cleanup-brancheslisted

Prune local branches whose work is already merged into the base. TRIGGER when the user says "clean up branches", "delete merged branches", "prune local branches", "remove old branches", "I have too many branches", "what branches can I delete", "/nyann:cleanup-branches". Do NOT trigger on "delete THIS branch" (that's a one-off `git branch -D`, not a cleanup pass) or "remove a branch from the remote" (this skill is local-only; remote pruning is `git push --delete origin <branch>` and the user should do that themselves). Do NOT trigger on "merge this branch" (that's the merge step before cleanup).
thettwe/nyann · ★ 6 · Code & Development · score 71

Install: claude install-skill thettwe/nyann

# cleanup-branches Wraps `bin/cleanup-branches.sh`. Lists local branches whose tip is reachable from the base branch (`main` / `develop` / wherever the profile points), then either previews the list or actually deletes them with `git branch -d` (safe — refuses unmerged work). Mirrors the same preview-then-mutate contract as `undo` and `migrate-profile`: nothing is deleted unless the caller passed `--yes` AND `--dry-run` was absent. ## 1. Run the preview Always invoke without `--yes` first: ``` bin/cleanup-branches.sh --target <cwd> ``` Output is a CleanupBranchesResult JSON (see `schemas/cleanup-branches-result.schema.json`). Show the user: - The base branch the merge check ran against (`base_branch`). - The list of candidates (`candidates[]`), one per merged branch, with last-commit timestamp + short SHA so they can sanity-check. - The total count from `summary.candidates_count`. - The recovery hint: re-run with `--yes` to delete. If `summary.candidates_count == 0`, tell the user there's nothing to clean up and exit. Don't prompt. ## 2. Confirm and apply Ask: "Delete N merged branch(es)?" — list the names if there are 5 or fewer, or summarise if more. On confirmation: ``` bin/cleanup-branches.sh --target <cwd> --yes ``` The script uses `git branch -d` (lowercase d, the safe form) so even if a candidate's merge state changed between the preview and the apply, git will refuse the unsafe delete and the entry lands in `errors[]` instead of `deleted[]`. Surface any