diff --git a/src/pre_commit_terraform/_cli.py b/src/pre_commit_terraform/_cli.py
index 70f7a70a3..2ad7c5e31 100644
--- a/src/pre_commit_terraform/_cli.py
+++ b/src/pre_commit_terraform/_cli.py
@@ -18,6 +18,9 @@ def invoke_cli_app(cli_args: list[str]) -> ReturnCodeType:
 
     Includes initializing parsers of all the sub-apps and
     choosing what to execute.
+
+    Returns:
+        ReturnCodeType: The return code of the app.
     """
     root_cli_parser = initialize_argument_parser()
     parsed_cli_args = root_cli_parser.parse_args(cli_args)
diff --git a/src/pre_commit_terraform/_cli_parsing.py b/src/pre_commit_terraform/_cli_parsing.py
index a51a6fc2b..4bdebf6d0 100644
--- a/src/pre_commit_terraform/_cli_parsing.py
+++ b/src/pre_commit_terraform/_cli_parsing.py
@@ -32,7 +32,11 @@ def attach_subcommand_parsers_to(root_cli_parser: ArgumentParser, /) -> None:
 
 
 def initialize_argument_parser() -> ArgumentParser:
-    """Return the root argument parser with sub-commands."""
+    """Return the root argument parser with sub-commands.
+
+    Returns:
+        ArgumentParser: The root parser with sub-commands attached.
+    """
     root_cli_parser = ArgumentParser(prog=f'python -m {__package__ !s}')
     attach_subcommand_parsers_to(root_cli_parser)
     return root_cli_parser
diff --git a/src/pre_commit_terraform/terraform_docs_replace.py b/src/pre_commit_terraform/terraform_docs_replace.py
index d92e9c6b8..d273d6dac 100644
--- a/src/pre_commit_terraform/terraform_docs_replace.py
+++ b/src/pre_commit_terraform/terraform_docs_replace.py
@@ -12,6 +12,7 @@
 
 
 def populate_argument_parser(subcommand_parser: ArgumentParser) -> None:
+    """Populate the parser for the subcommand."""
     subcommand_parser.description = (
         'Run terraform-docs on a set of files. Follows the standard '
         'convention of pulling the documentation from main.tf in order to '
@@ -47,13 +48,19 @@ def populate_argument_parser(subcommand_parser: ArgumentParser) -> None:
 
 
 def invoke_cli_app(parsed_cli_args: Namespace) -> ReturnCodeType:
+    """Run the entry-point of the CLI app.
+
+    Returns:
+        ReturnCodeType: The return code of the app.
+    """
     warnings.warn(
         '`terraform_docs_replace` hook is DEPRECATED.'
         'For migration instructions see '
         'https://github.com/antonbabenko/pre-commit-terraform/issues/248'
         '#issuecomment-1290829226',
         category=UserWarning,
-        stacklevel=1,  # It's should be 2, but tests are failing w/ values >1. As it's deprecated hook, it's safe to leave it as is w/o fixing it later.
+        stacklevel=1,  # It's should be 2, but tests are failing w/ values >1.
+        # As it's deprecated hook, it's safe to leave it as is w/o fixing it.
     )
 
     dirs: list[str] = []
@@ -65,24 +72,24 @@ def invoke_cli_app(parsed_cli_args: Namespace) -> ReturnCodeType:
 
     retval = ReturnCode.OK
 
-    for dir in dirs:
+    for directory in dirs:
         try:
-            procArgs = []
-            procArgs.append('terraform-docs')
+            proc_args = []
+            proc_args.append('terraform-docs')
             if cast_to('bool', parsed_cli_args.sort):
-                procArgs.append('--sort-by-required')
-            procArgs.extend(
+                proc_args.append('--sort-by-required')
+            proc_args.extend(
                 (
                     'md',
-                    f'./{dir}',
+                    f'./{directory}',
                     '>',
                     './{dir}/{dest}'.format(
-                        dir=dir,
+                        dir=directory,
                         dest=cast_to('str', parsed_cli_args.dest),
                     ),
                 ),
             )
-            subprocess.check_call(' '.join(procArgs), shell=True)
+            subprocess.check_call(' '.join(proc_args), shell=True)
         except subprocess.CalledProcessError as e:
             print(e)
             retval = ReturnCode.ERROR
diff --git a/tests/pytest/_cli_test.py b/tests/pytest/_cli_test.py
index a265102c4..262df81d7 100644
--- a/tests/pytest/_cli_test.py
+++ b/tests/pytest/_cli_test.py
@@ -23,7 +23,6 @@
 @pytest.mark.parametrize(
     ('raised_error', 'expected_stderr'),
     (
-        # pytest.param(PreCommitTerraformExit('sentinel'), 'App exiting: sentinel', id='app-exit'),
         pytest.param(
             PreCommitTerraformRuntimeError('sentinel'),
             'App execution took an unexpected turn: sentinel. Exiting...',
@@ -97,7 +96,7 @@ def invoke_cli_app(self, parsed_cli_args: Namespace) -> ReturnCodeType:
         [CustomCmdStub()],
     )
 
-    with pytest.raises(PreCommitTerraformExit, match='^sentinel$'):
+    with pytest.raises(PreCommitTerraformExit, match=r'^sentinel$'):
         invoke_cli_app(['sentinel'])
 
     captured_outputs = capsys.readouterr()