Individual skill

n8n-expression-syntax

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.

n8n-expression-syntax/SKILL.md

Source commit 934118c81194d6587f2d45889c962d70c8bd511c

What was checked

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Observed behavior

Not checked yet

Last checked

Nov 11, 2026

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