> For the complete documentation index, see [llms.txt](https://docs.snyk.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.snyk.io/scan-fix-and-prevent/prevent/policies/assets-policies/use-cases-for-policies/tagging-policy.md). # Labeling policy How to use a labeling policy to categorize assets in Snyk Essentials ## Labeling policy Categorize and label repository assets with [asset labels](/scan-fix-and-prevent/fix/manage-asset-inventory/assets-inventory-components.md#tags). You can use the **Set Asset Labels** action to mark the repositories to which the filter criteria you have set apply. Snyk Essentials has a number of pre-defined system labels that can be used for filtering and setting labels with policies. User-defined custom labels can be created using policies. You can create a Set Asset Label policy action and define a custom tag by typing your tag in the tag search bar and selecting **Create new: `label_name`**. In this example the `label_name` is payment. The following use case demonstrates how to apply the custom-defined `backend` label to assets that match certain naming conventions. This allows a quick filter for backend assets from the Inventory view. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.snyk.io/scan-fix-and-prevent/prevent/policies/assets-policies/use-cases-for-policies/tagging-policy.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.