OptionalfilenameOriginal filename (if known).
OptionalmimeMIME type of the file (e.g., application/pdf).
OptionalnameVariable name the file was assigned to.
OptionalpagesNumber of pages (for PDFs).
OptionalurlThe file URL. May be a vault:// reference or a public https:// URL.
OptionalusedWhere the file is referenced from.
A file attached to a task input.
Both
urlandfilename/nameare optional on the server side, so consumers should be defensive when reading them.