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N8N Code Javascript

Checked
czlonkowski·vlatest·backend·MIT

Generates and debugs JavaScript code snippets within n8n workflows to extend functionality and handle complex logic.

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 czlonkowski/n8n-skills --skill n8n-code-javascript -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

czlonkowski

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 czlonkowski/n8n-skills at 19cd793f47.

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

Commit
19cd793f47
Manifest
skills/n8n-code-javascript/SKILL.md
Scanned
6 files, 4,235 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

The n8n-code-javascript skill enables AI agents to write and execute JavaScript code within workflows, allowing for dynamic data manipulation, API interactions, and custom logic implementation. It integrates with n8n, a powerful workflow automation tool, making it ideal for developers who need to extend their automation capabilities using JavaScript.

When to use it

  • Automating complex data transformations that require custom logic.
  • Interacting with APIs or web services dynamically during workflows.
  • Building reusable functions or modules within n8n workflows.

Key capabilities

  • Execute arbitrary JavaScript code in workflow nodes.
  • Access and manipulate data from previous workflow steps.
  • Integrate with external libraries and APIs using JavaScript.

Example prompts

  • "Write a JavaScript function to filter out all even numbers from an array."
  • "Use JavaScript to make a POST request to an API endpoint with the provided payload."
  • "Create a custom function that formats dates in ISO 8601 format."

Tips & gotchas

  • Ensure your JavaScript code is properly formatted and error-free, as runtime errors can halt workflow execution.
  • Be mindful of security implications when executing untrusted or user-provided code.