expo-56

expo-56 is a plugin for Claude Code from mahdi-salmanzade/expo56-skill. Its manifest loads nothing; the 1 skill it bundles cost 391 tokens per session together, scanned A, original, MIT.

An offline reference for Expo SDK 56 and SDK 57, versions of the Expo toolkit for building React Native mobile apps.

In plain words
What is it for?
Building apps with SDK 56 or 57 and handling migrations from SDK 55 to 56 or from SDK 56 to 57.
Why use it?
It keeps guidance tied to specific Expo and React Native versions, including changes needed when moving between them.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Building apps with SDK 56 or 57 and handling migrations from SDK 55 to 56 or from SDK 56 to 57.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add mahdi-salmanzade/expo56-skill/plugin install expo-56
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/mahdi-salmanzade/expo56-skill

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for expo-56

README.md
[![agentmods](https://agentmods.dev/badge/plugins/mahdi-salmanzade/expo56-skill/expo-56/github.svg)](https://agentmods.dev/plugins/mahdi-salmanzade/expo56-skill/expo-56)
Your own site
<a href="https://agentmods.dev/plugins/mahdi-salmanzade/expo56-skill/expo-56"><img src="https://agentmods.dev/badge/plugins/mahdi-salmanzade/expo56-skill/expo-56/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for expo-56

Your own site · 80×15
<a href="https://agentmods.dev/plugins/mahdi-salmanzade/expo56-skill/expo-56"><img src="https://agentmods.dev/badge/plugins/mahdi-salmanzade/expo56-skill/expo-56.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 1 skill cost 391 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

expo-56 scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

expo-56/.claude-plugin/plugin.json · 24 lines

What it actually says

{
  "name": "expo-56",
  "version": "0.2.0",
  "description": "Authoritative, version-pinned offline reference for Expo SDK 56 and SDK 57. One skill, 21 bundled API references, covering both building on either release and the 55→56 / 56→57 migrations. SDK 57 is current (57.0.8, RN 0.86); SDK 56 is the previous supported release (56.0.17, RN 0.85). Audited against expo/expo source 2026-07-25.",
  "author": {
    "name": "Mahdi Salmanzade",
    "url": "https://github.com/mahdi-salmanzade"
  },
  "homepage": "https://github.com/mahdi-salmanzade/expo56-skill",
  "repository": "https://github.com/mahdi-salmanzade/expo56-skill",
  "license": "MIT",
  "keywords": [
    "expo",
    "expo-sdk-56",
    "expo-sdk-57",
    "react-native",
    "claude-code",
    "claude-skill",
    "expo-router",
    "eas",
    "sdk-migration"
  ]
}
Contents

What it installs

The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 391 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 24 lines scan A 3fe013cc0def

Subscribe to this mod's changes

expo-56 is a plugin published in the GitHub repository mahdi-salmanzade/expo56-skill (2 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.