diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 1110ddd6a..2886dd8ff 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -29,20 +29,29 @@ Submitting pull requests
 Before you submit a pull request, make sure to complete the following steps: 
 
 
-#. Fork the Skyplane repository to create a copy of the project in your own account.
-#. Set up a developer environment as described in the `Development Guide <development_guide.md>`_.
-#. Create a development branch (\ ``git checkout -b feature_name``\ )
-#. Test your changes manually using ``skyplane cp`` and with the unit test suite:
-   .. code-block:: bash
+1. Fork the Skyplane repository to create a copy of the project in your own account.
+2. Set up a developer environment as described in the `Development Guide <development_guide.md>`_.
+3. Create a development branch (\ ``git checkout -b feature_name``\ )
+4. Test your changes manually using ``skyplane cp`` and with the unit test suite:
+
+   .. code-block:: console
 
       $ pytest tests/unit_nocloud/
+5. Ensure your code is autoformatted and passes type checks:
 
-#. Ensure your code is autoformatted and passes type checks:
-   .. code-block:: bash
+   .. code-block:: console
 
-      $ pip install black pytype
+      $ pip install black pytype autoflake
       $ black -l 140 .
       $ pytype --config .pytype.cfg skyplane
+      $ autoflake --in-place --remove-all-unused-imports --remove-unused-variables --recursive skyplane
+6. If you updated documentation, test the docs:
+
+   .. code-block:: console
 
-#. Commit your changes using a `descriptive commit message <https://cbea.ms/git-commit/>`_.
-#. Create a pull request on the main Skyplane repo from your fork. Consult `Github Help <https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests>`_ for more details.
+      $ pip install sphinx-autobuild
+      $ cd docs
+      $ pip install -r requirements.txt
+      $ sphinx-autobuild -b html . /tmp/docs_build
+7. Commit your changes using a `descriptive commit message <https://cbea.ms/git-commit/>`_.
+8. Create a pull request on the main Skyplane repo from your fork. Consult `Github Help <https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/about-pull-requests>`_ for more details.
diff --git a/skyplane/__init__.py b/skyplane/__init__.py
index be6cb781f..d8376450f 100644
--- a/skyplane/__init__.py
+++ b/skyplane/__init__.py
@@ -1,6 +1,5 @@
 import os
 from pathlib import Path
-import uuid
 
 from skyplane.config import SkyplaneConfig
 from skyplane.gateway_version import gateway_version
diff --git a/skyplane/cli/cli.py b/skyplane/cli/cli.py
index 91246f051..ae17dc331 100644
--- a/skyplane/cli/cli.py
+++ b/skyplane/cli/cli.py
@@ -14,7 +14,6 @@
 import skyplane.cli.usage.client
 from skyplane import GB
 from skyplane.cli.usage.client import UsageClient, UsageStatsStatus
-from skyplane.obj_store.s3_interface import S3Interface
 from skyplane.replicate.replicator_client import ReplicatorClient
 
 import typer
@@ -26,7 +25,7 @@
 import skyplane.cli.cli_internal as cli_internal
 import skyplane.cli.cli_solver
 import skyplane.cli.experiments
-from skyplane import config_path, exceptions, skyplane_root, cloud_config, tmp_log_dir
+from skyplane import cloud_config, config_path, exceptions, skyplane_root
 from skyplane.cli.common import print_header, console
 from skyplane.cli.cli_impl.cp_replicate import (
     enrich_dest_objs,
diff --git a/skyplane/cli/cli_impl/cp_replicate.py b/skyplane/cli/cli_impl/cp_replicate.py
index 9e415b7d6..1ad547704 100644
--- a/skyplane/cli/cli_impl/cp_replicate.py
+++ b/skyplane/cli/cli_impl/cp_replicate.py
@@ -1,4 +1,3 @@
-import json
 import os
 import pathlib
 import signal
@@ -12,7 +11,7 @@
 from skyplane import exceptions, GB, format_bytes, gateway_docker_image, skyplane_root, cloud_config
 from skyplane.compute.cloud_providers import CloudProvider
 from skyplane.obj_store.object_store_interface import ObjectStoreInterface, ObjectStoreObject
-from skyplane.obj_store.s3_interface import S3Interface, S3Object
+from skyplane.obj_store.s3_interface import S3Object
 from skyplane.obj_store.gcs_interface import GCSObject
 from skyplane.obj_store.azure_blob_interface import AzureBlobObject
 from skyplane.replicate.replication_plan import ReplicationTopology, ReplicationJob
@@ -21,10 +20,7 @@
 from skyplane.utils.timer import Timer
 from skyplane.cli.common import console
 
