diff --git a/.github/workflows/check-json.yml b/.github/workflows/check-json.yml
new file mode 100644
index 00000000..1f2f6d5d
--- /dev/null
+++ b/.github/workflows/check-json.yml
@@ -0,0 +1,26 @@
+name: Validate JSON Files
+
+on:
+  pull_request:
+    branches: [ master ]
+  workflow_dispatch:
+
+jobs:
+  run-script:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v7
+
+      - name: Set up Python
+        uses: actions/setup-python@v7
+        with:
+          python-version: '3.14'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r assets/base/scripts/requirements.txt
+
+      - name: Validate JSON files
+        run: python assets/base/scripts/validate-lang.py assets/base/lang/ --github
diff --git a/assets/base/scripts/requirements.txt b/assets/base/scripts/requirements.txt
new file mode 100644
index 00000000..a894311c
--- /dev/null
+++ b/assets/base/scripts/requirements.txt
@@ -0,0 +1 @@
+click>=8.4.2
diff --git a/assets/base/scripts/validate-lang.py b/assets/base/scripts/validate-lang.py
index 16501fcc..31fbc67c 100644
--- a/assets/base/scripts/validate-lang.py
+++ b/assets/base/scripts/validate-lang.py
@@ -1,16 +1,17 @@
 import json
 import os
+import sys
 import click
 
 def validate_json_from_file(file_path):
     try:
         with open(file_path, 'r', encoding='utf-8') as file:
             json.load(file)
-        return True, "Success"
+        return True, None, "Success"
     except json.JSONDecodeError as e:
-        return False, str(e)
+        return False, e.lineno, str(e)
     except FileNotFoundError:
-        return False, "File not found"
+        return False, None, "File not found"
 
 def validate_json_in_directory(directory):
     results = {}
@@ -18,25 +19,30 @@ def validate_json_in_directory(directory):
         for file in files:
             if file.endswith(".json"):
                 file_path = os.path.join(root, file)
-                success, reason = validate_json_from_file(file_path)
+                success, line, reason = validate_json_from_file(file_path)
                 if not success:
-                    results[file_path] = reason
+                    results[file_path] = (line, reason)
     return results
 
 @click.command()
 @click.argument('directory_path', default='.')
-def main(directory_path):
-    try:
-        results = validate_json_in_directory(directory_path)
-        if len(results) == 0:
-            print("Language files are valid!")
-        else:
-            for path, reason in results.items():
-                print(path + ": " + reason)
-            raise ValueError("Found syntax errors.")
-    except ValueError as ex:
-        print("Language files are NOT valid!", ex)
-        exit(1)
+@click.option('--github', is_flag=True, default=False, help="Emit GitHub Actions error annotations")
+def main(directory_path, github):
+    results = validate_json_in_directory(directory_path)
+    if len(results) == 0:
+        print("Language files are valid!")
+    else:
+        for path, (line, reason) in results.items():
+            rel_path = os.path.relpath(path)
+            if github:
+                if line:
+                    print(f"::error file={rel_path},line={line}::{reason}")
+                else:
+                    print(f"::error file={rel_path}::{reason}")
+            else:
+                print(f"{path}: {reason}")
+        print("Language files are NOT valid!")
+        sys.exit(1)
 
 if __name__ == "__main__":
     main()