diff --git a/config.yaml b/config.yaml
index a2a0079..5155a99 100755
--- a/config.yaml
+++ b/config.yaml
@@ -1,6 +1,8 @@
 service:
   logging_level: $LOGGING_LEVEL_ROOT|DEBUG  # Logging level for service logger
 #  target_file_extension: $TARGET_FILE_EXTENSION|"json.gz"  # Extension for files to download from storage and process
+
+  # TODO: will become obsolete by below changes
   response_file_extension: $RESPONSE_FILE_EXTENSION|"json.gz"  # Extension for response files to upload to storage
   # In case a service is not supposed to place response files under the root folder `dossierId/fileId` and requests do
   # not specify an operation, this parameter can specify an output folder
@@ -8,7 +10,7 @@ service:
   # Specifies, how to handle the `page` key of a request. "multi" will download all pages  matching the list of pages
   # specified in the request
   download_strategy: $DOWNLOAD_STRATEGY|multi
-  response_formatter: default
+  response_formatter: default  # TODO: write formatter for analysis tasks that pulls metadata content into root of response json
   operations:
     table_parsing:
       input:
@@ -19,7 +21,7 @@ service:
         subdir: ""
         extension: IN.gz
       output: # FIXME
-        subdir: ""
+        subdir: ""  # FIXME: currently operation string is sued for output dir
         extension: out.gz
 
 probing_webserver: