Open Notebook

Blog

Everything I've published — essays, code, demos, and half-baked ideas.

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BlogApr 12, 2026·8 min read

The Golden Age of PM: From Writing PRDs to Shipping Production Code

Execution is becoming the new moat. The most dangerous PM in any room is no longer the one with the best strategy deck — it's the one who can open a terminal and ship a working demo before the meeting ends.

#AI#Product Management#Builder Stack
BlogMar 28, 2026·6 min read

Evals Are the New Product-Market Fit

Why a robust evaluation pipeline is the most underrated competitive moat in AI products today, and how to start building one without a research team.

#AI Evals#Responsible AI#Quality
CodeMar 15, 2026·10 min read

Building a Minimal Eval Harness in an Afternoon

A small, opinionated repo template for getting from zero evals to a regression-tested AI feature in under four hours. Includes code.

#Code#AI Evals#Open Source
DemoFeb 20, 2026·Live demo

Demo: A Multi-Agent Research Assistant

A small interactive demo I built to explore how agent-of-agents architectures can outperform single-shot prompts on open-ended research questions.

#Demo#Agents#Architecture
IdeaApr 2, 2026·3 min read

Half-Baked Idea: What if PRDs Were Prompts?

A short provocation. If a PRD is just a structured description of intent, and an LLM can read structured descriptions of intent, what happens when the PRD becomes an executable artifact?

#Idea#Future of PM#Provocation
IdeaMar 5, 2026·4 min read

Half-Baked Idea: The Shape of PM Craft Is Changing

Notes on which parts of the PM job are getting easier, which are getting harder, and which are quietly disappearing.

#Idea#Future of PM#Career