N8n Expression Syntax

If you've ever stared at an n8n workflow wondering why your webhook data isn't showing up, this will save you hours. The single biggest gotcha is that webhook payloads live under `$json.body`, not `$json` directly, and this skill drills that into your head with examples. Beyond that, it covers the double brace syntax, proper node referencing with quotes, when to skip expressions entirely in Code nodes, and how to handle field names with spaces or special characters. The validation rules are practical, the common mistakes section maps errors to fixes, and the examples show real webhook-to-Slack and HTTP-to-email patterns. Worth having open when you're wiring nodes together and the data suddenly disappears between steps.

Install to Claude Code

npx -y skills add czlonkowski/n8n-skills --skill n8n-expression-syntax --agent claude-code