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N8N Expression Syntax

Checked
promptadvisers·vlatest·productivity

This skill teaches you N8N's expression syntax for building powerful workflows by defining data transformations and logic directly within your automation.

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 promptadvisers/n8n-powerhouse --skill n8n-expression-syntax -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

promptadvisers

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 promptadvisers/n8n-powerhouse at 90fe35268a.

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

Commit
90fe35268a
Manifest
.claude/skills/n8n-expression-syntax/SKILL.md
Scanned
4 files, 1,273 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 AI agents to generate and understand n8n expression syntax. It can translate natural language requests into valid n8n expressions, helping users automate workflows without needing deep knowledge of the platform’s specific syntax. The skill provides assistance with constructing complex expressions for data manipulation and workflow logic within n8n.

When to use it

  • Automating repetitive tasks: Generate n8n expressions to automatically process data from various sources (e.g., CSV files, APIs).
  • Building custom workflows: Create more sophisticated n8n workflows by generating expressions for complex data transformations and conditional logic.
  • Learning n8n: Use the skill as a learning tool to understand how different functions and operators work within n8n expressions.
  • Debugging existing workflows: Get assistance in identifying and correcting errors in existing n8n expression code.

Key capabilities

  • Generates valid n8n expressions based on natural language descriptions.
  • Provides syntax guidance for various n8n operations.
  • Assists with constructing complex expressions involving data manipulation.
  • Supports conditional logic within n8n workflows.

Example prompts

  • "Generate an n8n expression to extract the email address from a JSON object."
  • "How do I use the 'split' function in n8n?"
  • “Create an n8n expression that checks if a number is greater than 10 and returns true or false.”

Tips & gotchas

The skill assumes some familiarity with n8n concepts. Providing clear and specific instructions about the desired outcome will lead to more accurate and useful expressions.