Suppress startElicitation tool if client does not advertise support for elicitation capability

* In everything.ts
  - remove inappropriate elicitation entry from server capabilities (this is a client capability)
  - When creating tool list, only add `ToolName.ELICITATION` definition to tools array if `clientCapabilities` includes `elicitation`

* In package.json / package-lock.json
  - bump @modelcontextprotocol/sdk to "^1.17.4", adding `elicitation` to `ClientCapabilities` type

src/everything/everything.ts

@@ -164,8 +164,7 @@ export const createServer = () => {
         resources: { subscribe: true },
         tools: {},
         logging: {},
-        completions: {},
-        elicitation: {},
+        completions: {}
       },
       instructions
     }
@@ -177,7 +176,7 @@ export const createServer = () => {
 
   let logLevel: LoggingLevel = "debug";
   let logsUpdateInterval: NodeJS.Timeout | undefined;
-  // Store client capabilities 
+  // Store client capabilities
   let clientCapabilities: ClientCapabilities | undefined;
 
   // Roots state management
@@ -523,11 +522,6 @@ export const createServer = () => {
           "Returns a resource reference that can be used by MCP clients",
         inputSchema: zodToJsonSchema(GetResourceReferenceSchema) as ToolInput,
       },
-      {
-        name: ToolName.ELICITATION,
-        description: "Demonstrates the Elicitation feature by asking the user to provide information about their favorite color, number, and pets.",
-        inputSchema: zodToJsonSchema(ElicitationSchema) as ToolInput,
-      },
       {
         name: ToolName.GET_RESOURCE_LINKS,
         description:
@@ -548,7 +542,12 @@ export const createServer = () => {
             "Lists the current MCP roots provided by the client. Demonstrates the roots protocol capability even though this server doesn't access files.",
         inputSchema: zodToJsonSchema(ListRootsSchema) as ToolInput,
     });
-    
+    if (clientCapabilities!.elicitation) tools.push ({
+        name: ToolName.ELICITATION,
+        description: "Demonstrates the Elicitation feature by asking the user to provide information about their favorite color, number, and pets.",
+        inputSchema: zodToJsonSchema(ElicitationSchema) as ToolInput,
+    });
+
     return { tools };
   });
 

src/everything/package.json

@@ -22,7 +22,7 @@
     "start:streamableHttp": "node dist/streamableHttp.js"
   },
   "dependencies": {
-    "@modelcontextprotocol/sdk": "^1.12.0",
+    "@modelcontextprotocol/sdk": "^1.17.4",
     "express": "^4.21.1",
     "zod": "^3.23.8",
     "zod-to-json-schema": "^3.23.5"