# Using Eva — Eva documentation

> The use pages of Eva's documentation. The whole index is at https://docs.evafactory.co/llms.txt.

Every page below is also served as markdown at the same path with `.md` appended.

## Using Eva

- [Commands](https://docs.evafactory.co/use/commands): Every slash command in the Eva console. They are answered locally, never reach a model, and cost nothing.
- [The console](https://docs.evafactory.co/use/console): The Eva console is the interactive surface you type into. It shows a live area while a Run happens, then replaces it with the committed record.
- [Cost and usage](https://docs.evafactory.co/use/cost): Eva shows what a provider said a request cost, and marks an estimate as an estimate. It never multiplies tokens by a rate and calls the result a cost.
- [Keys and bindings](https://docs.evafactory.co/use/keys): How Eva spells a key chord, the six bindings the console ships, and how to add a chord for a command or replace a default binding in config.
- [Print mode](https://docs.evafactory.co/use/print-mode): Run one prompt, write the answer to stdout, and exit. Print mode exits non-zero when the answer fails, which makes Eva safe inside a shell pipeline.
- [Sessions](https://docs.evafactory.co/use/sessions): A Session is Eva's durable, resumable transcript. It survives kill -9, because everything Eva knows is folded from a Trace on disk rather than held in memory.
- [Themes](https://docs.evafactory.co/use/themes): Eva ships three themes and takes custom ones. A theme is a name and four colors, written in config or dropped into a .eva/themes directory.