API spend grows through retries, long prompts, tool loops, and estimates nobody can reproduce.
LLM Spend Control Lab: an editable Excel model + deterministic Python toolkit, with 6 verified scenarios and 14 tests.
$59:
https://t.co/hUWTE3e0aU
Cloud incidents punish rushed assumptions.
I built a provider-neutral lab: 4 synthetic scenarios, guides, and a deterministic Python trace.
Practice evidence-first response before a real incident.
$49: https://t.co/pTDcSNWms0
Cells aren't parts lists. They're systems shaped by boundaries, energy, exchange, feedback, and repair.
I built a guide, workbook, and Python Virtual Cell Lab to make those relationships traceable.
US$19: https://t.co/lXAVPYyPi3