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

# Domain boundaries

Limit packages to a specific business vertical and explicitly tag packages as `shared` to allow their use across teams.

```json .commonality/config.json theme={null}
{
  "constraints": {
    "*": {
      "allow": ["shared"],
    },
    "commerce": {
      "allow": ["commerce"],
    },
    "marketing": {
      "allow": ["marketing"],
    },
  },
}
```