Kai By Design
the kai by design notebook

Working Notes

One operator, several businesses, an AI system holding it together. These are the notes from building it — what worked, what broke, and the boring rules that turned out to be the whole thing.

new entries as they're earned · est. mmxxvi
entry v · august 7, 2026

The rule was written down. That's why it kept breaking.

I keep a document of rules for how my system is supposed to work — closer to two hundred of them now, each written the day something went wrong so it wouldn't go wrong again. For a long time I thought that number was the achievement. It was closer to the problem.

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earlier entries

Every stranger who emails me is talking to my AI too

july 31, 2026
It holds what I can't afford to leak, it reads messages from people I've never met, and it can send. Any one of those is fine. All three at once is a different animal.

Everyone's making their AI smarter. I made mine remember.

july 20, 2026
For a long time my AI was brilliant and useless in exactly the same way. It could reason through almost anything, and it forgot me every single morning.

None of it was impressive on its own

july 12, 2026
Someone asked me recently what I'd built. I opened my mouth and realized I couldn't point at anything — and that turned out to be the most important thing I've learned.

The model is the cheap part

july 3, 2026
Everyone's asking which model is the smartest. It's the wrong question, and it's quietly costing people a lot of time.
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These notes come from the same bench as the client work.
If your business could use a system like this, start at the front page.