Deprecate the field instead of removing

python/semantic_kernel/kernel.py

@@ -35,6 +35,7 @@
 from semantic_kernel.functions.kernel_plugin import KernelPlugin
 from semantic_kernel.kernel_types import AI_SERVICE_CLIENT_TYPE, OneOrMany
 from semantic_kernel.prompt_template.const import KERNEL_TEMPLATE_FORMAT_NAME
+from semantic_kernel.reliability.kernel_reliability_extension import KernelReliabilityExtension
 from semantic_kernel.services.ai_service_selector import AIServiceSelector
 from semantic_kernel.services.kernel_services_extension import KernelServicesExtension
 from semantic_kernel.utils.naming import generate_random_ascii_name
@@ -51,7 +52,7 @@
 logger: logging.Logger = logging.getLogger(__name__)
 
 
-class Kernel(KernelFilterExtension, KernelFunctionExtension, KernelServicesExtension):
+class Kernel(KernelFilterExtension, KernelFunctionExtension, KernelServicesExtension, KernelReliabilityExtension):
     """The Kernel of Semantic Kernel.
 
     This is the main entry point for Semantic Kernel. It provides the ability to run

python/semantic_kernel/reliability/kernel_reliability_extension.py

@@ -0,0 +1,22 @@
+# Copyright (c) Microsoft. All rights reserved.
+
+import logging
+from abc import ABC
+
+from pydantic import Field
+from typing_extensions import deprecated
+
+from semantic_kernel.kernel_pydantic import KernelBaseModel
+from semantic_kernel.reliability.pass_through_without_retry import PassThroughWithoutRetry
+from semantic_kernel.reliability.retry_mechanism_base import RetryMechanismBase
+
+logger: logging.Logger = logging.getLogger(__name__)
+
+
+class KernelReliabilityExtension(KernelBaseModel, ABC):
+    """Kernel reliability extension."""
+
+    retry_mechanism: RetryMechanismBase = Field(
+        default_factory=PassThroughWithoutRetry,
+        deprecated=deprecated("retry_mechanism is deprecated; This property doesn't have any effect on the kernel."),
+    )

python/semantic_kernel/reliability/pass_through_without_retry.py

@@ -0,0 +1,31 @@
+# Copyright (c) Microsoft. All rights reserved.
+
+import logging
+from collections.abc import Awaitable, Callable
+from typing import TypeVar
+
+from semantic_kernel.kernel_pydantic import KernelBaseModel
+from semantic_kernel.reliability.retry_mechanism_base import RetryMechanismBase
+
+T = TypeVar("T")
+
+logger: logging.Logger = logging.getLogger(__name__)
+
+
+class PassThroughWithoutRetry(RetryMechanismBase, KernelBaseModel):
+    """A retry mechanism that does not retry."""
+
+    async def execute_with_retry(self, action: Callable[[], Awaitable[T]]) -> Awaitable[T]:
+        """Executes the given action with retry logic.
+
+        Args:
+            action (Callable[[], Awaitable[T]]): The action to retry on exception.
+
+        Returns:
+            Awaitable[T]: An awaitable that will return the result of the action.
+        """
+        try:
+            return action()
+        except Exception as e:
+            logger.warning(e, "Error executing action, not retrying")
+            raise e

python/semantic_kernel/reliability/retry_mechanism_base.py

@@ -0,0 +1,26 @@
+# Copyright (c) Microsoft. All rights reserved.
+
+import logging
+from abc import ABC, abstractmethod
+from collections.abc import Awaitable, Callable
+from typing import TypeVar
+
+T = TypeVar("T")
+
+logger: logging.Logger = logging.getLogger(__name__)
+
+
+class RetryMechanismBase(ABC):
+    """Base class for retry mechanisms."""
+
+    @abstractmethod
+    async def execute_with_retry(self, action: Callable[[], Awaitable[T]]) -> Awaitable[T]:
+        """Executes the given action with retry logic.
+
+        Args:
+            action (Callable[[], Awaitable[T]]): The action to retry on exception.
+
+        Returns:
+            Awaitable[T]: An awaitable that will return the result of the action.
+        """
+        pass

python/tests/unit/kernel/test_kernel.py

@@ -47,6 +47,7 @@ def test_init():
     assert kernel.ai_service_selector is not None
     assert kernel.plugins is not None
     assert kernel.services is not None
+    assert kernel.retry_mechanism is not None
     assert kernel.function_invocation_filters is not None
     assert kernel.prompt_rendering_filters is not None