Validate n8n JSON Workflows with GPT-4 & LangChain: Google Drive to Sheets

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Description: This advanced n8n automation template checks the validity and production-readiness of multiple JSON workflow files using AI-powered analysis. It scans a designated Google Drive folder for uploaded JSON files, downloads them one by one, parses their structure, and sends each JSON to GPT-4 via LangChain Agent for intelligent validation. Results are automatically logged into a Google Sheet with structured feedback. Ideal for QA analysts, workflow engineers, or product teams maintai