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Javascript Mastery

Checked
xfstudio·vlatest·backend

Generates, debugs, and optimizes complex Node.js/JavaScript backend code for xfstudio projects with expert precision.

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 xfstudio/skills --skill javascript-mastery -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

xfstudio

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 xfstudio/skills at 1bf6044db2.

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

Commit
1bf6044db2
Manifest
javascript-mastery/SKILL.md
Scanned
1 file, 598 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 advanced JavaScript capabilities to AI agents. It enables complex code generation, debugging assistance, and efficient manipulation of JavaScript data structures. The agent can leverage this skill to build web applications, automate scripting tasks, and understand existing JavaScript codebases.

When to use it

  • Web Development: Generate HTML, CSS, and JavaScript for a simple webpage based on user requirements.
  • Code Debugging: Analyze and identify errors in provided JavaScript snippets.
  • Script Automation: Create scripts to automate repetitive tasks involving file manipulation or data processing within a JavaScript environment.
  • JavaScript Code Understanding: Explain the functionality of existing JavaScript code blocks.

Key capabilities

  • Advanced Code Generation
  • Debugging Assistance
  • Data Structure Manipulation
  • Web Application Development Support
  • Script Automation

Example prompts

  • "Generate a JavaScript function to sort an array of objects by date."
  • "Debug this JavaScript code: [insert code snippet here]"
  • "Write a script that reads data from a CSV file and converts it into JSON format using JavaScript."

Tips & gotchas

The agent's performance is dependent on the complexity of the requested task. Break down large tasks into smaller, manageable steps for optimal results.