diff --git a/config.json b/config.json
index 6d03505..8d16bd1 100644
--- a/config.json
+++ b/config.json
@@ -17,6 +17,13 @@
         "title": "Reply",
         "type": "string"
       },
+      "reasoning": {
+        "__dspy_field_type": "output",
+        "desc": "Step-by-step reasoning, including uncertainty, ambiguity, or uncertainty in your thought process when relevant.",
+        "prefix": "Reasoning:",
+        "title": "Reasoning",
+        "type": "string"
+      },
       "quality": {
         "__dspy_field_type": "output",
         "desc": "'good' if the reply adequately addresses the original, 'poor' otherwise.",
@@ -32,6 +39,7 @@
     "required": [
       "original_email",
       "reply",
+      "reasoning",
       "quality"
     ],
     "title": "EnronReplyQualityJudgeSig",
diff --git a/program.json b/program.json
index 795ba11..bf02a58 100644
--- a/program.json
+++ b/program.json
@@ -13,6 +13,10 @@
         "prefix": "Reply:",
         "description": "The reply email body (may be truncated)."
       },
+      {
+        "prefix": "Reasoning:",
+        "description": "Step-by-step reasoning, including uncertainty, ambiguity, or uncertainty in your thought process when relevant."
+      },
       {
         "prefix": "Quality:",
         "description": "'good' if the reply adequately addresses the original, 'poor' otherwise."