David Lewis
Notes, essays, and technical writing.
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Slop is a standards problem
AI slop is real. The diagnosis is wrong. Slop is what AI does when no one sets the standard — and the same technology can elevate the bar instead, if you choose to use it that way.
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Evolving Agile in the age of AI agents
The agile practices that survived AI-assisted development weren't the process ones — they were the philosophical ones. A look at what changed and what stayed when building a real product with AI agents.
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The incomplete history of Design Tokens
A thirty-year story about a single idea: that design decisions should be named, shared, and separated from the things they style — from Håkon Wium Lie's 1994 proposal to the W3C specification.
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Goal-Driven Development with AI Agents
Starting with a real problem — the "did we get cinnamon sticks?" moment in the kitchen — and figuring out the solution as you go. Part 1 of a series on building a real product with AI agents.
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If Your Meeting Needs People From Five Teams, Something's Broken
When delivering one idea requires five teams in a room, that's not a planning problem — it's a structural one. On value streams and why cross-functional engineering teams are only halfway to the goal.