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Javascript Fundamentals

Checked
manutej·vlatest·backend

Generates basic JavaScript code snippets and explains core concepts like variables, functions, and DOM manipulation.

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 manutej/luxor-claude-marketplace --skill javascript-fundamentals -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

manutej

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 manutej/luxor-claude-marketplace at 1861cc9720.

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

Commit
1861cc9720
Manifest
plugins/luxor-frontend-essentials/skills/javascript-fundamentals/SKILL.md
Scanned
3 files, 6,272 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 foundational JavaScript knowledge to AI agents, enabling them to understand core syntax, data types, and execution logic. It serves as a base layer for more complex backend operations involving server-side scripting or API interactions.

When to use it

  • Debugging basic script errors in Node.js environments.
  • Explaining variable scoping rules and closures to junior developers.
  • Generating simple utility functions for data manipulation.
  • Clarifying the difference between let, const, and var.

Key capabilities

  • Core syntax and control flow structures (loops, conditionals).
  • Understanding of primitive and reference data types.
  • Basic function declaration and execution models.
  • Fundamental DOM manipulation concepts for backend context.

Example prompts

  • "Explain how event loops work in JavaScript."
  • "Write a simple Node.js script to parse JSON data."
  • "What is the difference between == and === in JavaScript?"

Tips & gotchas

Ensure the AI agent has access to a runtime environment like Node.js to execute code snippets generated by this skill. Avoid relying on browser-specific APIs unless explicitly configured for frontend contexts.