Lab
The Lab
Where I keep the receipts. The Lab is a permanent home for what I'm measuring and tuning as I build with AI — the data up top, a running record of experiments underneath. Working notes with the numbers attached.
Every guard in my setup is a mistake that happened enough times to automate away — the reverse timeline of how the rails went in.
Opus is the manager, Sonnet the senior with good judgment, Haiku the intern — matching the model to the job instead of always reaching for the biggest one. →
13.5B tokens across 1,769 sessions, instrumented turn-by-turn — finding the context ceiling my sessions kept hitting, and what I'm doing about it. →
Two sessions were building the same feature and didn't know it, so I told one to message the other. Five ways my Claude sessions started coordinating without me. →