diff --git a/src/MCP/Concerns/McpShowTool.php b/src/MCP/Concerns/McpShowTool.php
index 5ef58630e..8115fa1d3 100644
--- a/src/MCP/Concerns/McpShowTool.php
+++ b/src/MCP/Concerns/McpShowTool.php
@@ -45,6 +45,6 @@ public static function showToolSchema(ToolInputSchema $schema): void
             ->required();
 
         $schema->string('include')
-            ->description(static::formatRelationshipDocumentation());
+            ->description(static::formatRelationshipDocumentation(app(McpShowRequest::class)));
     }
 }