fix: guard lazy executor in test utils + convert delegation logging to permanent debug level

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

lib/crewai/src/crewai/tools/agent_tools/base_agent_tools.py

@@ -4,6 +4,7 @@ from typing import Any
 from pydantic import Field
 
 from crewai.agents.agent_builder.base_agent import BaseAgent
+from crewai.events.event_context import get_current_parent_id
 from crewai.task import Task
 from crewai.tools.base_tool import BaseTool
 from crewai.utilities.i18n import I18N, get_i18n
@@ -126,7 +127,18 @@ class BaseAgentTool(BaseTool):
             logger.debug(
                 f"Created task for agent '{self.sanitize_agent_name(selected_agent.role)}': {task}"
             )
-            return selected_agent.execute_task(task_with_assigned_agent, context)
+            parent_id_before = get_current_parent_id()
+            logger.debug(
+                f"Delegation starting: parent_event_id={parent_id_before}, "
+                f"target_agent={self.sanitize_agent_name(selected_agent.role)}"
+            )
+            result = selected_agent.execute_task(task_with_assigned_agent, context)
+            parent_id_after = get_current_parent_id()
+            logger.debug(
+                f"Delegation complete: parent_event_id={parent_id_after}, "
+                f"target_agent={self.sanitize_agent_name(selected_agent.role)}"
+            )
+            return result
         except Exception as e:
             # Handle task creation or execution errors
             return self.i18n.errors("agent_tool_execution_error").format(