Validates and repairs n8n workflow expressions to ensure accurate data mapping and error-free automation.
This skill provides comprehensive guidance for writing, debugging, and optimizing expressions within n8n workflows. It specializes in the double-curly-brace {{}} syntax, mapping complex data structures from previous nodes using $json and $node variables, and correcting common mistakes like incorrect webhook data paths or case-sensitivity issues in node names. By enforcing best practices for Luxon date formatting and bracket notation for spaced names, it helps developers build more resilient automation logic.
Key Features
01Guidance on using Luxon-powered $now for advanced date formatting
02Accurate syntax for referencing external workflow nodes with $node
03Identification of contexts where expressions should be avoided, such as Code nodes
04Validation of double curly brace {{}} expression syntax
0540 GitHub stars
06Correct pathing for Webhook node data under .body properties
Use Cases
01Troubleshooting 'Cannot read property of undefined' errors in n8n workflows
02Correctly mapping incoming webhook payloads to downstream notification nodes
03Dynamically formatting dates and timestamps for external API requests
