Context engineering, written honestly.

Labeling and versioning work — until more docs, people, and AI tools touch them. What breaks, why it breaks silently, and where hand-maintenance ends.

Over two million AI skills are a click away. Almost none are worth money — and the one question that sorts them points to the only kind that is.

Labeling tells your AI which document is current — nothing about what replaced what, or when. How to give your docs a memory, and the maintenance bill.

Prompting tells an AI what to do once. Context engineering decides what it knows, every time — and it's the difference between AI that demos well and AI that works for you.

A skill is one of the most useful things you can hand an AI model. It is also being sold to you as something it fundamentally is not. Here's the mechanism.

Some skills don't just fail to help — they overwrite what the model knows with confident, wrong answers. And they're usually the impressive-looking ones.