Update prompts.yaml

prompts.yaml

@@ -319,5 +319,9 @@
   "report": |-
     Here is the final answer from your managed agent '{{name}}':
     {{final_answer}}
-final_answer: |-
-  {{answer}}
+final_answer: # <--- This key now starts a dictionary
+  pre_messages: |- # <--- This is a required key INSIDE final_answer
+    You have successfully solved the task and obtained the final answer. Present the final answer below. # <--- Template text before the answer generation
+
+  template: |- # <--- This is likely another required key for the actual answer format
+    {{answer}} # <--- This is the template that formats the input to final_answer(...)