Attachments
Coeus can import files for chat and note workflows. Imported files are copied into an assets/ folder inside your notes directory.
What you can import
| Type | Formats |
|---|---|
| Images | JPEG, PNG, GIF, WebP, HEIC |
| Documents | PDF, EPUB |
| Text files | TXT, CSV, JSON, Markdown |
| Audio/Video | MP3, WAV, M4A, MP4, MOV, OGG, WebM, FLAC, AAC |
How to import a file
Drag and drop: Drag a file onto the Coeus window. It gets imported as a chat attachment.
The import button: Click the paperclip icon in the chat bar to open a file picker. PDFs, EPUBs, and text-like documents import as durable sources by default and appear in the Sources section of the sidebar. Images still attach to the current message.
Paste: If you copy an image to your clipboard and paste it into the chat composer, Coeus imports it as an attachment.
What Coeus does with imported files
- Images are copied to
assets/and attached to the current chat workflow. - PDFs are copied to
assets/, imported as sources, and Coeus extracts the text so you can search them and ask the AI about them later without reattaching the file. - EPUBs are copied to
assets/, imported as sources, and Coeus extracts the book text into searchable source sections for question answering and research workflows. - Text files are copied to
assets/, imported as sources, and the content is indexed for search. - Audio and video files are transcribed automatically if you have voice transcription set up. The transcript is saved as a note.
Chat attachments are not automatically linked to a note just by importing them. They can be linked later as part of a note update workflow.
How files are stored
Imported files live in assets/ inside your notes folder. Coeus also stores a small metadata file in _coeus/attachments/ for each imported file: this is where the extracted text and attachment info is kept. Don't delete the _coeus/ folder; Coeus needs it to track which files have been processed.
Your notes folder stays portable. If you move it to a new machine, all the attachments come with it.
The AI and attachments
Once a file is imported and indexed, the AI can read it. Ask things like:
- "What does the PDF I imported say about pricing?"
- "Summarize the document I dropped in earlier."
If you import a PDF, EPUB, or text file with a lot of content, the AI can answer questions about it the same way it does with your notes. You only need to attach it to a message if you explicitly want ad hoc attachment behavior.