Git Branch Manager

Instructions

When to Invoke This Skill

• Creating a new feature/fix/chore branch
• Switching between branches
• Cleaning up merged branches
• Handling uncommitted changes before branch operations
• Validating current branch state

Core Capabilities

1. Branch Creation - Create properly named branches from main
2. Branch Switching - Safe branch changes with uncommitted change handling
3. Branch Cleanup - Remove local branches after merge
4. Branch Validation - Verify branch state and history

Standard Workflows

Creating a New Branch

1. Check Repository State
   Invoke the git-state-validator skill to verify:

   • Current branch status
   • Uncommitted changes
   • Working directory state

2. Handle Uncommitted Changes
   If changes exist, ask user:

   • Stash: git stash push -m "WIP: switching to new branch"
   • Commit: Guide through commit process first
   • Abort: Cancel branch creation

3. Ensure Latest Default Branch
   Invoke the git-sync skill to pull the latest changes from the default branch.

4. Determine Branch Prefix
   Based on work type:

   • feat/ - New features
   • fix/ - Bug fixes
   • chore/ - Maintenance, tooling
   • docs/ - Documentation
   • refactor/ - Code refactoring
   • test/ - Test additions/fixes
   • perf/ - Performance improvements

5. Create Branch

   git checkout -b <prefix>/<description>

   Branch name format:

   • Use kebab-case
   • Maximum 50 characters
   • Descriptive but concise
   • Example: feat/add-user-authentication

Switching Branches

1. Check Repository State
   Invoke the git-state-validator skill to verify:

   • Current branch name
   • Uncommitted changes
   • Working directory status

2. Handle Changes (if any)

   • Offer to stash, commit, or abort
   • If stash: git stash push -m "WIP: switching from <current> to <target>"

3. Switch Branch

   git checkout <branch-name>

4. Restore Stash (if applicable)
   After switching, if user stashed:

   git stash list
   git stash pop

Cleaning Up Branches

1. Verify Branch is Merged

   git branch --merged main

2. Switch to Main (if on the branch being deleted)

   git checkout main

3. Check Branch Exists Before Deletion

   git branch --list <branch-name>

   If no output, branch doesn't exist - skip deletion

4. Delete Local Branch (only if exists)

   git branch -d <branch-name>

   Use -D (force delete) only if user explicitly confirms:

   git branch -D <branch-name>

5. Verify Deletion

   git branch --list <branch-name>

Safe Branch Deletion Helper

CRITICAL: Always check if branch exists before attempting deletion to avoid errors.

Safe Deletion Pattern:

# Check if branch exists
if git branch --list <branch-name> | grep -q <branch-name>; then
  git branch -d <branch-name>
  echo "Branch deleted"
else
  echo "Branch does not exist, skipping"
fi

Why This Matters:

• Prevents "branch not found" errors in automated workflows
• Handles cases where remote deletion already removed local tracking branch
• Makes cleanup scripts idempotent (safe to run multiple times)

Branch Naming Conventions

Good Examples:

• feat/user-profile-page
• fix/login-validation-error
• chore/update-dependencies
• docs/api-endpoint-guide

Bad Examples:

• my-branch (no type prefix)
• feat/ThisIsMyNewFeature (not kebab-case)
• feat/add-the-new-user-profile-page-with-authentication-and-settings (too long)

Error Handling

Branch Already Exists:
Ask user to:

• Switch to existing: git checkout <branch-name>
• Delete and recreate: git branch -D <branch-name> && git checkout -b <branch-name>
• Choose different name

Uncommitted Changes Conflict:

error: Your local changes to the following files would be overwritten by checkout

• Must stash or commit changes first
• Cannot proceed without handling changes

Merge Conflicts When Pulling:

error: Merge conflict in <file>

• Must resolve conflicts before creating branch
• Guide user through conflict resolution

Cannot Delete Current Branch:

error: Cannot delete branch '<name>' checked out at '<path>'

• Must switch to different branch first
• Run: git checkout main then retry delete

Examples

Example 1: Create feature branch for issue

Context: Working on issue #42 to add dark mode
Action:
1. Check uncommitted changes (none found)
2. Switch to main: git checkout main
3. Update main: git pull origin main
4. Create branch: git checkout -b feat/add-dark-mode-toggle
Output: "Created and switched to feat/add-dark-mode-toggle"

Example 2: Switch branches with uncommitted work

Context: User has uncommitted changes, wants to switch branches
Action:
1. Detect uncommitted changes
2. Ask user: "You have uncommitted changes. Stash, commit, or abort?"
3. User chooses stash
4. Run: git stash push -m "WIP: switching branches"
5. Switch: git checkout other-branch
6. Offer to pop stash if returning later

Example 3: Clean up after merge

Context: PR merged, need to clean up local branch
Action:
1. Verify branch is merged: git branch --merged main
2. Switch to main: git checkout main
3. Check if branch exists: git branch --list feat/old-feature
4. Delete branch (if exists): git branch -d feat/old-feature
5. Update main: git pull origin main
Output: "Branch cleaned up, main is up to date"

Example 4: Handle branch naming

Context: User wants to fix a bug in login validation
Action:
1. Determine type: "fix" (bug fix)
2. Extract description: "login validation"
3. Format: fix/login-validation-error
4. Create: git checkout -b fix/login-validation-error