chore(agent): enhance supervisor prompts and increase websearch recursion limit

Add "any" and "must" to make supervisor routing directives more emphatic and increase websearch recursion_limit from 3 to 6 to allow more thorough search results

agent/agent.py

@@ -1,7 +1,6 @@
-import os
 from datetime import datetime, timezone
 from dotenv import load_dotenv
-from colorama import Fore, Style
+from colorama import Fore, Style  # type: ignore[import]
 from langchain.agents import create_agent
 from langchain_core.messages import HumanMessage
 from agent.tools.math_solver import math_solver
@@ -19,9 +18,9 @@ def supervisor_agent():
             f"You are a supervisor agent. "
             f"Current time is: {datetime.now(timezone.utc).isoformat()}. "
             f"Your memory are out of date. "
-            f"For math or calculation questions, use the math_solver tool. "
-            f"For questions that need real-time, use the websearch_agent tool. "
-            f"Provide a concise and accurate final answer."
+            f"For any math or calculation questions, use the math_solver tool. "
+            f"All questions that need real-time, must use the websearch_agent tool "
+            f"to get a concise and accurate final answer."
         ),
     )
 

agent/agents/websearch.py

@@ -32,7 +32,7 @@ def websearch_agent(query: str) -> str:
     try:
         result = base_agent.invoke(
             {"messages": [{"role": "user", "content": query}]},
-            config={"recursion_limit": 3},
+            config={"recursion_limit": 6},
         )
         content = result["messages"][-1].content
         if isinstance(content, list):