> ## Documentation Index
> Fetch the complete documentation index at: https://docs.meridian.surf/llms.txt
> Use this file to discover all available pages before exploring further.

# Command option

> A Discord slash command parameter attached to the Command block.

Command options are slash command parameters. They appear as child nodes under your Command block on the canvas.

This block is placed automatically by the builder. You cannot add it from the block palette.

## What it does

Each option becomes a Discord application command parameter (string, number, user, channel, role, etc.). Values are available in later blocks as variables.

## Configuration

Add options from the Command block sidebar or canvas. Each option has a **name**, **description**, **type**, and whether it is **required**.

Supported types map to Discord slash command option types: string, integer, boolean, user, channel, role, mentionable, and attachment.

Reference option values in later blocks with variables such as `{option.name}`, depending on how the flow exposes command context.

## Tips

* Keep option names short and lowercase. Discord shows them in autocomplete.

## See also

* [Command flow](/builder/action-blocks/command-flow) — Browse all blocks in the Command flow category.