n8n-expression-syntax - Validate and fix n8n expressions
Validates n8n expression syntax, fixes common errors, and guides data access and transformation in workflows.
Tags
Updated: 2026-10-07Capabilities
Typical Inputs
Typical Outputs
What this skill does
- Validate expression syntax
- Fix common expression errors
- Reference previous node data
- Access webhook payload fields
- Query nested JSON with JMESPath
- Choose transformation mechanisms
- Assess expression performance
Inputs
- n8n expression strings
- Workflow node data
- Node configuration context
- Webhook payload structure
Outputs
- Validated expression guidance
- Corrected expression examples
- Data transformation recommendations
- Performance guidance
Requirements
- n8n workflow context