# The viewer (/studio/viewer)

# The viewer [#the-viewer]

The viewer is a local page over your project's `.stuntdouble/` folder. It
lists every run, local and cloud, and updates while a run is going.

## Open it [#open-it]

Every run prints its viewer link. To open the viewer at any other time:

```text
/stuntdouble:open
```

Someone without Claude Code, such as a teammate reviewing your branch, can open
it from the project folder:

```sh
npx stuntdouble view
```

Open the link it prints. Press <kbd>Ctrl</kbd> <kbd>C</kbd> to stop the viewer.

## What it shows [#what-it-shows]

- **Verdicts.** Each check's result and the evidence behind it.
- **Screenshots.** What the actor saw at each step.
- **The activity log.** Every action the actor took, in order.

## Stop a run [#stop-a-run]

Select **Stop** while a run is going. The actor stops at its next step and
ends the run. Checks it already judged keep their verdicts, and
`/stuntdouble:run <checklist> resume` picks up a stopped run later.

## The port [#the-port]

The viewer listens on `127.0.0.1`, starting at port 4747. If that port is
taken, it uses the next free one, so always use the link Studio prints.