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Add Expo Secure Store

Community
khadinakbarlabs
add-expo-secure-store

Use expo-secure-store for secrets (tokens, API keys) backed by iOS Keychain. Use when the user says 'secure storage', 'Keychain', 'store token', 'API key storage'.

Overview

Publisherkhadinakbarlabs
Repositoryexpo-mobile-app-builder
Skill nameadd-expo-secure-store
Stars
3
Forks
0
Bundled files
2
LicenseMIT
Links
Skill sourceRepositoryHomepage
  • 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.

  • 2 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 Add Expo Secure Store 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/add-expo-secure-store
  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/add-expo-secure-store .claude/skills/add-expo-secure-store
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Add Expo Secure Store 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 Add Expo Secure Store 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 Add Expo Secure Store 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.

Add Expo Secure Store

Encrypted at-rest storage backed by iOS Keychain. Use for auth tokens, API keys, anything sensitive.

Install

bash
npm exec --no -- expo install expo-secure-store

Usage

ts
import * as SecureStore from 'expo-secure-store';

// Save
await SecureStore.setItemAsync('authToken', token);

// Read
const token = await SecureStore.getItemAsync('authToken');

// Delete
await SecureStore.deleteItemAsync('authToken');

// With biometric protection (Face ID / Touch ID required to unlock)
await SecureStore.setItemAsync('vaultKey', secret, {
  requireAuthentication: true,
  authenticationPrompt: 'Authenticate to access your vault',
});

ABSOLUTE NO

  • Never store tokens in AsyncStorage or MMKV (no encryption at rest)
  • Never store more than 2KB per item (Keychain limits — use expo-sqlite for larger)
  • Never call from main thread in tight loops (it's async, use it that way)

Add Face ID permission

json
{
  "expo": {
    "ios": {
      "infoPlist": {
        "NSFaceIDUsageDescription": "Access your secure vault"
      }
    }
  }
}

Reference

references/01-expo-sdk-54.md

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 Add Expo Secure Store AI skill do?

Use expo-secure-store for secrets (tokens, API keys) backed by iOS Keychain. Use when the user says 'secure storage', 'Keychain', 'store token', 'API key storage'.

Why use Add Expo Secure Store on TypingMind?

Because you install it once and use it with any model. Add Expo Secure Store 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 Add Expo Secure Store in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/khadinakbarlabs/expo-mobile-app-builder/tree/main/skills/add-expo-secure-store. 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 Add Expo Secure Store?

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 Add Expo Secure Store?

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

Is the Add Expo Secure Store 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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