Code Review

Step 0 — Scope Selection

Before anything else, ask the user the following question and wait for their answer:

What would you like to review?

1. Uncommitted changes — files modified but not yet staged or committed (git diff HEAD)
2. Staged changes only — files added to the index but not yet committed (git diff --cached)
3. Current branch vs base branch — all commits introduced by this branch compared to its merge base (e.g. git diff main...HEAD)
4. A specific commit — changes introduced by a single commit (provide the commit hash)
5. A commit range — changes across a range of commits (provide <from>..<to>)

Type the number of your choice. For options 4 or 5, also provide the commit hash or range.