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zustand

Zustand stores: state shapes and type sources, state-only stores

zustand is an agent skill from the LobeHub repository with the conventions for Zustand stores. It covers state shapes and where their types come from, the state-only store pattern that is now the default for new and migrated stores, replica-backed list and detail data, and selectors. The rules are specific. Shared store types are imported from @lobechat/types rather than from the database package. Lightweight list-item types are kept separate from full detail types, so a list type never extends a heavy detail type. Details are cached by id in maps such as xxxDetailMap, and a single currentDetail object is never held. Components read through selector aggregates in a selectors file instead of repeating ad-hoc selector functions. In the state-only pattern, the store holds state and nothing else. A separate private action file holds the replica slices and write helpers, and a public action file exposes the API as a singleton. The skill points to a reference on data structures for choosing list and detail shapes, and it notes that domains whose reads go through @lobechat/replica keep their data in id-keyed views with a bookkeeping field per view. It is for contributors adding or migrating a store in the LobeHub app. The skill passes Gen Agent Trust Hub, Socket and Snyk on skills.sh. Install it with npx skills add https://github.com/lobehub/lobehub --skill zustand.