# Free sample examples

Five gallery demos include working source code your agent can adapt with the relevant skills.
The demos run locally with fictional data; they are not live AI output.

| Example | Try it | Source guide |
| --- | --- | --- |
| [Materials](material-atelier/index.html) | Adjust a 3D object's material and lighting. | [Guide](material-atelier/README.md) |
| [Motion](interaction-lab/index.html) | Compare two timings; explore curves, springs and CSS when needed. | [Guide](interaction-lab/README.md) |
| [States](state-machine/index.html) | Try a simulated upload, interrupt it and recover. | [Guide](state-machine/README.md) |
| [Workspace](command-room/index.html) | Select projects, manage tasks and use keyboard commands. | [Guide](command-room/README.md) |
| [File repair](first-job/index.html) | Repair a sample CSV's column format and check for missing rows. | [Source](first-job/app.js) |

Open an example's `index.html` directly. The bundled material renderer needs no CDN or build step.
If browser file restrictions affect graphics, clipboard or saved settings, serve the Library folder:

```sh
python3 -m http.server 8080 --bind 127.0.0.1
```

Open `http://127.0.0.1:8080/`. WebGL is needed for live 3D; a static fallback remains available.

## More practice

[Reference desk](design-lab/START-HERE.html) and [Writing desk](writing-lab/START-HERE.html) include source and practice guides.

This sample includes six complete skills. The five demos do not imply that every related skill is included.
The gallery labels local skills as Included here and other relevant skills as Full library.

The [metric calculation](../skills/data/metric-contracts/references/worked-calculation.md) is an additional fictional exercise.

[Full Rival Workshop edition](https://www.rival.tips/workshop).