Google

Documents · Turn it on in Settings › Plugins

Google Docs and Sheets as documents: pick files from your Drive, make new ones, and let agents edit them (formulas, formatting and charts too) and answer their comments.

What it needs

A connection:

Google account

One per Google account: Sign in with Google below adds it. Your organization blocks apps from outside? Add one with your own OAuth client from Google Cloud instead (Advanced). PDT sees only the files it makes and those you pick.

OAuth client secret (optional): Your own OAuth client's secret, shown with its ID in Google Cloud. Only with your own client.
Settings: OAuth client ID, Picker API key, Project number, Folder for new documents

More in the docs: Plugins and connections.