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Flutter Performance Docs

Checked
cantagestudio·vlatest·frontend

Helps with Flutter, 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 cantagestudio/cosmicatlaspacker --skill flutter-performance-docs -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

cantagestudio

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 cantagestudio/cosmicatlaspacker at 686ead8da4.

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

Commit
686ead8da4
Manifest
.claude/skills/flutter-performance-docs/SKILL.md
Scanned
2 files, 468 lines
Copies in repo
2 — all of them scanned
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 provides access to Flutter performance documentation. It allows users to understand and implement best practices for optimizing Flutter applications, covering topics like widget building, layout rendering, and memory management. The goal is to improve the responsiveness and efficiency of Flutter-based mobile apps.

When to use it

  • When debugging slow animations or UI updates in a Flutter app.
  • To optimize an existing Flutter application’s startup time.
  • During the development phase to proactively implement performance best practices.
  • When troubleshooting high memory usage within a Flutter application.

Key capabilities

  • Access to official Flutter performance documentation.
  • Guidance on optimizing widget building and rendering.
  • Information about memory management techniques in Flutter.
  • Strategies for improving app startup time.

Example prompts

  • "Explain how to profile a Flutter app."
  • "What are some common causes of slow frame rates in Flutter?"
  • "How can I reduce the size of my Flutter application bundle?"

Tips & gotchas

This skill assumes basic familiarity with Flutter development concepts. The documentation may contain technical terms and require some understanding of Dart programming.