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Svelte5 Best Practices

Listed
julien-blanchon·vlatest·frontend·Apache-2.0

Ensures Svelte 5 code adheres to Julien Blanchon's recommended best practices for maintainable, performant frontends.

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 julien-blanchon/montelimar --skill svelte5-best-practices -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

julien-blanchon

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 failed 1 of 6 checks. A failure is not proof of bad intent; it means something in the code needs a human to look at it before you run it.

  • No undeclared network calls: failed

    Contacts 1 host that is neither well-known infrastructure nor declared in the skill's frontmatter: api.stripe.com.

    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.

    Hosts contacted

    api.stripe.comundeclared

    What it found

    • .claude/skills/svelte5-best-practices/references/sveltekit.md:30contacts api.stripe.com
      const response = await fetch('https://api.stripe.com/charges', {
    • .claude/skills/svelte5-best-practices/references/sveltekit.md:43contacts api.stripe.com
      const response = await fetch('https://api.stripe.com/charges', {

  • 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 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 julien-blanchon/montelimar at a406a36561.

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

Commit
a406a36561
Manifest
.claude/skills/svelte5-best-practices/SKILL.md
Scanned
8 files, 2,301 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 provides access to best practices for developing applications using Svelte 5. It offers guidance on efficient component structure, optimized performance techniques, and modern approaches to building robust and maintainable Svelte applications. The skill aims to improve code quality and developer productivity when working with the Svelte 5 framework.

When to use it

  • You're starting a new Svelte 5 project and want to ensure you follow established best practices from the beginning.
  • You’re refactoring an existing Svelte application and need guidance on how to improve its structure or performance.
  • You are encountering specific challenges in your Svelte 5 development workflow and seek advice for resolving them.
  • You're looking to learn about new features and patterns introduced with Svelte 5.

Key capabilities

  • Svelte 5 component architecture guidance
  • Performance optimization techniques for Svelte applications
  • Modern Svelte coding practices
  • Best practice recommendations for building robust Svelte apps

Example prompts

  • "What are the best practices for structuring a large Svelte 5 application?"
  • "How can I optimize the performance of my Svelte 5 component?"
  • "Show me an example of using stores effectively in Svelte 5."

Tips & gotchas

This skill assumes basic familiarity with Svelte and its core concepts. While it covers best practices, understanding fundamental Svelte principles is helpful for effective application of the advice provided.