AI Engineering

Notes on making probabilistic systems shippable: evaluation harnesses, LLM judges, context engineering, agents, and the GCP estate underneath them. Everything here comes from production systems — method extracted from work, written to be reused.

2026-09-08 · outbound · observability · agents

Outbound Engineering

Most cold email fails before anyone reads it. This is a plain-language tour of outbound as one machine instead of a pile of tools: a warmed-up sending domain kept away from your main one, a prospect list where every address comes with its evidence, campaigns run as experiments against real Gmail and Outlook, follow-ups that react to what people do, and a handoff that gets a warm lead to a human in under a minute.

Read →

Related: the case study on evaluation gates for a 700,000-student agent system, the GCP dossier, and the working papers on agent harnesses and structural waste.