The Linked Data Helper plugin facilitates the creation of data files for use with the Linked Data Vocabularies plugin in Obsidian. It supports the generation of datasets, such as LCSH, and includes a step-by-step guide in the settings for each implemented dataset. The generated files are stored by default in the attachments folder under a subfolder named `linked-data-vocabularies`. Users can specify an alternative output path if needed. Once the required data files are generated and converted, the plugin can be disabled until an update or additional dataset integration is required.

The Linked Data Vocabularies plugin enables users to integrate structured linked data vocabularies into their Obsidian notes. It supports adding metadata such as Library of Congress Subject Headings, broader and narrower terms, and related headings. The plugin provides options to insert metadata in YAML format or inline, making it compatible with plugins like Dataview. Users can customize key names, query limits, and fuzzy search sensitivity to suit their needs.