Unclear It is not clear what switches the compact layout on, or whether it is on by default.
What
The permission dialog is the prompt that asks whether Claude may use a tool, such as editing a file. It gains a second layout:
- The dialog accepts a
framesetting and draws a different frame when it is set; otherwise it uses the old layout. - The file permission dialog switches to a "fitted" layout when an internal state value is true. That layout has its own frame with cancel handling, a title suffix and an 'amend' tab hint. Symlink and diff paths are drawn through a wrapper, and side padding drops from 1 to 0. The diff view takes a new padding setting.
- A new warning, "Could not check where this path leads on disk", appears in both layouts when a file's symbolic link (a shortcut to another file) could not be checked.
What turns the fitted layout on was not traced.
Why
The fitted layout may not be visible yet, but the symlink warning is: it tells you when Claude Code could not confirm which file on disk a path really points to before you approve.
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It is not clear what switches the compact layout on, or whether it is on by default.