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The JSON Parsed Fine and Was Still Wrong: Validating LLM Output in n8n

This is part of my build-in-public series on running LLM workflows in n8n in production. Everything here is from real templates I sell and support — the mistakes are mine, the fixes are tested. It parsed. It was still wrong. A workflow I ran for weeks had a step that asked an LLM to classify incomi…

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  1. 2026-10-31 17:39 · DEV Community — AI
    The JSON Parsed Fine and Was Still Wrong: Validating LLM Output in n8n

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