This tool finds files in your library by name, your own description, or the text parsed out of them — so a PDF is findable by a phrase on page four even when its filename says nothing. Results are metadata (name, type, folder, parse status); the agent reads a file with Get File. You can narrow to images, PDFs, or everything else, or to a single folder.
The teacher's files, uploaded or agent-created: generate and edit images, build PDF, Word, PowerPoint and Excel files, search them by name or inner text, and read their contents.