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The Workflow That Passed Every Test and Failed on Real Data: Production Payload Shapes in n8n

This is part of my build-in-public series on running LLM workflows in n8n in production. Everything here is a failure I actually watched happen, not a hypothetical. The workflow passed every test I wrote. Green on the happy path, green on the empty input, green on the retry. Then it met real data f…

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  1. 2026-11-03 05:36 · DEV Community — AI
    The Workflow That Passed Every Test and Failed on Real Data: Production Payload Shapes in n8n

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