#!/usr/bin/env python3
"""Learner-visible mutation inventory; no repair or answer key is encoded."""
from pathlib import Path
root=Path(__file__).resolve().parent
required=[("narrow/min-content pressure",root/"starter/styles.css"),("LTR/RTL direction switch",root/"starter/app.js"),("visual-vs-DOM reorder",root/"starter/styles.css")]
for label,path in required: print(f"{'READY' if path.exists() else 'MISSING'} | {label}")