Prompt Basics

> A bare one-line instruction to summarize an incident report counts as `8` units under this chapter's deliberately simple estimator. A fuller contract for the same business request counts as `224`. Under the chapter's illustrative assumptions of `100,000` calls a day and `$3.00` per million input tokens, the difference is `$64.80` a day before output tokens, caching, and other serving charges. These are fixture results, not a provider quote or a billing-accurate token count.