Gemini in ACP mode doesn't call diff tool before writing files

[brianhuster]

What happened?

Unlike in the TUI, in ACP mode, Gemini only give users 3 options when it attempts to edit files

  1. Allow All Edits
  2. Allow
  3. Reject

This means there is no options to open diff view like in TUI

What did you expect to happen?

Gemini call tool_call with a diff type content to show diff to users before editing file. Or give option view diff in RequestPermission

Client information

Client Information

Run gemini to enter the interactive CLI, then run the /about command.

> /about
About Gemini CLI                                                                                                                              │
│                                                                                                                                               │
│ CLI Version                                      0.28.0                                                                                       │
│ Git Commit                                       b7bd9ec18                                                                                    │
│ Model                                            auto-gemini-3                                                                                │
│ Sandbox                                          no sandbox                                                                                   │
│ OS                                               linux                                                                                        │
│ Auth Method                                      Logged in with Google (phambinhanctb2004@gmail.com)

Login information

Google Account

Anything else we need to know?

No response

[JagjeevanAK]

/assign

[gemini-cli]

👋 @JagjeevanAK! You currently have 3 issues assigned to you. We have a 3 max issues assigned at once policy. Once you close out an existing issue it will open up space to take another. You can also unassign yourself from an existing issue but please work on a hand-off if someone is expecting work on that issue.

[JagjeevanAK]

hey @galz10 can you check my implementation for this on PR #19539 ?

[ayush31010]

/assign

[gemini-cli]

👋 @Solventerritory, you've been assigned to this issue! Thank you for taking the time to contribute. Make sure to check out our contributing guidelines.