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React Render Performance

Checked
jonmumm·vlatest·frontend

Helps with 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 jonmumm/skills --skill react-render-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

jonmumm

Taken from the source listing. We haven't verified who controls this account.

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 jonmumm/skills at e5281df6bf.

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

Commit
e5281df6bf
Manifest
react-render-performance/SKILL.md
Scanned
1 file, 292 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 improve React application rendering performance. It analyzes component render patterns and suggests optimizations to reduce unnecessary re-renders, leading to a smoother user experience. The skill focuses on identifying and mitigating performance bottlenecks within React components.

When to use it

  • Slow UI responsiveness: When users report delays or lag when interacting with your React application.
  • High CPU usage: If your application consistently consumes excessive CPU resources, especially during rendering.
  • Complex component trees: When dealing with deeply nested or frequently updated components that might be causing performance issues.
  • Debugging render bottlenecks: To quickly pinpoint the specific components contributing to slow rendering times.

Key capabilities

  • Component Render Analysis
  • Unnecessary Re-render Detection
  • Performance Bottleneck Identification
  • Optimization Suggestions

Example prompts

  • "Analyze the rendering performance of my ProductList component."
  • "Identify any unnecessary re-renders in this React application."
  • "Suggest optimizations for slow rendering components."

Tips & gotchas

This skill is most effective when applied to complex or frequently updated React applications. It requires access to the codebase and may require adjustments based on specific project architecture.