Why does only Gemini CLI have "Edits preview" while using ACP?

[marcoafm26]

I've been using Zed for a few months now and I have one simple question: why does only Gemini generate the edit preview in Zed's agent panel? It is a really useful feature to have, as it saves a lot of development time.

I've tested some other agents by ACP like Claude Code, Cursor CLI and Github Copilot. All of them don't have the same behavior of Gemini CLI (rest in peace).

[benbrandt]

This is a Zed feature we implemented on top of the client filesystem apis. However, most agents don't use those, and therefore we can't provide the same diff.

We are looking into other options on the zed side, and we also decided to remove these fs apis anyway in v2 because of lack of adoption.