● FIELD NOTESNotes from
Notes from
the field.
Engineering, eval, and the boring infrastructure of production AI. Four launch posts below. Sixteen by the end of Phase 7.
01 · LLM
How to calculate ROI for LLM implementation
A CFO-friendly framework for sizing the payback on direct-LLM agent work, before you commit a budget.
Apr 2026Read post →
02 · ARCHITECTURERAG vs fine-tuning: which is right for your use case?
A short, opinionated decision tree. Most teams need RAG. A small minority benefit from fine-tuning.
Mar 2026Read post →
03 · TRANSFORMATIONThe Frontier Firm playbook: a twelve-week field guide
How a 200-person company restructures its org chart around AI agents without firing anyone or burning a year of credibility.
Feb 2026Read post →
04 · POSTMORTEMWhy most AI projects fail (and what we do differently)
Six failure patterns we see in every audit, ranked by how much money they cost — and the cheap fixes that prevent them.
Jan 2026Read post →