diff --git a/.github/workflows/pylint.yml b/.github/workflows/pylint.yml
new file mode 100644
index 00000000..37596421
--- /dev/null
+++ b/.github/workflows/pylint.yml
@@ -0,0 +1,22 @@
+# SPDX-FileCopyrightText: Copyright (c) 2021-2025 Yegor Bugayenko
+# SPDX-License-Identifier: MIT
+name: pylint
+"on":
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+jobs:
+  pylint:
+    timeout-minutes: 15
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.11
+      - run: |
+          pip install pylint
+          pylint --load-plugins=custom_checkers -d all -e C0411 .
diff --git a/metrics/getset.py b/metrics/getset.py
index a45b1d4c..8501170c 100755
--- a/metrics/getset.py
+++ b/metrics/getset.py
@@ -5,6 +5,7 @@
 # This metric counts the number of getter and setter methods in a class.
 
 import sys
+from typing import Final
 from javalang import tree, parse
 
 sys.setrecursionlimit(10000)
@@ -29,8 +30,8 @@ def analyze_method(method: tree.MethodDeclaration) -> str | None:
 
 
 if __name__ == '__main__':
-    java = sys.argv[1]
-    metrics = sys.argv[2]
+    java: Final[str] = sys.argv[1]
+    metrics: Final[str] = sys.argv[2]
 
     getter_count = 0
     setter_count = 0