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Practical AI for people running a business, not studying it. I'm Jim Christian. I write about using AI with no breathless futurism, and no doom.
Field Note: Five words for the same thing At the moment there are no fewer than five phrases going round that all describe the same work, and if you’re trying to work out which one to learn first, I have good news. The phrases are: - Prompt engineering - Context engineering - Agent engineering - Workflow engineering - Graph engineering They aren’t five subjects. Rather, they’re five views of the same system, and they overlap more than the names suggest: Prompt engineering is what you type....
Signal Over Noise Vol 2, Issue 30 | Jul 31 2026 Don’t have time to read this week’s issue? Why not copy/paste it into your AI agent and ask it for insights? Last week I told you to give your AI a writing system, citing ASD-STE100, the controlled English that the aerospace industry built in the 1980s so its instructions couldn’t be misread. I said that complaining your AI “sounds like AI” is pointless if you never told it how to write. Three days later Anthropic published a piece saying they...
Field Note: The open-source argument I'd been missing In June I wrote about Banco Santander open-sourcing its AI tooling — the bank published the code that tests whether its own models discriminate against people. I gave the usual reasons that’s a good thing: outside scrutiny, verifiable claims, a governance document you can read for yourself. Jofish Kaye wrote back with a better one. He’s a friend, a subscriber, general mensch, and he’s VP of Research at Inflection AI, so he’s seen this from...