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n8n-expression-syntax

An AI agent skill from czlonkowski/n8n-skills, scored 65 out of 100 by code.

65/ 100C

Code score by group

  • Spec18/20
  • Description12/20
  • Procedure12/15
  • Done criteria8/15
  • Resources7/10
  • Scripts2/8
  • Safety3/7
  • Upkeep3/5

It loses the most points in Description (8), the group that checks whether the description says what the skill does and when to use it.

What the author says it does

Validate n8n expression syntax and fix common errors. Use when writing n8n expressions, using {{}} syntax, accessing $json/$node variables, troubleshooting expression errors, mapping data between nodes, or referencing webhook data in workflows. Use this skill whenever configuring node fields that reference data from previous nodes — expressions are how n8n passes data between nodes, and getting the syntax wrong is the most common source of workflow errors. Also use when asked whether a complex expression hurts performance.

This is the description in the skill's own SKILL.md, written by its author, not by SkillCheatSheet.

Repository
czlonkowski/n8n-skills
Folder
skills/n8n-expression-syntax
License
MIT
GitHub stars
6,634
SKILL.md lines
698
Other files
3

Add n8n-expression-syntax to your agent

npx skills add czlonkowski/n8n-skills --skill n8n-expression-syntax

The command uses the open skills CLI. A skill is instructions and scripts your agent will follow, so read it first: open the folder on GitHub at the commit that was scored.

Labelled for

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All skills in czlonkowski/n8n-skills

Scores come from a snapshot of 300 public GitHub repositories taken on 12 November 2026. Every score is the result of fixed checks run by code; no AI is involved. How scoring works.