fix: use proper tool objects in template validation

app.py

@@ -87,6 +87,11 @@ with open("prompts.yaml", 'r') as stream:
     
     logger.debug("Starting template validation...")
     try:
+        # Create test tools for validation
+        test_tools = [
+            type('Tool', (), {'name': 'test_tool', 'description': 'A test tool'})()
+        ]
+        
         # Validate templates
         for key, value in prompt_templates.items():
             if isinstance(value, dict):
@@ -105,7 +110,7 @@ with open("prompts.yaml", 'r') as stream:
                             # Create a template with the task variable
                             template = Template(template_str, undefined=StrictUndefined)
                             rendered = template.render(
-                                tools=[],
+                                tools=test_tools,
                                 task="test",
                                 name="test",
                                 final_answer="test",
@@ -130,7 +135,7 @@ with open("prompts.yaml", 'r') as stream:
                     # Create a template with the task variable
                     template = Template(template_str, undefined=StrictUndefined)
                     rendered = template.render(
-                        tools=[],
+                        tools=test_tools,
                         task="test",
                         name="test",
                         final_answer="test",