diff --git a/config/prod-meta-config.yaml b/config/prod-meta-config.yaml
index a4e9cad..af369f4 100644
--- a/config/prod-meta-config.yaml
+++ b/config/prod-meta-config.yaml
@@ -31,7 +31,11 @@ chains:
     ROLES: 
       - User
       - A2rchi
-      - Expert 
+      - Expert
+    #logging within base chain
+    logging:
+      #name of .log logfile to be saved in data folder.  
+      input_output_filename: chain_input_output.log 
   prompts:
   # prompt that serves to condense a history and a question into a single question
     CONDENSING_PROMPT: config/prompts/condense.prompt
diff --git a/config/prod-root-config.yaml b/config/prod-root-config.yaml
index 1d8ffd3..782a182 100644
--- a/config/prod-root-config.yaml
+++ b/config/prod-root-config.yaml
@@ -33,7 +33,11 @@ chains:
     ROLES: 
       - User
       - A2rchi
-      - Expert 
+      - Expert
+    #logging within base chain
+    logging:
+      #name of .log logfile to be saved in data folder.  
+      input_output_filename: chain_input_output.log
   prompts:
   # prompt that serves to condense a history and a question into a single question
     CONDENSING_PROMPT: config/prompts/condense.prompt