feat: support to define a guardrail task no-code

src/crewai/utilities/events/__init__.py

@@ -9,6 +9,10 @@ from .crew_events import (
     CrewTestCompletedEvent,
     CrewTestFailedEvent,
 )
+from .guardrail_task_events import (
+    GuardrailTaskCompletedEvent,
+    GuardrailTaskStartedEvent,
+)
 from .agent_events import (
     AgentExecutionStartedEvent,
     AgentExecutionCompletedEvent,

src/crewai/utilities/events/event_types.py

@@ -23,6 +23,10 @@ from .flow_events import (
     MethodExecutionFinishedEvent,
     MethodExecutionStartedEvent,
 )
+from .guardrail_task_events import (
+    GuardrailTaskCompletedEvent,
+    GuardrailTaskStartedEvent,
+)
 from .llm_events import (
     LLMCallCompletedEvent,
     LLMCallFailedEvent,
@@ -68,4 +72,6 @@ EventTypes = Union[
     LLMCallCompletedEvent,
     LLMCallFailedEvent,
     LLMStreamChunkEvent,
+    GuardrailTaskStartedEvent,
+    GuardrailTaskCompletedEvent,
 ]

src/crewai/utilities/events/guardrail_task_events.py

@@ -0,0 +1,28 @@
+from typing import Any, Callable, Optional, Union
+
+from pydantic import BaseModel
+
+from crewai.utilities.events.base_events import BaseEvent
+
+
+class GuardrailTaskStartedEvent(BaseEvent):
+    """Event emitted when a guardrail task starts
+
+    Attributes:
+        messages: Content can be either a string or a list of dictionaries that support
+            multimodal content (text, images, etc.)
+    """
+
+    type: str = "guardrail_task_started"
+    guardrail: Union[str, Callable]
+    retry_count: int
+
+
+class GuardrailTaskCompletedEvent(BaseEvent):
+    """Event emitted when a guardrail task completes"""
+
+    type: str = "guardrail_task_completed"
+    success: bool
+    result: Any
+    error: Optional[str] = None
+    retry_count: int