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

# App Testing

> Run App Testing against the live preview with /test — Mythex clicks through your app and reports what it finds.

# App Testing

Use **App Testing** when you want Mythex to exercise the **live preview** like a user — open pages, click controls, and report broken flows — instead of only reading code.

## How to run it

In the project workspace chat:

1. Make sure **Preview** is running and shows your app
2. Type `/test` (or ask in plain language: “test the app in the browser”)
3. Optionally say what to focus on (“test signup and the pricing page”)

Mythex drives a browser against the preview, captures what it sees (including screenshots when useful), and summarizes results in chat.

## When to use it

* After a large UI change
* Before publish, to catch obvious breakage
* When Preview “looks fine” but a flow might still fail

## Tips

* Prefer a clear happy path (“create an account, add an item, check out”) over “test everything”
* Fix issues with `/fix` or a normal Build message, then `/test` again
* App Testing uses the **preview**, not the published URL — publish separately when you are ready

## Related

* [Chat](/features/chat) — slash commands and modes
* [Preview & Code](/features/preview-and-code)
* [How to publish](/publish/how-to-publish)