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Agent-skills-standard android-persistence

Implement Room database schemas and DataStore preferences with proper async patterns in Android. Use when defining Room entities, DAOs, migrations, or replacing SharedPreferences with DataStore. (triggers: **/*Dao.kt, **/*Database.kt, **/*Entity.kt, @Dao, @Entity, RoomDatabase)

install
source · Clone the upstream repo
git clone https://github.com/HoangNguyen0403/agent-skills-standard
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/HoangNguyen0403/agent-skills-standard "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/android/android-persistence" ~/.claude/skills/hoangnguyen0403-agent-skills-standard-android-persistence && rm -rf "$T"
manifest: skills/android/android-persistence/SKILL.md
source content

Android Persistence Standards

Priority: P0

1. Configure Room Database

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

See DAO templates for Room DAO patterns.

2. Migrate to DataStore

  • Replace 
    SharedPreferences
    with 
    ProtoDataStore
    (type-safe) or 
    PreferencesDataStore
    .
  • Inject singleton DataStore instance via Hilt.

See DAO templates for DataStore migration patterns.

Anti-Patterns

  • No IO on Main Thread: Room handles dispatchers, but verify Flow collected off-main.
  • No @Entity in UI Layer: Map to Domain or UI models in Repository.

References