Developer builds n8n workflow to auto-post daily AI video prompts with generated clips

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A developer created a six-node n8n automation that pulls one AI video prompt per day from a public library of 150 Seedance 2 prompts, each paired with its generated clip, and posts it to Slack or Discord via webhook. The workflow requires no API keys or accounts, using a day-based index formula instead of randomisation to ensure consistent results across reruns and debugging sessions. After analysing all 150 prompts, the developer found a median length of just 152 characters, contradicting common advice that longer prompts yield better control over AI video output. Camera direction appeared in only 46% of prompts, while audio cues — present in just 15% — were identified as the most underused differentiator between a raw AI clip and a polished shot. About a third of the prompts used timestamped segments to describe scene changes rather than a single continuous action.

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