diff --git a/examples/basic-host/src/implementation.ts b/examples/basic-host/src/implementation.ts
index 9ce9fa63..5e67164f 100644
--- a/examples/basic-host/src/implementation.ts
+++ b/examples/basic-host/src/implementation.ts
@@ -60,11 +60,21 @@ export function hasAppHtml(toolCallInfo: ToolCallInfo): toolCallInfo is Required
 }
 
 
-export function callTool(
+/**
+ * Resolves URI template parameters like {param} with values from structuredContent
+ */
+function resolveUriParameters(uriTemplate: string, structuredContent: Record<string, unknown>): string {
+  return uriTemplate.replace(/\{(\w+)\}/g, (match, paramName) => {
+    const value = structuredContent[paramName];
+    return value !== undefined ? String(value) : match;
+  });
+}
+
+export async function callTool(
   serverInfo: ServerInfo,
   name: string,
   input: Record<string, unknown>,
-): ToolCallInfo {
+): Promise<ToolCallInfo> {
   log.info("Calling tool", name, "with input", input);
   const resultPromise = serverInfo.client.callTool({ name, arguments: input }) as Promise<CallToolResult>;
 
@@ -74,10 +84,17 @@ export function callTool(
   }
 
   const toolCallInfo: ToolCallInfo = { serverInfo, tool, input, resultPromise };
+  let result = await resultPromise;
 
   const uiResourceUri = getToolUiResourceUri(tool);
   if (uiResourceUri) {
-    toolCallInfo.appResourcePromise = getUiResource(serverInfo, uiResourceUri);
+    // Replace URL parameters with values from structuredContent
+    let resolvedUri = uiResourceUri;
+    if (result.structuredContent && typeof result.structuredContent === 'object') {
+      resolvedUri = resolveUriParameters(uiResourceUri, result.structuredContent);
+      log.info(`Resolved URI: ${uiResourceUri} -> ${resolvedUri}`);
+    }
+    toolCallInfo.appResourcePromise = getUiResource(serverInfo, resolvedUri);
   }
 
   return toolCallInfo;
diff --git a/examples/basic-host/src/index.tsx b/examples/basic-host/src/index.tsx
index baaa7bb6..55090c33 100644
--- a/examples/basic-host/src/index.tsx
+++ b/examples/basic-host/src/index.tsx
@@ -160,12 +160,12 @@ function CallToolPanel({ serversPromise, addToolCall, initialServer, initialTool
   };
 
   // Submit with optional override for server/tool (used by auto-call)
-  const handleSubmit = (overrideServer?: ServerInfo, overrideTool?: string) => {
+  const handleSubmit = async (overrideServer?: ServerInfo, overrideTool?: string) => {
     const server = overrideServer ?? selectedServer;
     const tool = overrideTool ?? selectedTool;
     if (!server) return;
 
-    const toolCallInfo = callTool(server, tool, JSON.parse(inputJson));
+    const toolCallInfo = await callTool(server, tool, JSON.parse(inputJson));
     addToolCall(toolCallInfo);
 
     // Update URL for easy refresh/sharing (without triggering navigation)
@@ -178,7 +178,7 @@ function CallToolPanel({ serversPromise, addToolCall, initialServer, initialTool
 
   return (
     <div className={styles.callToolPanel}>
-      <form onSubmit={(e) => { e.preventDefault(); handleSubmit(); }}>
+      <form onSubmit={async (e) => { e.preventDefault(); await handleSubmit(); }}>
         <label>
           Server
           <Suspense fallback={<select disabled><option>Loading...</option></select>}>