What is the recommended validation profile for n8n nodes?

The 'runtime' profile is the recommended default for most use cases, as it provides a balanced check for required fields, value types, and allowed values without being overly restrictive.

How many iterations are typically needed to fix an n8n error?

Telemetry data suggests that a standard validation loop usually takes 2-3 iterations of 'validate → fix' cycles to reach a fully valid state.

Does this skill help with n8n expression syntax?

Yes, it specifically identifies 'invalid_expression' errors, such as missing brackets or syntax typos, and provides the corrected configuration logic.

What is n8n auto-sanitization?

It is a system that automatically fixes common operator structure issues, such as correctly adding or removing the 'singleValue' property for binary and unary operators during workflow updates.

Can I use this for production deployment checks?

Absolutely. You can use the 'strict' validation profile to check for best practices, performance concerns, and security issues before moving a workflow to production.

n8n Validation Expert

Name: n8n Validation Expert
Author: czlonkowski

byczlonkowski

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1,245

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生産性とワークフロー

Interprets n8n workflow validation errors and provides step-by-step guidance for debugging and fixing node configurations.

The n8n Validation Expert skill empowers Claude to diagnose and resolve errors within n8n workflows through a structured, iterative validation process. It guides users through different validation profiles—such as runtime, ai-friendly, and strict—to identify missing required fields, type mismatches, and expression syntax errors. By explaining the nuances of n8n's auto-sanitization system and distinguishing between blocking errors and optional warnings, this skill ensures that automation workflows are robust, production-ready, and logically sound.

主な機能

01Interprets multi-level error severity (Errors, Warnings, and Suggestions)

02Guides the iterative 'validate-fix' cycle based on telemetry patterns

03Supports multiple validation profiles including minimal, runtime, and ai-friendly

04Automates sanitization for binary and unary operators in IF/Switch nodes

05Identifies complex workflow issues like circular dependencies and broken connections

061,245 GitHub stars

ユースケース

01Debugging failed n8n node activations due to missing parameters or invalid expressions

02Applying production-grade validation checks to workflows before deployment

03Resolving operator structure issues and metadata mismatches in complex logic nodes

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add czlonkowski/n8n-skills n8n-validation-expert

For use in Claude.ai and ChatGPT

Download Skill