Agent skill

Android Persistence

Standards for Room Database and DataStore

View SKILL.md on GitHub Repository
Stars 163
Forks 31

Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/persistence

Metadata

Additional technical details for this skill

labels
android persistence room database
triggers 
{
    "files": [
        "**/*Dao.kt",
        "**/*Database.kt",
        "**/*Entity.kt"
    ],
    "keywords": [
        "@Dao",
        "@Entity",
        "RoomDatabase"
    ]
}

SKILL.md

Android Persistence Standards

Priority: P0

Implementation Guidelines

Room

  • Async: Return Flow<List<T>> for queries, use suspend for Write/Insert.
  • Entities: Keep simple @Entity data classes. Map to Domain models in Repository.
  • Transactions: Use @Transaction for multi-table queries (Relations).

DataStore

  • Usage: Replace SharedPreferences with ProtoDataStore (Type-safe) or PreferencesDataStore.
  • Scope: Inject singleton instance via Hilt.

Anti-Patterns

  • Main Thread: **No IO on Main**: Use Dispatchers.IO (Room helper does this, but verify flow collection).
  • Domain Leak: **No Entities in UI**: Map to Domain/UI Models.

References

  • DAO Templates

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