How do I install the Flutter DB skill?

Run npx skillmds@latest add poorgramer-zack/flutter-db in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

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Is Flutter DB free to use?

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Who published Flutter DB?

Poorgramer-Zack (@poorgramer-zack) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Flutter DB by poorgramer-zack — Agent Skill

Name: Flutter DB
Author: Poorgramer-Zack

Flutter DB

Local database and persistence selection for Flutter including SharedPreferences, SecureStorage, Hive, and Drift. Use when implementing offline storage, encrypted data persistence, or choosing between key-value and relational local databases.

Poorgramer-Zack 74f1683 6 files · 25.2 KB Updated Sep 17, 2026

File contents

Database Architecture Guide (Flutter)

Goal

Implement robust, scalable, and secure local persistence strategies for Flutter applications. This skill ensures developers choose the optimal storage engine—balancing simple key-value settings, encrypted sensitive data, high-performance NoSQL object stores, and complex relational databases.

Process

🚀 High-Level Workflow

Selecting the right persistence layer depends on data sensitivity, complexity, and relationship depth.

Phase 1: Key-Value Persistence (Simple & Secure)

Use lightweight stores for settings and sensitive credentials.

Shared Preferences Guide - Non-sensitive settings and flags using static wrappers.
Secure Storage Guide - Encrypted storage for tokens and passwords.

Phase 2: High-Performance Object Storage (NoSQL)

For local-first apps requiring fast read/write of large datasets without complex relations.

Hive CE (Synchronous NoSQL) - Blazing fast object store for local caching and offline data.

Phase 3: Complex Relational Schemas (SQL)

For apps requiring strict data integrity, transactions, and complex queries.

Drift (Reactive SQL) - Type-safe relational database built on top of SQLite.

📚 Documentation Library

Refer to these specialized resources to implement your chosen persistence strategy:

Constraints

Type Safety: Prohibit raw dynamic data access. Always use generated classes (Drift) or typed static wrappers (SharedPreferences/SecureStorage).
Sensitivity Awareness: Force use of Secure Storage for any tokens, passwords, or PII. Never store sensitive data in SharedPreferences or unencrypted Hive boxes.
Singleton Access: Access storage instances via DI (Riverpod) or strictly defined static classes to prevent key fragmentation.
Performance Balance: Use NoSQL (Hive) for high-frequency reads and SQL (Drift) for complex relationships. Don't over-engineer simple apps with SQL.

---name: flutter-dbdescription: Local database and persistence selection for Flutter including SharedPreferences, SecureStorage, Hive, and Drift. Use when implementing offline storage, encrypted data persistence, or choosing between key-value and relational local databases.---# Database Architecture Guide (Flutter)## GoalImplement robust, scalable, and secure local persistence strategies for Flutter applications. This skill ensures developers choose the optimal storage engine—balancing simple key-value settings, encrypted sensitive data, high-performance NoSQL object stores, and complex relational databases.## Process### 🚀 High-Level WorkflowSelecting the right persistence layer depends on data sensitivity, complexity, and relationship depth.### Phase 1: Key-Value Persistence (Simple & Secure)Use lightweight stores for settings and sensitive credentials.- [Shared Preferences Guide](./references/shared-preferences.md) - Non-sensitive settings and flags using static wrappers.- [Secure Storage Guide](./references/secure-storage.md) - Encrypted storage for tokens and passwords.### Phase 2: High-Performance Object Storage (NoSQL)For local-first apps requiring fast read/write of large datasets without complex relations.- [Hive CE (Synchronous NoSQL)](./references/hive-ce.md) - Blazing fast object store for local caching and offline data.### Phase 3: Complex Relational Schemas (SQL)For apps requiring strict data integrity, transactions, and complex queries.- [Drift (Reactive SQL)](./references/drift.md) - Type-safe relational database built on top of SQLite.---## 📚 Documentation LibraryRefer to these specialized resources to implement your chosen persistence strategy:- [🗄️ Database Architecture Overview](./references/databases-overview.md)- [⚙️ Shared Preferences](./references/shared-preferences.md)- [🔐 Secure Storage (Encrypted)](./references/secure-storage.md)- [🐝 Hive CE Best Practices](./references/hive-ce.md)- [🐘 Drift (SQL) Best Practices](./references/drift.md)## Constraints* **Type Safety**: Prohibit raw `dynamic` data access. Always use generated classes (Drift) or typed static wrappers (SharedPreferences/SecureStorage).* **Sensitivity Awareness**: Force use of `Secure Storage` for any tokens, passwords, or PII. Never store sensitive data in SharedPreferences or unencrypted Hive boxes.* **Singleton Access**: Access storage instances via DI (Riverpod) or strictly defined static classes to prevent key fragmentation.* **Performance Balance**: Use NoSQL (Hive) for high-frequency reads and SQL (Drift) for complex relationships. Don't over-engineer simple apps with SQL.

Frequently asked questions