> For the complete documentation index, see [llms.txt](https://docs.guardianservice.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/schemas/tag-schema.md).

# Tag Schema

Tags can have attached/linked documents. To add a document to the tag a schema is required. Such documents can be found under the **Tag Schemas** section.

<figure><img src="/files/hJjN5ylXPrGhMQf7n8Vt" alt=""><figcaption></figcaption></figure>

Users can select one of the published schemas in the section when adding a tag to add a corresponding document to the tag being created.