#!/usr/bin/env python3
import sys
import json
import datetime
import hashlib

def calculate_reversibility(steps):
    # Placeholder logic for reversibility
    total_cost = 0.0
    for step in steps:
        cost = step.get('cost', 0.1)
        total_cost += cost
    return total_cost

def main():
    print("Running Thermodynamic Planner...")
    # Logic to parse plan and output entropy/cost would go here
    print(json.dumps({"status": "simulated", "reversibility_cost": 0.5}))

if __name__ == "__main__":
    main()
