@@ -60,7 +60,7 @@ npm install     # root install; postinstall cascades into every client
 ```
 
 This reference branch pins `@modelcontextprotocol/ext-apps` to commit
-`aa6cbbe` from
+`89ab2bc` from
 [ext-apps#733](https://github.com/modelcontextprotocol/ext-apps/pull/733).
 No private package or registry credentials are required. Replace the GitHub
 dependency with the first published ext-apps release that includes that PR.
@@ -223,8 +223,10 @@ Interop is defined by the wire shapes, not by which package produced them:
 | App-elicitation bridge missing either first-class App or host `elicitation` capability | Initialization or negotiation fails and the unchanged native form remains the fallback. |
 
 Resource selection, request forwarding, bridge negotiation, result validation,
-and fallback use only the standard elicitation request/result and the existing
-MCP Apps extension.
+and fallback use only the standard elicitation request/result, the
+`2026-07-28` MRTR retry fields, and the existing MCP Apps extension. The Apps
+bridge still negotiates its own `2026-01-26` protocol version; that value is
+independent of the core MCP protocol revision.
 
 #### Network tab — standardized headers and error taxonomy
 
 
@@ -43,7 +43,7 @@
     "@mantine/notifications": "^8.3.17",
     "@modelcontextprotocol/client": "2.0.0-beta.5",
     "@modelcontextprotocol/core": "2.0.0-beta.5",
-    "@modelcontextprotocol/ext-apps": "github:krubenok/ext-apps#aa6cbbe",
+    "@modelcontextprotocol/ext-apps": "github:krubenok/ext-apps#89ab2bc",
     "@modelcontextprotocol/server": "2.0.0-beta.5",
     "@modelcontextprotocol/server-legacy": "2.0.0-beta.5",
     "@napi-rs/keyring": "^1.3.0",
 
@@ -735,8 +735,8 @@ export class InspectorClient extends InspectorClientEventTarget {
       capabilities = withAppElicitationClientCapabilities(capabilities);
     }
     clientOptions.capabilities = capabilities;
-    // Keep an independent initialize-time snapshot for UI display and modern
-    // per-request envelopes.
+    // Keep an independent effective-capability snapshot for legacy initialize,
+    // UI display, and modern 2026-07-28 per-request envelopes.
     this.clientCapabilities = structuredClone(capabilities);
     // Read off the built capability object rather than re-deriving from
     // `options.roots`: the gate and the advertisement must agree, and two
@@ -2842,7 +2842,8 @@ export class InspectorClient extends InspectorClientEventTarget {
   /**
    * Validate the ordinary ElicitResult returned by an MCP App. The protocol
    * shape is checked first; accepted content is then checked against the exact
-   * requested form schema before it is returned to the originating server.
+   * requested form schema before it is returned directly on a legacy request
+   * or placed into the matching MRTR `inputResponses` entry.
    */
   private validateAppElicitationResult(
     result: unknown,
 
@@ -77,7 +77,7 @@
     "@hono/node-server": "^2.0.12",
     "@modelcontextprotocol/client": "2.0.0-beta.5",
     "@modelcontextprotocol/core": "2.0.0-beta.5",
-    "@modelcontextprotocol/ext-apps": "github:krubenok/ext-apps#aa6cbbe",
+    "@modelcontextprotocol/ext-apps": "github:krubenok/ext-apps#89ab2bc",
     "@modelcontextprotocol/server": "2.0.0-beta.5",
     "@modelcontextprotocol/server-legacy": "2.0.0-beta.5",
     "@napi-rs/keyring": "^1.3.0",