n8n-validation-expert

What problem does it solve?

This Skill helps engineers interpret and fix n8n workflow validation failures quickly, reducing debugging time and guiding systematic improvement of automation configurations.

Core Features & Use Cases

• Understand error taxonomy (missing_required, invalid_value, type_mismatch, invalid_expression, invalid_reference) and how to triage warnings and auto-sanitization tips.
• Apply Validation Profiles (minimal, runtime, ai-friendly, strict) to tailor checks for development, testing, or production deployment.
• Auto-sanitization on save: automatic fixes for operator structure and essential metadata, reducing manual edits.
• Recovery patterns and practical workflows: progressive validation, error triage, and using get_node_essentials to identify required fields.
• Documentation and integration guidance: align with ERROR_CATALOG.md, FALSE_POSITIVES.md, and n8n validation APIs.

Quick Start

1. Run a quick validation for a node using the runtime profile, e.g. validate_node_operation({ nodeType: "nodes-base.slack", config: { channel: "#general" }, profile: "runtime" }).
2. If errors appear, consult get_node_essentials to identify missing required fields, fix the configuration, and re-run validation.
3. Save the workflow to trigger auto-sanitization fixes via n8n_autofix_workflow({ id: "workflow-id", applyFixes: true }).