libs/cockpit-registry/src/lib/manifest.spec.ts
@@ -97,6 +97,7 @@ describe('cockpitManifest', () => {
       'ag-ui/getting-started/overview',
       'render/getting-started/overview',
       'chat/getting-started/overview',
+      'runtimes/getting-started/overview',
     ]);
   });
 
@@ -105,7 +106,7 @@ describe('cockpitManifest', () => {
       (entry) => entry.entryKind === 'capability'
     );
 
-    expect(capabilityEntries).toHaveLength(36);
+    expect(capabilityEntries).toHaveLength(42);
 
     for (const entry of capabilityEntries) {
       expect(entry.supportedLanguages).toEqual(['python']);
diff --git a/libs/cockpit-registry/src/lib/manifest.ts b/libs/cockpit-registry/src/lib/manifest.ts
index 505a91c8f..b71703d59 100644
--- a/libs/cockpit-registry/src/lib/manifest.ts
+++ b/libs/cockpit-registry/src/lib/manifest.ts
@@ -28,11 +28,20 @@ const APPROVED_TOPICS = {
       'subgraphs',
       'time-travel',
       'deployment-runtime',
+      'client-tools',
     ],
   },
   'ag-ui': {
     'getting-started': ['overview'],
-    'core-capabilities': ['streaming', 'interrupts', 'tool-views', 'json-render', 'a2ui'],
+    'core-capabilities': [
+      'streaming',
+      'interrupts',
+      'tool-views',
+      'json-render',
+      'client-tools',
+      'a2ui',
+      'subagents',
+    ],
   },
   render: {
     'getting-started': ['overview'],
@@ -61,8 +70,31 @@ const APPROVED_TOPICS = {
       'a2ui',
     ],
   },
+  runtimes: {
+    'getting-started': ['overview'],
+    'core-capabilities': [
+      'microsoft-agent-framework',
+      'aws-strands',
+      'mastra',
+    ],
+  },
 } as const;
 
+/**
+ * Example-directory lane for a capability topic, as `<product>/<topic>`.
+ * Every topic ships its example under `cockpit/<product>/<topic>/python`
+ * except the ones listed here: the Mastra runtime's backend is the Node
+ * AG-UI service `deployments/ag-ui-mastra`, so its assets and smoke target
+ * live in the `angular` lane instead. Keeping the lane explicit is what
+ * keeps `promptAssetPaths`/`codeAssetPaths` pointing at files that exist.
+ */
+const TOPIC_LANES: Record<string, 'python' | 'angular'> = {
+  'runtimes/mastra': 'angular',
+};
+
+const getLane = (product: string, topic: string): 'python' | 'angular' =>
+  TOPIC_LANES[`${product}/${topic}`] ?? 'python';
+
 const toTitle = (value: string): string =>
   value
     .split('-')
@@ -81,6 +113,8 @@ const getProductTitle = (product: CockpitProduct): string => {
       return 'Render';
     case 'chat':
       return 'Chat';
+    case 'runtimes':
+      return 'Runtimes';
   }
 };
 
@@ -99,13 +133,13 @@ const getDocsPath = (
 ): string => `/docs/${product}/${section}/${topic}/overview/python`;
 
 const getPromptAssetPath = (product: CockpitProduct, topic: string): string =>
-  `cockpit/${product}/${topic}/python/prompts/${topic}.md`;
+  `cockpit/${product}/${topic}/${getLane(product, topic)}/prompts/${topic}.md`;
 
 const getCodeAssetPath = (product: CockpitProduct, topic: string): string =>
-  `cockpit/${product}/${topic}/python/src/index.ts`;
+  `cockpit/${product}/${topic}/${getLane(product, topic)}/src/index.ts`;
 
 const getSmokeTarget = (product: CockpitProduct, topic: string): string =>
-  `cockpit-${product}-${topic}-python:smoke`;
+  `cockpit-${product}-${topic}-${getLane(product, topic)}:smoke`;
 
 const getRuntimeClass = (topic: string): CockpitRuntimeClass =>
   topic === 'deployment-runtime' ? 'deployed-service' : 'local-service';
diff --git a/libs/cockpit-registry/src/lib/manifest.types.ts b/libs/cockpit-registry/src/lib/manifest.types.ts
index 8fe165444..71192c475 100644
--- a/libs/cockpit-registry/src/lib/manifest.types.ts
+++ b/libs/cockpit-registry/src/lib/manifest.types.ts
@@ -1,4 +1,14 @@
-export type CockpitProduct = 'deep-agents' | 'langgraph' | 'ag-ui' | 'render' | 'chat';
+export type CockpitProduct =
+  | 'deep-agents'
+  | 'langgraph'
+  | 'ag-ui'
+  | 'render'
+  | 'chat'
+  /**
+   * The one-capability-many-runtimes axis (`cockpit/runtimes/<runtime>/`):
+   * non-LangGraph AG-UI backends measured against the same Agent contract.
+   */
+  | 'runtimes';
 
 export type CockpitSection = 'getting-started' | 'core-capabilities';