Validates and repairs n8n expression syntax to ensure seamless workflow automation and accurate data mapping.
This skill provides a specialized framework for writing and debugging n8n expressions, the backbone of n8n workflow automation. It helps developers master the double curly brace syntax, correctly reference data from previous nodes using $node and $json variables, and avoid the frequent pitfalls of webhook data nesting. By providing domain-specific guidance on variable scope, date formatting with Luxon, and bracket notation for complex node names, this skill ensures that your automation logic is robust, error-free, and correctly implemented across both standard nodes and specialized Code nodes.
Key Features
01Context-aware logic for differentiating between expression fields and Code nodes
02Correct mapping for webhook data structures by identifying .body nesting
03Syntax correction for common errors like incorrect casing or missing quotes
04Reference guides for $json, $node, $now, and $env core variables
050 GitHub stars
06Validation of double curly brace {{}} syntax and bracket notation
Use Cases
01Formatting dynamic timestamps and performing date math within expressions
02Correctly referencing data from upstream nodes with spaces in their names
03Troubleshooting 'undefined' property errors in complex workflow data paths
