diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a5e05a51c85..23ed7eeb30f 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -15,17 +15,14 @@ exclude: |
   (?x)^(
     .*zz_generated.deepcopy.*|
     .*pb.go|
-    pkg/apis/manager/.*pb2(?:_grpc)?.py|
+    pkg/apis/manager/.*pb2(?:_grpc)?.py(?:i)?|
     pkg/apis/v1beta1/openapi_generated.go|
     pkg/mock/.*|
-    pkg/client/controller/informers/externalversions/.*|
-    pkg/client/controller/applyconfiguration/.*|
-    pkg/client/controller/listers/.*|
-    pkg/client/controller/clientset/versioned/.*|
+    pkg/client/controller/.*|
     sdk/python/v1beta1/kubeflow/katib/configuration.py|
     sdk/python/v1beta1/kubeflow/katib/rest.py|
     sdk/python/v1beta1/kubeflow/katib/__init__.py|
     sdk/python/v1beta1/kubeflow/katib/exceptions.py|
     sdk/python/v1beta1/kubeflow/katib/api_client.py|
     sdk/python/v1beta1/kubeflow/katib/models/.*
-  )$
\ No newline at end of file
+  )$
diff --git a/docs/developer-guide.md b/docs/developer-guide.md
index dfe04250b06..955c44e5ae5 100644
--- a/docs/developer-guide.md
+++ b/docs/developer-guide.md
@@ -18,6 +18,7 @@ see the following user guides:
 - [Java](https://docs.oracle.com/javase/8/docs/technotes/guides/install/install_overview.html) (8 or later)
 - [Python](https://www.python.org/) (3.11 or later)
 - [kustomize](https://kustomize.io/) (4.0.5 or later)
+- [pre-commit](https://pre-commit.com/)
 
 ## Build from source code
 
@@ -150,3 +151,21 @@ Please see [Katib UI README](../pkg/ui/v1beta1).
 ## Design proposals
 
 Please see [proposals](./proposals).
+
+## Code Style
+
+### pre-commit
+
+Make sure to install [pre-commit](https://pre-commit.com/) (`pip install
+pre-commit`) and run `pre-commit install` from the root of the repository at
+least once before creating git commits.
+
+The pre-commit [hooks](../.pre-commit-config.yaml) ensure code quality and
+consistency. They are executed in CI. PRs that fail to comply with the hooks
+will not be able to pass the corresponding CI gate. The hooks are only executed
+against staged files unless you run `pre-commit run --all`, in which case,
+they'll be executed against every file in the repository.
+
+Specific programmatically generated files listed in the `exclude` field in
+[.pre-commit-config.yaml](../.pre-commit-config.yaml) are deliberately excluded
+from the hooks. 
diff --git a/pkg/apis/manager/health/python/health_pb2.pyi b/pkg/apis/manager/health/python/health_pb2.pyi
index f8a67276d5b..0a624f983b1 100644
--- a/pkg/apis/manager/health/python/health_pb2.pyi
+++ b/pkg/apis/manager/health/python/health_pb2.pyi
@@ -1,10 +1,7 @@
-from typing import ClassVar as _ClassVar
-from typing import Optional as _Optional
-from typing import Union as _Union
-
+from google.protobuf.internal import enum_type_wrapper as _enum_type_wrapper
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import message as _message
-from google.protobuf.internal import enum_type_wrapper as _enum_type_wrapper
+from typing import ClassVar as _ClassVar, Optional as _Optional, Union as _Union
 
 DESCRIPTOR: _descriptor.FileDescriptor
 
diff --git a/pkg/apis/manager/v1beta1/python/api_pb2.pyi b/pkg/apis/manager/v1beta1/python/api_pb2.pyi
index 8aea7e455aa..d1df3096d05 100644
--- a/pkg/apis/manager/v1beta1/python/api_pb2.pyi
+++ b/pkg/apis/manager/v1beta1/python/api_pb2.pyi
@@ -1,13 +1,8 @@
-from typing import ClassVar as _ClassVar
-from typing import Iterable as _Iterable
-from typing import Mapping as _Mapping
-from typing import Optional as _Optional
-from typing import Union as _Union
-
-from google.protobuf import descriptor as _descriptor
-from google.protobuf import message as _message
 from google.protobuf.internal import containers as _containers
 from google.protobuf.internal import enum_type_wrapper as _enum_type_wrapper
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from typing import ClassVar as _ClassVar, Iterable as _Iterable, Mapping as _Mapping, Optional as _Optional, Union as _Union
 
 DESCRIPTOR: _descriptor.FileDescriptor