One of your own builds finishes today, as a skill Codex runs the same way every time.
Review, Debrief, Research, Pre-call Prep, Voice Check, ICP Score, Win/Loss Log, Quote Capture, each a clean input, process, output.
Rachel Woods's frame: a skill is an SOP written so Codex can execute it instead of a human reading it.
Kat's weekly cost-code report is exactly that kind of output, the one this session builds from.
Name, description, trigger, inputs, steps, output, examples, each filled with a real example from the build in front of you.
Write the exact step, not the general instinct.
Kat's cost-code tool is already a working estimate of about 80 percent there. The gap gets fixed in the skill file, not by writing a smarter prompt next time.
Write a half-page plan and get sign-off before you build. Validate against a throwaway example before you ever touch real data.
Answer no to any one of them, redesign it, don't push ahead on enthusiasm.
We read from Jack and Databuild once the read-only exports land. We never write into either.
Most companies think they're further along than they are, because they've only done the first rung.
Your escalation process, your qualification lens, your review standard, a competitor can't download those.
The skill carries the repeatable work. The person stays in the loop for the genuinely novel calls, the first and last mile of the job stay human.
Cost-code tool, v1 shipped solo, a working estimate of about 80 percent there, finished live on Codex.
The write-back feeds the next run's context, decisions, blockers, next actions.
Rent stops the day you stop paying. Skills compound, and they stay when the vendor changes.