Branch Workflow

Role: worker. This command performs PR creation, merge, and branch cleanup
directly via git/gh commands.

Overview

The three-phase workflow ends at the Phase 3 human gate. This skill formalizes what happens after approval: PR creation, merge decision, and branch cleanup. Without this, branches linger and merge conflicts accumulate.

Constraints

• Do not push to main/master directly — always use a PR
• Do not force-push unless the human explicitly requests it
• Do not delete branches that have unmerged work
• Do not merge without a passing CI check (if CI is configured)
• Do not switch branches (checkout, worktree enter) without first checking working-tree state and confirming with the human if dirty

Workflow

1. Pre-PR Checklist

Before creating the PR, verify:

• All tests pass (fresh run, not cached)
• /code-review passed or warnings are documented
• Documentation is current (tech-writer verified in Phase 3)
• Branch is rebased on latest main (resolve conflicts if needed)

2. Create the PR

• Title: concise, under 70 characters, describes the change
• Body: Summary (what and why), test plan, link to design doc if one exists
• Labels: add relevant labels (bug, feature, refactor, docs)
• Reviewers: assign based on who should review (human decides)

3. Present Options

After confirming the base branch, present exactly four choices. If this session entered a worktree via EnterWorktree for this branch, each option's cleanup step is performed with the paired ExitWorktree call below — never raw git worktree remove. If no worktree was entered via EnterWorktree (branch-workflow can also run directly in the primary checkout), the ExitWorktree steps are a no-op — skip them.

1. Merge locally — Integrate feature branch into base, run tests on merged result, delete feature branch, then call ExitWorktree(action="remove")
2. Push and create PR — Push branch and create pull request via gh pr create. Once the PR is opened, call ExitWorktree(action="keep") so the worktree persists on disk while the session's CWD bookkeeping is closed
3. Keep as-is — Preserve branch and worktree for later handling; call ExitWorktree(action="keep") immediately after the option is confirmed — do not leave the worktree silently "entered" for the rest of the session
4. Discard — Permanently delete branch and all commits. Requires the human to type "discard" to confirm. Never discard without typed confirmation. After confirmation, call ExitWorktree(action="remove", discard_changes=true)

3a. Pre-Switch Verification (Option 1 only)

Before performing the checkout/merge that Option 1 ("Merge locally") requires, verify the working tree is safe to switch:

1. Run a working-tree status check (git status --short, or the worktree-tool equivalent) covering the feature branch's tree. This surfaces both tracked changes (modified/staged) and untracked files — not just tracked ones.
2. Show the result to the human.
3. If the tree is clean, proceed with the switch.
4. If the tree is not clean (any modified, staged, or untracked files), stop. Do not switch branches silently. Require the human to explicitly say how to proceed — commit, stash, or abort — before running the checkout. This follows the same explicit-confirmation pattern as Option 4's typed "discard," not a bare warning that can be clicked through.
5. Re-check that the target/base branch still matches what was confirmed in step 3's "After confirming the base branch..." — this does not re-ask for that confirmation, only verifies it hasn't drifted since.

This step applies only to the branch/worktree switch Option 1 performs. It does not replace or duplicate the Pre-PR Checklist's "Branch is rebased on latest main" item (§1) — that is a rebase-currency check performed earlier, not a dirty-tree check performed at the moment of switching. It also does not modify Post-Merge Verification & Cleanup (§5), which handles branch/worktree deletion after the merge, not the switch before it.

4. Merge Strategy (for options 1 and 2)

Situation	Strategy	Why
Single logical change, clean history	Squash merge	One commit tells the story
Multiple logical changes that should stay separate	Merge commit	Preserves the history of each change
Long-lived branch with many commits	Squash merge	Reduces noise in main history
Experimental/spike work	Squash merge	The journey doesn't matter, only the result

Default: squash merge unless the human specifies otherwise.

5. Post-Merge Verification & Cleanup

• Run tests on the merged result — do not skip this. Broken code must never reach base branches.
• Delete the feature branch (remote and local) — only for options 1 and 4
• If a worktree was entered via EnterWorktree for this branch, call ExitWorktree(action="remove") for options 1 and 4 (never raw git worktree remove); options 2 and 3 use ExitWorktree(action="keep") as described in Section 3. If no worktree was entered via EnterWorktree, this step is a no-op.
• After removal, verify no orphaned worktree or branch remains — e.g. git worktree list and git branch should show nothing for the deleted branch

Integration

• Triggered after Phase 3 human gate approval
• PR creation follows the git commit conventions in the project

Output

A merged PR with clean branch history, closed issues, and deleted feature branch.