Craft Phronesis

Aristotle used phronesis for practical wisdom: the judgment to act well in a particular situation. Craft Phronesis is about developing that judgment by doing the work.

I'm Jeremiah Weise. I lead product teams and build software. In fifteen years of product management, I've learned the most from being wrong about ideas I liked.

Today, much of that work involves AI, both in the products and in how we make them. I write about the decisions along the way: what we tried, what changed our thinking, and what I'm still unsure about. Alongside my full-time product work, I build Phronesis.

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A designer stood in for our software, and customers had notes

Before building automatic storefront styling, we had a designer do it by hand for a few customers. They liked the result and still had changes to make before launch, which changed what we built first.

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Every integration looked different on the roadmap

New customers kept needing integrations we didn't have, and each one pulled engineers off planned work. The way out started in Postman, where every integration turned out to be the same four steps.

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Our AI concierge made things up when the data ran out

Our AI concierge could tell when a question was in scope, but not whether it had the facts to answer. Having it say so and hand the question to a person is what made leasing teams comfortable with it.

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We rebuilt the platform. Some customers stayed on the old one.

The scope cut decided which customers would wait, and the small team decided what the wait would be like.

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Onboarding was hitting its numbers. Customers were still leaving.

Launch told us who had finished setup. Ongoing use told us who would stay.

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I made the case with a prototype. It took twenty minutes to build.

The video showed what to build. Twenty minutes showed how fast we could build it.

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The AI could sum up any account. We showed reps the numbers anyway.

The AI's read made prep faster. The numbers beside it let reps check it.

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Independent project

Phronesis

A local workspace that carries decisions, sources, and context from one AI session to the next. It captures what changed after the work and brings the relevant decisions back before your AI answers. You approve what becomes current, and everything stays in plain Markdown on your own disk.

Works with Claude Code and Codex.

Explore Phronesis

I'm a product leader in Phoenix, currently working on AI and platform capabilities for small-business software. Before that, I led product in marketing technology, business communications, and property-management software. Phronesis is a tool I built for myself to get the most out of Claude Code and Codex for knowledge work and coding.

All writing