Allow subscribing to resources, but subscribe is only true if full set of handlers present.

Author: PederHP

src/ModelContextProtocol.Core/Server/McpServer.cs

@@ -308,7 +308,8 @@ await originalListResourceTemplatesHandler(request, cancellationToken).Configure
 
             listChanged = true;
 
-            subscribe = true;
+            // TODO: Implement subscribe/unsubscribe logic for resource and resource template collections
+            // subscribe = true;
         }
 
         ServerCapabilities.Resources.ListResourcesHandler = listResourcesHandler;

src/ModelContextProtocol/McpServerHandlers.cs

@@ -185,13 +185,13 @@ internal void OverwriteWithSetHandlers(McpServerOptions options)
             resourcesCapability.ListResourceTemplatesHandler = ListResourceTemplatesHandler ?? resourcesCapability.ListResourceTemplatesHandler;
             resourcesCapability.ListResourcesHandler = ListResourcesHandler ?? resourcesCapability.ListResourcesHandler;
             resourcesCapability.ReadResourceHandler = ReadResourceHandler ?? resourcesCapability.ReadResourceHandler;
+        }
 
-            if (SubscribeToResourcesHandler is not null || UnsubscribeFromResourcesHandler is not null)
-            {
-                resourcesCapability.SubscribeToResourcesHandler = SubscribeToResourcesHandler ?? resourcesCapability.SubscribeToResourcesHandler;
-                resourcesCapability.UnsubscribeFromResourcesHandler = UnsubscribeFromResourcesHandler ?? resourcesCapability.UnsubscribeFromResourcesHandler;
-                resourcesCapability.Subscribe = true;
-            }
+        if (SubscribeToResourcesHandler is not null || UnsubscribeFromResourcesHandler is not null)
+        {
+            resourcesCapability.SubscribeToResourcesHandler = SubscribeToResourcesHandler ?? resourcesCapability.SubscribeToResourcesHandler;
+            resourcesCapability.UnsubscribeFromResourcesHandler = UnsubscribeFromResourcesHandler ?? resourcesCapability.UnsubscribeFromResourcesHandler;
+            resourcesCapability.Subscribe = true;
         }
 
         ToolsCapability? toolsCapability = options.Capabilities?.Tools;