Live diff panel in fullscreen

Diff panel

The diff panel lists the changed files with their added and removed line counts, and shows each file's diff under the list. Claude Code refreshes it each time Claude edits a file or runs a shell command. To close it, run /diff again or click the ✕ in its header.

To use the panel you need:

• Fullscreen rendering
• A git repository
• A terminal at least 110 columns wide
• Claude Code v2.1.260 or later

When the panel can't open, /diff opens the diff viewer instead or tells you why.

The panel also opens on its own once Claude starts editing files, if your terminal is at least 144 columns wide. After you've opened it yourself with /diff, later sessions open it as soon as Claude edits a file in any terminal wide enough to fit it. Close the panel and it stays closed, in this session and later ones, until you run /diff again.

While the panel is open, you can:

• Jump to a file: click its row in the list. Scroll the panel with the mouse wheel. When the file list itself is too long to fit, scroll it with Alt+Up and Alt+Down, or Ctrl+Up and Ctrl+Down.
• Ask Claude about specific lines: select them in the panel with the mouse. Claude Code attaches the selection to your next prompt and shows a line count in the input until you send it.
  • To send the prompt without the selection, move the cursor to just after the line-count indicator and press Backspace to delete it. Requires Claude Code v2.1.271 or later.
• Show the files the panel leaves out: the list skips test files and generated files, and collapses changes from before this session into one line at the bottom. Click either count line to expand it.
• Change what the panel compares against: press Ctrl+X B to cycle from this session's changes, to your uncommitted changes as one list, to everything since your branch split from the default branch. Claude Code remembers the choice for each project.

To bind keys to these actions, see Diff panel actions.