# Usage Guidelines

Rules for using a component, each with its weight, read from the page’s front matter.

Usage guidelines state the rules for using a component, each with a level. The items live in the page’s front matter, where tools can read them as data.

::usage-guidelines
::

## Usage

```mdc
---
guidelines:
  - statement: Give every dialog an accessible name.
    level: must
---

::usage-guidelines
::
```

The levels are `must`, `must-not`, `should`, `should-not` and `may`. An item with `framing: when-to-use` stays in the data and off the page, because the opening paragraph says the same.