If you work with feature branches and PRs, you know the pain: merged branches pile up locally even after the remote is gone. This handles the cleanup automatically by fetching the latest remote state, identifying branches marked as "gone," and deleting them along with any associated worktrees. It's from Every's compound engineering plugin, which has solid adoption (230 installs, passes all three security audits). The workflow is straightforward: run the discovery script, confirm what's stale, then clean it up. Saves you from manually tracking down orphaned branches or writing your own cleanup script for the hundredth time.
npx skills add https://github.com/everyinc/compound-engineering-plugin --skill git-clean-gone-branches