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name: cleanup-merged-branches description: "Deletes local and remote git branches that have been merged into main."

Cleanup Merged Branches

This skill safely deletes git branches that have been merged into the main branch.

Procedure

1. Fetch and Prune Remote

Copygit fetch --prune

2. List Merged Branches (Preview)

Copy# Local branches merged into main (excluding main itself)
git branch --merged main | grep -v "main" | grep -v "^\*"

# Remote branches merged into main
git branch -r --merged main | grep -v "main" | grep -v "HEAD"

3. Delete Local Branches

Copygit branch --merged main | grep -v "main" | grep -v "^\*" | xargs -r git branch -d

4. Delete Remote Branches

Copy# For each remote branch (e.g., origin/feature-branch)
git push origin --delete <branch-name>

Safety Notes

• Always preview before deleting (-d is safe, -D force deletes)
• Never delete main - the grep filters exclude it
• Confirm with user before deleting remote branches (destructive action)
• Protected branches - some branches may be protected on GitHub