Internal Release 0.5.0

Bump protocol version to 2025-03-26
Provide fallback value for tool_name
Make configuration per server
Add support for tool annotations
document tool annotations

lib/model_context_protocol/prompt.rb

@@ -114,7 +114,7 @@ module ModelContextProtocol
       private
 
       def required_args
-        arguments_value.filter_map { |arg| arg.name if arg.required }
+        arguments_value.filter_map { |arg| arg.name.to_sym if arg.required }
       end
     end
   end