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Choose Storage

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khadinakbarlabs
choose-storage

Decide storage layer for an Expo app: expo-sqlite + drizzle vs MMKV vs SecureStore vs AsyncStorage vs Zustand persist. Use when the user says 'storage', 'database', 'where to save data', 'AsyncStorage vs MMKV', 'expo-sqlite'.

Overview

Publisherkhadinakbarlabs
Repositoryexpo-mobile-app-builder
Skill namechoose-storage
Stars
3
Forks
0
Bundled files
1
LicenseMIT
Links
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • 1 bundled files

    Scripts, templates, and references the model can read while it works. Files are read-only and never executed.

  • Open source

    Published by khadinakbarlabs on GitHub. Read the source before you install it.

Installation

Install the Choose Storage AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/khadinakbarlabs/expo-mobile-app-builder/tree/main/skills/choose-storage
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/khadinakbarlabs/expo-mobile-app-builder.git /tmp/expo-mobile-app-builder
mkdir -p .claude/skills
cp -r /tmp/expo-mobile-app-builder/skills/choose-storage .claude/skills/choose-storage
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Choose Storage in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Choose Storage on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Choose Storage is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Choose Storage

Pick the right Expo storage primitive.

Decision tree

  • Tokens, passwords, API keys → expo-secure-store (Keychain on iOS)
  • Tiny preferences (<10 keys) → AsyncStorage or Zustand persist
  • Fast key/value (>10 keys, frequent reads) → MMKV (react-native-mmkv)
  • Structured data, complex queries → expo-sqlite + drizzle-orm
  • Large blobs / images → expo-file-system
  • Cross-device sync → CloudKit private DB (requires native bridge or expo-cloud-storage if available)

expo-secure-store

ts
import * as SecureStore from 'expo-secure-store';
await SecureStore.setItemAsync('authToken', token);
const token = await SecureStore.getItemAsync('authToken');

MMKV

bash
npm install react-native-mmkv
ts
import { MMKV } from 'react-native-mmkv';
export const storage = new MMKV();
storage.set('user.id', '123');
const id = storage.getString('user.id');

~30x faster than AsyncStorage. Sync API.

expo-sqlite + drizzle

bash
npm exec --no -- expo install expo-sqlite
npm install drizzle-orm
npm install -D drizzle-kit
ts
import { drizzle } from 'drizzle-orm/expo-sqlite';
import * as SQLite from 'expo-sqlite';

const sqlite = SQLite.openDatabaseSync('app.db');
export const db = drizzle(sqlite);

ABSOLUTE NO

  • Never store auth tokens in AsyncStorage or MMKV (no encryption at rest)
  • Never put images in expo-sqlite (use expo-file-system)
  • Don't pick CoreData via native bridge unless you specifically need NSPersistentCloudKitContainer features

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Choose Storage AI skill do?

Decide storage layer for an Expo app: expo-sqlite + drizzle vs MMKV vs SecureStore vs AsyncStorage vs Zustand persist. Use when the user says 'storage', 'database', 'where to save data', 'AsyncStorage vs MMKV', 'expo-sqlite'.

Why use Choose Storage on TypingMind?

Because you install it once and use it with any model. Choose Storage is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Choose Storage in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/khadinakbarlabs/expo-mobile-app-builder/tree/main/skills/choose-storage. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Choose Storage?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Choose Storage?

As many as you like. As long as a model supports skills, you can use Choose Storage with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Choose Storage AI skill free?

Yes. It is published on GitHub by khadinakbarlabs under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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