fix: 'tools' shadow

app.py

@@ -26,7 +26,7 @@ request_toolkit = RequestsToolkit(
 )
 request_tools = request_toolkit.get_tools()
 
-tools = [
+TOOLS = [
     search_and_extract,
     youtube_search_tool,
     load_youtube_transcript,
@@ -37,7 +37,7 @@ tools = [
     *request_tools
 ],
 
-print(f"tools: {json.dumps(tools, indent=2)}")
+print(f"tools: {json.dumps(TOOLS, indent=2)}")
 
 
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
@@ -106,7 +106,7 @@ def run_and_submit_all( profile: gr.OAuthProfile | None):
     # 1. Instantiate Agent ( modify this part to create your agent)
     try:
         agent = ToolAgent(
-            tools=tools,
+            tools=TOOLS,
             backstory=TOOL_USE_SYS_PROMPT
             )
         agent.initialize()