VERIFICATION RESULT
===================
Artifact: json_validate_simple.py
Purpose: Simple JSON validator utility
Status: WORKING

Tests Executed:
- Test 1 (valid JSON object): PASS
- Test 2 (valid JSON array): PASS  
- Test 3 (invalid JSON): PASS
- Test 4 (nonexistent file): PASS
- Test 5 (null JSON): PASS

All tests passed.