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Write and fix n8n expressions v1.0.0

Use this resource to write and fix the n8n expressions that connect nodes

New

  • 494 downloads
  • 180 likes
  • 192 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install write-n8n-expressions-correctly

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent writes expressions inside double braces, fixes access to nested fields and webhook data, then explains reference errors. It also notes whether a complex expression could affect performance.

Mostly picked by

Updated November 2, 2026

Card for the “Write and fix n8n expressions” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: expression format and core variables
  • COMMON_MISTAKES.md: frequent mistakes and their fixes
  • EXAMPLES.md: examples of data access

Good fit for

  • A field shows an expression error after a Webhook node
  • You want to pull a value produced by an earlier node

Not for

    Tags

    • n8n
    • expressions
    • syntax
    • data

    About

    You say

    “Pull the customer name from the webhook body into the email field.”

    Card for the “Write and fix n8n expressions” skill

    Skill published by czlonkowski under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to write and fix the n8n expressions that connect nodes
    3. Review and adjust the result

    Content preview

    Files

    • COMMON_MISTAKES.md12.5 KB
    • EXAMPLES.md8.8 KB
    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • README.md2.7 KB
    • SKILL.md23.5 KB

    Origin and licence

    Listed unmodified

    Author
    czlonkowski
    Source
    github.com/czlonkowski/n8n-skills/tree/e037563e101749e630e6688d121d04529fe6ee7b/skills/n8n-expression-syntax
    Licence
    MIT

    Notice

    « n8n-expression-syntax » (czlonkowski, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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