The n8n Agent Mistake That's Costing Builders Money

A widely circulated thread argues most people building agents in n8n skip the one step that separates a demo from a production system: designing the agent first.

As agent frameworks proliferate, so do the predictable failure patterns. @mantap_ew argued that "most people building AI agents in n8n are making one expensive mistake" — they start wiring nodes together before they've designed what the agent is actually supposed to be. The fix, per the thread, is deceptively simple: design the agent first, then build.

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