> ## Documentation Index
> Fetch the complete documentation index at: https://arka-agent-mintlify-f21cea86.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# App build checks

> Detect and validate a project's build and test workflow.

Ask Arka to detect and validate a project’s build/test workflow:

```bash theme={null}
arka app-check .
arka app-check . --run
arka app-check . --run --json
```

Arka detects common Python, Node, Rust, and Go projects. Without `--run` it
only previews checks. With `--run` it stops at the first failure and reports the
command output so the problem can be fixed. Natural language works too:
“build and test this app”. Run checks in an Arka sandbox when validating
generated or untrusted code.


## Related topics

- [Design first, build after approval](/guides/design-first.md)
- [Build something cool](/guides/build-something-cool.md)
- [Arka — AI terminal agent documentation](/index.md)
- [Installing and building Arka plugins](/guides/plugins.md)
- [Apple Intelligence (on-device)](/guides/apple-intelligence.md)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.