The whole algorithm can be expressed in psuedocode like so:
Author(s): Yukinari Ikeda, Akio Ishii
，这一点在搜狗输入法2026中也有详细论述
"inventoryItemChanges": {
I built a demo repo with two working implementations: one for 1Password CLI and one for macOS Keychain. You can clone it and try both in about five minutes.