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n8n-expression-syntax

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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.

n8n-expression-syntax/SKILL.md

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# n8n Expression Syntax

Expert guide for writing correct n8n expressions in workflows.

---

## Expression Format

All dynamic content in n8n uses **double curly braces**:

```
{{expression}}
```
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