branch-rename-if-needed

name	Branch: Rename If Needed
description	{{ ƔƔƔ }} Check the current branch name against convention (type/short-description) and rename it if it drifted — e.g. work started on a misnamed or default branch.
when_to_use	Before opening a PR, or whenever the branch name no longer reflects what it actually contains.
model	sonnet
disable-model-invocation	true
allowed-tools	["Bash(git:*)"]
argument-hint	["(optional) desired name"]

Assess and Rename Current Branch

1. If user has specified a new name, apply it; otherwise, get the current branch name with git branch --show-current
2. Get a summary of what's actually been done on this branch:
   • git log main..HEAD --oneline to see commits
   • git diff main..HEAD --name-only to see changed files
3. Compare the branch name against the actual changes:
   • Does the name still accurately describe the work?
   • Is the scope broader or narrower than the name implies?
   • Does the name follow the <prefix>/<short-description> convention?
4. If the name is still accurate, say so and stop
5. If a rename is warranted, suggest a better name and explain why
   • Format: <prefix>/<short-description> — all lowercase, hyphens, imperative mood (add-feature not adds-feature or adding-feature)
6. Await approval — if accepted:
   • Rename locally: git branch -m <new-name>
   • Rename on remote: git push origin HEAD:<new-name> then git push origin --delete <old-name>
   • Set upstream: git branch --set-upstream-to=origin/<new-name>