Git Cleanup

Intelligently identify and remove stale branches, orphaned remotes, and unused worktrees — with confirmation at every step.

Preferences

Before starting, use the Read tool to read ~/.claude/skills/git-cleanup/preferences.md. If the file does not exist, treat as "no preferences set".

Context

_On startup, use Bash to detect: working directory, git repos in cwd (directories with .git), and current git branch. Skip any that fail._

Command routing

Check $ARGUMENTS:

• `help` → display help then stop
• `config` → interactive setup then stop
• `reset` → delete ~/.claude/skills/git-cleanup/preferences.md, confirm, stop
• anything else → parse as natural language or repo path, then run

Help

Git Cleanup — Smart cleanup of stale branches, remotes, and worktrees

Usage:
  /git-cleanup                              Auto-detect repos, clean everything
  /git-cleanup ai-assemble                  Clean a specific repo
  /git-cleanup just local branches          Natural language — local only
  /git-cleanup dry run                      Show what would be deleted
  /git-cleanup skip linear                  Skip Linear issue checks
  /git-cleanup ai-assemble remote only      Clean only remote branches
  /git-cleanup config                       Set preferences
  /git-cleanup reset                        Clear preferences
  /git-cleanup help                         This help

Smart detection:
  - If inside a git repo, uses that repo
  - If in a parent directory, scans for git repos and lets you pick
  - If one repo found, uses it automatically

Current preferences:
  (shown above under Preferences)

Config

Use AskUserQuestion to collect:

• Q1: Protected branches — branches to never delete (default: main, all-demos, develop)
• Q2: Linear integration — Enable Linear issue status checks? (default: Yes)
• Q3: Ticket pattern — regex to extract ticket IDs from branch names (default: AIS-\d+)
• Q4: Auto-confirm merged — Auto-delete branches already merged into base? (default: No — always ask)

Save to ~/.claude/skills/git-cleanup/preferences.md.

Reset

Delete ~/.claude/skills/git-cleanup/preferences.md and confirm: "Preferences cleared. Using defaults."

First-time detection

If no preferences file exists, show:

First time using /git-cleanup? Run /git-cleanup config to set defaults, or just continue with sensible defaults.

Then proceed with defaults:

• Protected branches: main, all-demos, develop
• Linear integration: enabled
• Ticket pattern: AIS-\d+
• Auto-confirm merged: no

Workflow

Step 1: Parse arguments and find repos

Parse $ARGUMENTS as natural language. Extract:

• Repo path — explicit path, or auto-detect
• Scope modifiers — "local only", "remote only", "worktrees only"
• Dry run — "dry run", "preview", "just show"
• Skip integrations — "skip linear", "no linear", "no ticket check"

Smart repo detection:

1. If $ARGUMENTS contains a path or directory name → use it
2. If currently inside a git repo (.git exists) → use current directory
3. If in a parent directory → scan child directories for .git

• If exactly one repo found → use it automatically
• If multiple found → ask user which to clean (or "all")
• If none found → error and stop

Step 2: Gather git state

For each repo, collect:

# Protected branches (from prefs or defaults)
PROTECTED="main|all-demos|develop"

# Local branches and their merge status
git branch --format='%(refname:short) %(upstream:track)'
git branch --merged main
git branch --merged all-demos

# Remote branches
git branch -r --format='%(refname:short)'

# Worktrees
git worktree list

# Stale remote tracking
git remote prune origin --dry-run

Step 3: Categorize branches

Sort every branch into one of these categories:

Safe to delete (green):

• Local branches fully merged into a protected branch
• Local branches with [gone] upstream (remote deleted)
• Remote branches with no corresponding local branch AND no open PR

Probably safe (yellow):

• Branches matching a ticket pattern where the Linear issue is Done/Canceled/Duplicate
• Branches older than 90 days with no recent commits
• Worktrees pointing to branches in the "safe" category

Needs review (red):

• Branches with unmerged commits
• Branches matching a ticket pattern where the Linear issue is still open/in-progress
• The current branch (never auto-delete)
• Protected branches (never delete)

Step 4: Check Linear context (unless skipped)

For branches matching the ticket pattern (e.g., mostafa/ais-921-... → AIS-921):

1. Extract ticket ID from branch name using the configured pattern
2. Use mcp__claude_ai_Linear__get_issue to fetch issue status
3. Map status:

• Done, Canceled, Duplicate → "probably safe" (issue is closed)
• In Progress, In Review, Todo → "needs review" (issue is active)
• Not found → "needs review" (can't confirm)

Present the Linear context alongside each branch.

Step 5: Present cleanup plan

Show a categorized summary:

Git Cleanup Plan — ai-assemble

SAFE TO DELETE (merged/gone):
  Local:
    - feature/old-thing          (merged into main)
    - fix/typo                   (remote gone)
  Remote:
    - origin/feature/old-thing   (no local, no PR)

PROBABLY SAFE (closed tickets):
  Local:
    - mostafa/ais-800-old-task   (AIS-800: Done ✓)
  Worktrees:
    - .pilot-worktree            (branch deleted)

NEEDS REVIEW:
    - mostafa/ais-922-refactor   (AIS-922: In Progress)

PROTECTED (never touched):
    - main, all-demos, develop

If --dry-run / "dry run" was specified, show this plan and stop.

Step 6: Confirm and execute

Use AskUserQuestion to confirm each category:

Q1: "Delete N safe-to-delete branches?" → Yes all / Pick individually / Skip Q2: "Delete N probably-safe branches?" → Yes all / Pick individually / Skip Q3: "Any needs-review branches to delete?" → Pick individually / Skip all

For each confirmed deletion:

• Local branch: git branch -d <branch> (safe delete) or git branch -D <branch> if needed
• Remote branch: git push origin --delete <branch>
• Worktree: git worktree remove <path>
• Stale remotes: git remote prune origin

Report each deletion as it happens.

Step 7: Report results

Git Cleanup Complete — ai-assemble

  Local branches deleted:   3
  Remote branches deleted:  2
  Worktrees removed:        1
  Stale remotes pruned:     yes

  Skipped (needs review):   2
  Protected:                3

Extensibility

The skill is designed to work with any ticketing integration. The core pattern is:

1. Extract ticket ID from branch name using a configurable regex
2. Look up ticket status via an integration (Linear MCP, GitHub issues, Jira, etc.)
3. Map status to safe/unsafe categories

To add a new integration:

• Update config to allow selecting the integration type
• Add the appropriate MCP tools to allowed-tools
• Add a status lookup step in Step 4

Principles

• Never delete without confirmation — every deletion is explicitly confirmed by the user, even "safe" ones (unless auto-confirm is configured).
• Never touch protected branches — main, all-demos, develop, and any configured protected branches are untouchable.
• Context over heuristics — prefer Linear/ticketing status over age-based heuristics when deciding if a branch is safe to delete.
• Show the reasoning — always explain WHY a branch is categorized as safe/probably-safe/needs-review.
• Graceful without integrations — if Linear is unavailable or skipped, fall back to git-only heuristics (merge status, remote tracking, age).