Sam Bloomberg-Rissman

Notes

Essays on product, photography and the in-between. Long-form when it's worth it; nothing scheduled.

August 2026

Too small to tell. Say so.

I built an agentic system that runs marketing experiments end to end. Its most valuable output was a refusal to answer.

Product · Experimentation
July 2026

Your agent works. Prove it.

A single run isn't a measurement. Agents are nondeterministic, most teams score them as if they aren't, and the number that ends up on the slide is often quietly dishonest.

Product · Evals
June 2026

Show, don't tell.

No, AI isn't making product management obsolete. It just let me stop telling people things and start showing them.

Product · Craft
May 2026

Nobody gave it the address.

Your agent logic is probably fine. The information underneath it isn't. That's the job now.

Product · Data
May 2026

I asked Claude to build my MCP server. Here's what I actually got.

Standing up an MCP server took a day. Understanding what I built took longer. The interesting part wasn't the engineering.

Product · AI
Apr 2026

Don't build the agent. Enable the access.

Why the next twenty years of product work is about exposing capabilities to agents, not designing destinations for users.

Product · Strategy

Published from a single manifest — a new essay is one file plus one entry, and the home list updates itself.