> ## Documentation Index > Fetch the complete documentation index at: https://arklex-06dfaf56-feat-arkdock-documentation.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Knowledge > Manage documents and websites that simulated users can reference during a simulation. The Knowledge section manages documents and websites that simulated users can reference during a simulation. Attaching knowledge to a scenario gives the simulated user access to specific content — useful for testing whether your agent responds faithfully to its source material. *** ## Knowledge types Arkdock supports two types of knowledge sources: | Type | Description | | ------------- | ----------------------------------------------------------- | | **Documents** | Uploaded files (PDFs, text documents, and similar formats). | | **Websites** | Web pages crawled and indexed from a URL. | Both types are chunked and indexed so the simulated user can draw on their contents when forming conversation turns. *** ## Documents Navigate to **Knowledge** and select the **Documents** tab. ### Uploading a document Click **Upload Document** and select a file from your computer. Once uploaded, the document is processed and made available to attach to scenarios. Each document entry in the list shows: * Document name * Upload date * Processing status (Pending, Processing, Ready, Failed) ### Viewing a document Click any document row to view its content and metadata. Documents that fail to process show an error message with guidance on supported formats. ### Deleting a document Open the document detail page and use the delete action. Deleting a document removes it from the knowledge base. Scenarios that reference the deleted document will lose access to its content for future simulations. *** ## Websites Navigate to **Knowledge** and select the **Websites** tab. ### Adding a website Two buttons are available on the Websites tab: * **Add Domain** — Crawl a domain and index content from multiple pages. Enter the domain URL and set a maximum page count (1–1,000). Use this for multi-page documentation sites or knowledge bases where you want Arkdock to follow links and extract content from many pages. * **Add Link** — Index a single URL or YouTube video. Use this when you have one specific page or video to add. Each website entry shows: * The URL * When it was added * Processing status ### Viewing a website Click any website row to view the indexed content and metadata. ### Deleting a website Open the link detail page and use the delete action. *** ## Attaching knowledge to scenarios Once documents or websites are in the knowledge base, you can attach them to individual scenarios on the scenario detail page. A simulated user with attached knowledge documents will reference their contents when relevant during a conversation. This is particularly useful for: * **Faithfulness testing** — verifying that the agent's responses align with what a knowledgeable user would expect based on documented facts. * **Grounded evaluation** — ensuring agents don't hallucinate information that contradicts the documents the user has access to. * **Edge case coverage** — giving simulated users specific product specs, pricing tables, or policy details that can reveal gaps in agent knowledge. *** ## FAQ Commonly supported formats include PDF, TXT, and DOCX. If a document fails to process, check that it is not password-protected and is within the supported file size limit. It depends on which option you use. **Add Domain** crawls a domain and indexes content from multiple pages up to the maximum page count you configure. **Add Link** indexes only the single URL or YouTube video you provide. Content is indexed at the time you add the URL. Arkdock does not automatically re-crawl URLs when the source page changes. Delete and re-add the URL to refresh the indexed content. Yes. A single document or website can be attached to as many scenarios as needed. Updating the source document does not affect simulations that have already been run.