Update prompts.yaml

prompts.yaml

@@ -299,6 +299,16 @@
     After writing the final step of the plan, write the '\n<end_plan>' tag and stop there.
 
     Now write your new plan below.
+
+"final_answer": |-
+  <s>[INST] <<SYS>>
+  You have reached the final step. Return the answer using the `final_answer` tool.
+  - The content must be inside the tags <answer></answer>.
+  - Be concise and direct.
+  <</SYS>>
+  {input} [/INST]
+  <answer>{answer}</answer>
+
 "managed_agent":
   "task": |-
     You're a helpful agent named '{{name}}'.