spark: json_check.py - validate JSON files from CLI

wizard-work/spark/json_check.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+"""json_check.py - Validate JSON files from command line."""
+import sys
+import json
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: json_check.py <file.json>", file=sys.stderr)
+        sys.exit(1)
+    
+    filepath = sys.argv[1]
+    
+    try:
+        with open(filepath, 'r') as f:
+            json.load(f)
+        print(f"VALID: {filepath}")
+        sys.exit(0)
+    except json.JSONDecodeError as e:
+        print(f"INVALID: {filepath} - {e}", file=sys.stderr)
+        sys.exit(1)
+    except FileNotFoundError:
+        print(f"NOT FOUND: {filepath}", file=sys.stderr)
+        sys.exit(2)
+
+if __name__ == "__main__":
+    main()