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N8N Code Javascript

Checked
shortknife·vlatest·backend·MIT

Generates JavaScript code snippets for n8n workflows to automate data transformations and integrations quickly.

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 shortknife/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

shortknife

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 shortknife/n8n-skills at d9c2872029.

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

Commit
d9c2872029
Manifest
skills/n8n-code-javascript/SKILL.md
Scanned
6 files, 4,128 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 allows you to execute custom JavaScript code within an n8n workflow. It provides a flexible way to manipulate data, perform complex calculations, or integrate with APIs not natively supported by n8n. The skill executes the provided JavaScript snippet and returns its result as the output of the node.

When to use it

  • Data Transformation: Modify data formats or structures that require custom logic beyond standard n8n operations.
  • API Integration: Interact with APIs lacking pre-built n8n integrations by crafting custom API requests within JavaScript.
  • Complex Calculations: Perform intricate calculations or algorithms that are difficult to express using n8n's expression editor.
  • Dynamic Logic: Implement conditional logic or branching based on data values, allowing for more sophisticated workflow control.

Key capabilities

  • Execute arbitrary JavaScript code.
  • Return the result of the JavaScript execution as node output.
  • Provides a flexible way to extend n8n's functionality.

Example prompts

  • "Calculate the square root of 144."
  • "Format this date string into ISO format: '2023-10-27'."
  • "Make an HTTP POST request to this URL with these parameters: [parameters]"

Tips & gotchas

  • Requires a basic understanding of JavaScript. Incorrect syntax or errors in the code will cause the node to fail.
  • Be mindful of security implications when executing custom code, especially if it interacts with external APIs.