default_level=:debug

config/initializers/instrumentalizing.rb

@@ -15,12 +15,13 @@ end
 
 Rails.configuration.after_initialize do
   RailsSemanticLogger::Rack::Logger.logger.level = :info # useful for remaining log like "[Rack::Log] Started..."
+  SemanticLogger.default_level = :debug
   Rails.logger.name = 'rails'
 
   if Rails.env.production?
-
+    appender = :syslog
     formatter = Rails.application.config.x.semantic.formatter.constantize.new
-    SemanticLogger.add_appender(appender: :syslog, formatter:)
+    SemanticLogger.add_appender(appender:, formatter:)
     Semantic::Instrumentalizer.activate(*build_instrumentation_config)
 
   else