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Add files to an Agent chat

Send the documents you want Agent to work with.

2 min readReviewed October 11, 2026Changed in the week of sep 14

For the attachment control in Lawtrades Agent. Project sharing is covered separately.

Attach and send

  1. Open the Agent conversation you want to use.
  2. Select the paperclip Attach files button, then Upload files if the attachment menu appears. You can also drag files into the message box.
  3. Wait for each upload to finish. Remove any file you did not mean to add.
  4. Write what you want Agent to do with the files, then select Send.

Supported files

Each file can be up to 10 MB. The attachment picker accepts the following formats:

  • Documents: PDF, DOC, DOCX, TXT, and RTF.
  • Spreadsheets: XLS, XLSX, and CSV.
  • Presentations: PPT and PPTX.
  • Images: PNG, JPG, JPEG, GIF, and WebP.
  • Email and archives: EML, MSG, and ZIP.

If an upload fails

Check the file type and size shown in the error. Remove the failed attachment and try again. Uploading a supported file does not guarantee that Agent can read every part of it. If it cannot read the contents, try a readable PDF or paste the relevant text.

Sharing with another person

To send a document to your client or lawyer, use the Project’s Messages tab. Adding a file to your personal Agent conversation is a different action.

Give a document review a clear task

After attaching a document, tell Agent what you want to understand: for example, summarize the key obligations or identify passages for you to review. Check the answer against the document before relying on it.

If you want a checklist or playbook considered, attach it to the conversation and explain how to use it. Do not assume a previous upload will be applied to every future chat.

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