n8n-expression-syntax

SKILL.md

Most Common Mistake: Webhook data is NOT at the root!

Why: Webhook node wraps incoming data under .body property to preserve headers, params, and query parameters.

| $json.field | {{$json.field}} | | {{$json.field name}} | {{$json['field name']}} | | {{$node.HTTP Request}} | {{$node["HTTP Request"]}} | | {{{$json.field}}} | {{$json.field}} | | {{$json.name}} (webhook) | {{$json.body.name}} | | '={{$json.email}}' (Code node) | $json.email |

Validate n8n expression syntax and fix common errors. Use when writing n8n expressions, using {{}} syntax, accessing $json/$node variables, troubleshooting expression errors, or working with webhook data in workflows. Source: czlonkowski/n8n-skills.

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