Reviewing Diffs

Press d on any agent to open the diff viewer — a GitHub-style split-pane view with syntax highlighting.

Diff viewer screenshot

What it shows

The diff viewer compares the merge-base of the agent’s branch against HEAD, showing exactly what the agent has changed. Files are colour-coded:

  • Green — new files
  • Red — deleted files
  • Yellow — modified files
Key Action
j / k or arrows Select file in the file list
J / K (shift) Scroll diff content (single line)
Ctrl+U / Ctrl+D Scroll diff content (half page)
g / G Jump to first / last file
{ / } Jump file list by half page
Enter or Space Toggle directory expand/collapse
/ Filter files by name
e Expand/collapse all context
d, q, or Esc Exit diff viewer

Smart context collapsing

Large diffs automatically collapse unchanged regions. The viewer keeps sticky function headers visible at the top of the scroll area so you always know which function you’re reading, even deep into a long diff.

Opening a diff without an agent

The diff viewer is also accessible through the PR workflow. Press g on an agent that has an open PR to view the PR diff directly.