Files in chat
The agent can read files you've uploaded to the project. Files are scoped per project — they don't leak between projects.
Upload during chat — drag a file into the chat window or use the upload button. It'll be added to the project's file list and made available to the agent in the current session.
Reference a file in a message — just mention its name: "Use the positioning document we uploaded to draft three headline options." The agent will read it and cite it.
Persistent vs. temporary — all uploads are persistent to the project; there's no temporary upload. If you want the agent to forget a file, delete it from Files.
Supported formats — text (.txt, .md), PDFs, Word docs (.docx), spreadsheets (.csv, .xlsx), presentations (.pptx), images (.png, .jpg), and most plain-text source files. Very large files may be read in chunks.
See Uploading files for details on file management outside of chat.