Writing

Notes from the work: AI engineering, product builds, and the operational half that makes systems hold.

3 posts · updated 2026

2026-09-18The unglamorous half of AIEvals, guardrails, and the unglamorous work that decides whether your demo survives contact with users.

2026-08-30Guardrails are a design materialWhy the safest agents are the ones whose tools make the wrong thing hard to do.

2026-07-22Tolerance is a specificationWhat nine years of shipping products taught me about the numbers nobody writes down.