Expo Core

Q: What is a Claude Code skill and how does the Expo Core skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Expo Core is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: mobile · Last updated: 2026-06-05

fw:react

Shared reference for the Expo cluster: EAS (Build/Submit/Update/Hosting), app config + config plugins, the Expo Go vs dev-client vs prebuild/CNG spectrum, SDK version policy, and Expo Router structure. USE WHEN configuring an Expo app, planning an EAS release, or upgrading the SDK — the platform model every Expo spoke shares. Pairs with react-native-core for the underlying RN runtime.

From the source SKILL.md

Shared model for the expo cluster. The Expo spokes all sit on these concepts — keep them consistent here. For the React Native runtime beneath Expo (New Architecture, Reanimated, navigation), see react-native-core.

What this skill does

Expo Core is a community-contributed Claude Code skill in the mobile sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/expo-core/ and loads when your prompt matches the skill's trigger.

When to invoke it: USE WHEN configuring an Expo app, planning an EAS release, or upgrading the SDK — the platform model every Expo spoke shares. Pairs with react-native-core for the underlying RN runtime.

Who uses this skill

The Expo Core Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 93,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/expo-core
curl -L https://claudskills.com/skills/expo-core/SKILL.md \
  -o ~/.claude/skills/expo-core/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/expo-core/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/expo-core/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\expo-core\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Expo Core Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/expo-core/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Expo Core skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Expo Core skill?

Use Expo Core when your Claude Code task falls under the Engineering category — specifically in the mobile area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Expo Core" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Expo Core skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Expo Core is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/Sheshiyer/skill-clusters/blob/HEAD/skills/expo-core/SKILL.md
License: MIT
Author: Sheshiyer

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

Sheshiyer. (2026). Expo Core [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/expo-core/

BibTeX

@misc{expo-core-2026,
  author    = {Sheshiyer},
  title     = {Expo Core [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/expo-core/}
}

Embed this skill

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Badge

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