How do I install the Expo Developer Tools skill?

Run npx skillmds@latest add simiancraft/expo-developer-tools 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.

Is Expo Developer Tools safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Expo Developer Tools?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Expo Developer Tools free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Expo Developer Tools?

simiancraft (@simiancraft) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Expo Developer Tools by simiancraft

Name: Expo Developer Tools
Author: simiancraft

Expo Developer Tools

Read and use the Expo / React Native in-app developer tools: the developer menu (reload, go home, performance monitor, element inspector, Open DevTools, and fast refresh) and React Native DevTools (Console, Sources, Network, Memory, Performance, Components, and Profiler), plus Rozenite plugins. The tools are identical on iOS and Android; only the gesture that opens the menu differs, so this skill is the shared home referenced by both the iOS-simulator and Android-emulator skills. This is the reference for reading these tools (what each shows and how to interpret it), not a driver. Use for "open the Expo dev menu", "read the performance monitor", "use the element inspector", or "inspect a component / a slow re-render with React Native DevTools".

simiancraft a36d32a 6 files · 14.7 KB Updated Sep 17, 2026

File contents

Expo Developer Tools (shared iOS + Android)

The in-app developer tooling of an Expo / React Native app: the developer menu and the React Native DevTools it opens. This surface is a React Native feature, so it is the same on iOS and Android; the only platform-divergent part is the gesture that opens the menu. That is why this is a shared skill: ios-simulator / expo-ios-simulator and android-emulator-harness each say how to open the menu on their platform, then point here for what the items and panels mean.

This skill is the interpretive field guide: what each tool shows and how an agent reads it. It is not a driver; driving the app lives in the platform simulator/emulator skills.

Layout (in the order you meet the tools)

references/opening.md: the open-gesture matrix (the one platform-divergent thing).
references/dev-menu.md: the developer-menu items, top to bottom as the app presents them.
references/react-native-devtools.md: the panels behind "Open DevTools".
references/rozenite.md: Rozenite plugins, the escape hatch when a built-in panel is not enough.
references/techniques.md: cross-tool techniques (named after the technique), at the bottom.

Out of scope

Driving the app (tapping, typing, screenshots) -> the platform skills. Web debugging (Chrome DevTools, Playwright) -> the web skills; the web diverges from this mobile menu entirely.

---name: expo-developer-toolsdescription: Read and use the Expo / React Native in-app developer tools: the developer menu (reload, go home, performance monitor, element inspector, Open DevTools, and fast refresh) and React Native DevTools (Console, Sources, Network, Memory, Performance, Components, and Profiler), plus Rozenite plugins. The tools are identical on iOS and Android; only the gesture that opens the menu differs, so this skill is the shared home referenced by both the iOS-simulator and Android-emulator skills. This is the reference for reading these tools (what each shows and how to interpret it), not a driver. Use for "open the Expo dev menu", "read the performance monitor", "use the element inspector", or "inspect a component / a slow re-render with React Native DevTools".---# Expo Developer Tools (shared iOS + Android)The in-app developer tooling of an Expo / React Native app: the **developer menu** and the**React Native DevTools** it opens. This surface is a React Native feature, so it is the **sameon iOS and Android**; the only platform-divergent part is the gesture that opens the menu. Thatis why this is a shared skill: **ios-simulator** / **expo-ios-simulator** and**android-emulator-harness** each say how to open the menu on their platform, then point here forwhat the items and panels mean.This skill is the **interpretive field guide**: what each tool shows and how an agent reads it. Itis not a driver; driving the app lives in the platform simulator/emulator skills.## Layout (in the order you meet the tools)1. `references/opening.md`: the open-gesture matrix (the one platform-divergent thing).2. `references/dev-menu.md`: the developer-menu items, top to bottom as the app presents them.3. `references/react-native-devtools.md`: the panels behind "Open DevTools".4. `references/rozenite.md`: Rozenite plugins, the escape hatch when a built-in panel is not enough.5. `references/techniques.md`: cross-tool techniques (named after the technique), at the bottom.## Out of scopeDriving the app (tapping, typing, screenshots) -> the platform skills. Web debugging (ChromeDevTools, Playwright) -> the web skills; the web diverges from this mobile menu entirely.

Frequently asked questions