import json
from pathlib import Path
store={'reader-a|river-notes':{'chapter':2,'question':'why remeasure'},'reader-a|sampling-guide':{'chapter':1},'reader-b|river-notes':{'chapter':1}}
Path('book-records-starter.json').write_text(json.dumps(store,indent=2))
store['reader-a|river-notes']['chapter']=3;Path('book-records-reference.json').write_text(json.dumps(store,indent=2))
# Reload from disk to represent a new conversation process reading durable business records.
new_session=json.loads(Path('book-records-reference.json').read_text())
assert len(new_session)==3 and new_session['reader-a|river-notes']['chapter']==3 and new_session['reader-b|river-notes']['chapter']==1
print('3 durable book records; same user/book updated; new load gets chapter3; reader-b stays chapter1. Local reference, not Coze auth verification.')