Rebasing Branches

Rebase the current branch onto the latest base, resolve conflicts from both sides' intent, and confirm the branch still works before publishing it. The explicit invocation, or a call from landing-prs whose land request covers it, authorizes the history rewrite and the force-push; do not stop to confirm them. This skill does not wait for CI and does not merge.

Before starting

Refuse to start on a detached HEAD, a dirty tracked tree (git status --porcelain --untracked-files=no prints anything), or a rebase or merge already in progress. Refuse an argument that is neither a number nor an https:// PR URL.