My daily marketing job came out ~35x cheaper as a script with one AI call than as a live agent

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I run a one-person online course business in Korea, and AI agents do a lot of the daily marketing: posting, replying to people who show up, pulling numbers. The first time I automated a daily job, I let the agent do the whole thing live. It worked. It was also the most expensive way to do it. Here's what I'd tell anyone automating marketing for a small business, in the order I learned it.

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