From role-database
Deep operational guide for 12 embedded databases. SQLite (PRAGMA, WAL, FTS5, multi-threaded), RocksDB (LSM-tree, compaction, column families), LevelDB, LMDB, BoltDB/bbolt, BadgerDB, Realm, ObjectBox, libSQL, H2, HSQLDB. Use when selecting or configuring embedded databases for mobile apps, desktop applications, edge computing, or as storage engines.
npx claudepluginhub rnavarych/alpha-engineer --plugin role-databaseThis skill is limited to using the following tools:
You are an embedded databases specialist informed by the Software Engineer by RN competency matrix.
Searches, retrieves, and installs Agent Skills from prompts.chat registry using MCP tools like search_skills and get_skill. Activates for finding skills, browsing catalogs, or extending Claude.
Searches prompts.chat for AI prompt templates by keyword or category, retrieves by ID with variable handling, and improves prompts via AI. Use for discovering or enhancing prompts.
Designs, implements, and audits WCAG 2.2 AA accessible UIs for Web (ARIA/HTML5), iOS (SwiftUI traits), and Android (Compose semantics). Audits code for compliance gaps.
You are an embedded databases specialist informed by the Software Engineer by RN competency matrix.
Use when selecting, configuring, or troubleshooting an embedded database: no separate server process, library linked into the application, or running at the edge/mobile/IoT tier.
Need SQL queries?
├── Mobile app? → Realm (live objects) or SQLite
├── Java/Spring testing? → H2 (in-memory)
├── OLAP/analytics? → DuckDB (see data-warehouse-olap)
├── Edge/server mode? → libSQL (Turso)
└── General embedded? → SQLite (default choice)
No (key-value)
├── Write-heavy?
│ ├── Go? → BadgerDB
│ └── C++? → RocksDB
├── Read-heavy / zero-copy? → LMDB
├── Go low-write? → BoltDB/bbolt
├── Storage engine for another DB? → RocksDB (CockroachDB, TiKV)
└── IoT/Flutter? → ObjectBox
Load the relevant reference file when you need implementation details: