> For the complete documentation index, see [llms.txt](https://docs.drizz.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.drizz.dev/twins/reference.md).

# Reference

Commands, keys and limits, common errors, and the words these docs use.

Commands, keys and limits, common errors, and the words these docs use.

| Page                                                   | What it covers                                                   |
| ------------------------------------------------------ | ---------------------------------------------------------------- |
| [CLI reference](/twins/reference/cli.md)               | Every `twin` command and its most useful options.                |
| [Keys and limits](/twins/reference/keys-and-limits.md) | Signing in, keys in CI, roles, and how many worlds you can hold. |
| [Troubleshooting](/twins/reference/troubleshooting.md) | The usual errors, and what to do about each.                     |
| [Glossary](/twins/reference/glossary.md)               | The words used across these docs.                                |

## Next

* [CLI reference](/twins/reference/cli.md): every `twin` command.
* [Troubleshooting](/twins/reference/troubleshooting.md): find the symptom, apply the fix.
* [Glossary](/twins/reference/glossary.md): the words used across these docs.

***

*Last updated: 27 October 2026*