What is the primary purpose of Claude's citations feature?	To allow the AI to refer directly to outside sources of information, enabling users to verify the information presented.
How do you enable the citations feature when submitting a request to Claude?	By adding a `citations` field to the request, configured as a dictionary with `enabled: true`.
When citing a PDF document, what specific object is used to pinpoint the location of the cited information?	The `citation_page_location`.
Name the key components found within a `citation_page_location` object.	Cited text, document index, document title, start page, and end page.
What is the difference in the location identifier when citing plain text versus a PDF?	Plain text uses a `citation_char_location`, while PDF documents use a `citation_page_location`.
What changes must be made to the request parameters to enable citations for plain text?	Change the `type` to `text`, the `media_type` to `text/plain`, and provide the data in the designated field.
Why is the citations feature valuable for building user interfaces?	It allows the user to build pop-ups that display the exact source and text, assuring the user the information comes from an external document.
Is the citations feature restricted only to PDF documents?	No, it can also be used effectively with plain text documents.