-import skyplane.cli
-import skyplane.cli.usage.definitions
-import skyplane.cli.usage.client
-from skyplane.cli.usage.client import UsageClient, UsageStatsStatus
+from skyplane.cli.usage.client import UsageClient
 
 
 def generate_topology(
diff --git a/skyplane/compute/azure/azure_cloud_provider.py b/skyplane/compute/azure/azure_cloud_provider.py
index c3eaf0431..7ebb53362 100644
--- a/skyplane/compute/azure/azure_cloud_provider.py
+++ b/skyplane/compute/azure/azure_cloud_provider.py
@@ -1,4 +1,3 @@
-import json
 import os
 import re
 import uuid
diff --git a/skyplane/compute/azure/azure_server.py b/skyplane/compute/azure/azure_server.py
index 9bfcf3d1f..924690733 100644
--- a/skyplane/compute/azure/azure_server.py
+++ b/skyplane/compute/azure/azure_server.py
@@ -11,7 +11,6 @@
 from skyplane import key_root
 from skyplane.compute.azure.azure_auth import AzureAuthentication
 from skyplane.compute.server import Server, ServerState
-from skyplane.utils import logger
 from skyplane.utils.cache import ignore_lru_cache
 from skyplane.utils.fn import PathLike
 
@@ -147,8 +146,8 @@ def terminate_instance_impl(self):
         compute_client = self.auth.get_compute_client()
         network_client = self.auth.get_network_client()
 
-        auth_client = self.auth.get_authorization_client()
-        vm = self.get_virtual_machine()
+        self.auth.get_authorization_client()
+        self.get_virtual_machine()
 
         vm_poller = compute_client.virtual_machines.begin_delete(AzureServer.resource_group_name, self.vm_name(self.name))
         _ = vm_poller.result()
diff --git a/skyplane/gateway/gateway_obj_store.py b/skyplane/gateway/gateway_obj_store.py
index f5b9983f7..7742e54da 100644
--- a/skyplane/gateway/gateway_obj_store.py
+++ b/skyplane/gateway/gateway_obj_store.py
@@ -10,7 +10,6 @@
 from skyplane.chunk import ChunkRequest
 from skyplane.gateway.chunk_store import ChunkStore
 from skyplane.obj_store.object_store_interface import ObjectStoreInterface
-from skyplane.obj_store.s3_interface import S3Interface
 from skyplane.utils import logger
 from skyplane.utils.retry import retry_backoff
 
diff --git a/skyplane/obj_store/azure_blob_interface.py b/skyplane/obj_store/azure_blob_interface.py
index ac167c837..d502fbb31 100644
--- a/skyplane/obj_store/azure_blob_interface.py
+++ b/skyplane/obj_store/azure_blob_interface.py
@@ -2,9 +2,7 @@
 import hashlib
 import os
 from functools import lru_cache, partial
-from socket import timeout
 from typing import Iterator, List, Optional
-import uuid
 
 from azure.core.exceptions import ResourceExistsError, ResourceNotFoundError, HttpResponseError
 
diff --git a/skyplane/replicate/solver_ron.py b/skyplane/replicate/solver_ron.py
index fa46d8b3a..bfe7df91f 100644
--- a/skyplane/replicate/solver_ron.py
+++ b/skyplane/replicate/solver_ron.py
@@ -1,5 +1,4 @@
 import numpy as np
-from skyplane import GB
 
 from skyplane.replicate.solver import ThroughputSolver, ThroughputProblem, ThroughputSolution