Merge Branch Safely

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name: merge description: Commit, rebase, and merge the current branch into its base branch (never main). disable-model-invocation: true allowed-tools: Read, Bash, Glob, Grep

Safety Rules

CRITICAL — these rules must NEVER be violated:

• NEVER merge into main or master. If the resolved base branch is main or master, stop immediately and inform the user.
• NEVER force push. Do not use --force, --force-with-lease, or -f with git push.

Step 1: Verify Branch

git branch --show-current

If the current branch is main or master, STOP and tell the user they must be on a feature branch.

Step 2: Commit

If there are staged changes, commit them.

1. Run git log --format="%s" -n 20 to detect the repo's commit convention and match it.
2. If no clear convention exists, default to conventional commits with a scope, e.g. feat(auth): add login endpoint.
3. Always include a co-author trailer:

   Co-Authored-By: Claude <noreply@anthropic.com>
   

4. Skip if nothing is staged.

Step 3: Determine Base Branch

git config --local --get "branch.$(git branch --show-current).workmux-base" 2>/dev/null

If no base branch is configured, STOP and tell the user no base branch is set. Do NOT default to main.

If the base branch is main or master, STOP and tell the user: "Refusing to merge into main/master. Set a different base branch or use /pr instead."

Step 4: Rebase

Rebase onto the local base branch (do NOT fetch from origin first):

git rebase <base-branch>

IMPORTANT: Do NOT run git fetch. Do NOT rebase onto origin/<branch>. Only rebase onto the local branch name.

If conflicts occur:

• BEFORE resolving any conflict, understand what changes were made to each conflicting file in the base branch
• For each conflicting file, run git log -p -n 3 <base-branch> -- <file> to see recent changes
• Preserve BOTH the base branch changes AND our branch's changes
• After resolving each conflict, stage the file and continue with git rebase --continue
• If a conflict is too complex or unclear, ask for guidance

Step 5: Merge

Run: workmux merge --rebase --notification