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ENGINEER · OPERATOR · @BMACBUILDS

I build AI machines that run in production, not in demos.

Fifteen years in marketing and lead generation. Now I build the systems that do it — and I run them in my own business before I put them in anyone else's.

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Brian MacDonald — @BmacBuilds, engineer and marketing operator

I don't write about AI I haven't run. Everything on this site is working in my own business first, and then I publish exactly how it was built — the agent that calls a new lead inside twenty seconds, qualifies it, books it and follows up, and the Claude Code hierarchy behind it running the daily operation with approval gates, so nothing spends money or sends a message without my yes.

That is what makes the beach chair test possible: Thursday morning I'm on Strands Beach at 7:30 and the business doesn't notice I'm gone. Five months, 519,192 lines of production code, one engineer — counted from the repositories, not estimated. The engineering record → · The whole story →

THE KIND OF PROBLEM I POINT AI AT

78% of buyers go with whoever responds first · median company takes 42 hours · only 7% hit the five-minute mark · ~9× swing on speed alone.

One example — speed to lead. Every operation has a dozen more. Finding yours is the job.

Which part of your week should a machine be doing?

Six questions, about a minute. At the end you get a straight read on what I'd build inside your company — even if the honest answer is “nothing yet”.