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Optimising Expo React Native Performance

Checked
tristanmanchester·vlatest·frontend

Helps with Expo, React, performance optimization as part of building frontend UIs and user experiences workflows.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add tristanmanchester/agent-skills --skill optimising-expo-react-native-performance -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

tristanmanchester

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Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned tristanmanchester/agent-skills at 3323bc919a.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
3323bc919a
Manifest
optimising-expo-react-native-performance/SKILL.md
Scanned
15 files, 1,220 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill helps optimize the performance of React Native applications built with Expo. It provides guidance and suggestions for identifying bottlenecks, reducing bundle sizes, and improving rendering speed within an Expo project. The skill can assist in analyzing frame rates and suggesting code changes to enhance overall application responsiveness. Ultimately, this leads to a smoother user experience on mobile devices.

When to use it

  • You're experiencing slow loading times or laggy animations in your Expo React Native app.
  • Your app’s bundle size is too large, leading to longer download and install times.
  • You want to proactively improve the performance of a new Expo project before users encounter issues.
  • You need help identifying specific areas within your code that are contributing to performance problems.

Key capabilities

  • Performance bottleneck identification
  • Bundle size reduction strategies
  • Rendering optimization techniques
  • Frame rate analysis suggestions
  • Code change recommendations

Example prompts

  • "Analyze my Expo React Native app for performance bottlenecks."
  • "How can I reduce the bundle size of my Expo project?"
  • "Suggest ways to improve rendering speed in this component: [component code]"

Tips & gotchas

This skill assumes you have a basic understanding of React Native and Expo development. Performance optimization often involves trade-offs; consider carefully how changes affect other aspects of your application.