[Bug] Edit/Write tool diffs not displayed before approval prompt

Bug Description
Bug: Edit/Write tool diffs no longer shown before approval prompt

Starting today (2026-03-18), when Claude uses the Update tool, the proposed change (diff or file content) is no longer displayed inline before the approval prompt appears. Previously, the diff was visible so I could review what would be changed before
approving. Now the prompt appears with no content preview, requiring a blind approval.

Expected behavior: Show the proposed diff/file content inline with the approval prompt, as it did previously.

Actual behavior: Approval prompt appears immediately with no preview of the change. The applied diff is then shown after approval.

Environment: Windows 11 Pro, shell: bash

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 2.1.78
• Feedback ID: b9d61173-57fe-4191-b9af-91c1a7f68534

Example (prompts are not stored in the log)

❯ store this as a global rule

● Read(~/.claude/CLAUDE.md)
  ⎿  Read 57 lines

● Update(~/.claude/CLAUDE.md)
  ⎿  Added 1 line
      16  ## Temp Files
      17  - Always use `~/tmp` for temporary files — full read/write access is available there
      18  - Never use `/tmp`, `$TEMP`, or other system temp directories
      19 +- This includes temporary markdown files for PR comments, commit messages, and any body files passed to CLI tools (e.g. `--body-file`, `--comment-file`)
      20
      21  ## Behavior
      22  - Proceed with reasonable assumptions rather than excessive questioning

                                                                                                                                                                                                                                            10:12 AM claude-sonnet-4-6
● Done. Added to the global Temp Files rule in CLAUDE.md. Ready for the next PR?

Errors

[]

``