# Commands

Every slash command in the Eva console. They are answered locally, never reach a model, and cost nothing.

A command is a line you type at the console with a leading slash. **Commands
never reach a model, so they cost nothing.**

Type `/` to open the palette. <kbd>Enter</kbd> runs the selected row, and <kbd>Tab</kbd> completes it.

## The commands

| Command     | Argument         | What it does                              |
| ----------- | ---------------- | ----------------------------------------- |
| `/help`     | —                | list the commands                         |
| `/model`    | `provider/model` | show or set the session model             |
| `/cost`     | —                | show what this session has spent          |
| `/theme`    | `theme`          | show or set the theme                     |
| `/clear`    | —                | open a new Session                        |
| `/new`      | —                | an alias for `/clear`                     |
| `/sessions` | —                | show the Sessions Eva holds, and open one |

## Commands that take an argument

`/model` and `/theme` both name an argument, and both answer a bare line with a
choice of their own. Running `/model` with no argument opens the model picker
rather than complaining.

`/sessions` takes no argument and always asks: it opens a picker over the
Sessions Eva holds, and the row you take is the Session the console follows.

An argument hint says what an argument would look like. It never says one is
required.

## What is not a command

A flag is not a command. `--print`, `--model`, and `--config` start a process
and are read before the console exists. See the
[CLI reference](/reference/cli).

`eva trust`, `eva untrust`, and `eva config show` are commands of the
executable rather than of the console. You type them in your shell, not at the
Eva prompt.


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