git-master

Complete Git expertise for ALL operations with 2025 features (Git 2.49+, GitHub CLI 2.x). PROACTIVELY activate for: (1) ANY Git task, (2) Git 2.49+ features (git-backfill, path-walk API, reftables, sparse-checkout, worktrees), (3) Security (signed commits, zero-trust, secret scanning, CodeQL), (4) Trunk-Based Development, (5) GitHub CLI 2.x (Copilot CLI, model evaluations), (6) GitHub Actions 2025 (1 vCPU runners, immutable releases), (7) Modern workflows (monorepo, parallel development), (8) History rewriting/recovery. Provides: Git 2.49 git-backfill for partial clones, path-walk API, reftables migration, sparse-checkout (90% space reduction), worktrees, GitHub Copilot CLI, gh models eval, zero-trust security, signed commits (GPG/SSH), GitHub Actions 2025 features, automatic backups, safety guardrails, reflog recovery.

Installation

npx claude-plugins install @JosiahSiegel/claude-code-marketplace/git-master

Contents

Folders: commands, skills

Files: README.md

Documentation

Complete Git expertise system for ALL Git operations - from basic to advanced, including dangerous operations with comprehensive safety guardrails.

🎯 What This Plugin Does

When installed, Claude becomes a complete Git expert with:

• Comprehensive Git Knowledge - Every command, option, and workflow
• Safety Guardrails - Warnings and confirmations for destructive operations
• Platform Expertise - Windows, Linux, macOS, GitHub, Azure DevOps, Bitbucket
• Workflow Strategies - Git Flow, GitHub Flow, trunk-based development
• Advanced Operations - Rebase, cherry-pick, filter-repo, history rewriting
• Recovery Expertise - Reflog, fsck, recovering from any mistake
• User Control - Always asks about automatic commits vs manual control

📦 Installation

Via GitHub Marketplace (Recommended)

/plugin marketplace add JosiahSiegel/claude-plugin-marketplace
/plugin install git-master@claude-plugin-marketplace

Local Installation (Mac/Linux)

⚠️ Windows users: Use the GitHub marketplace method instead.

# Extract to plugins directory
unzip git-master.zip -d ~/.local/share/claude/plugins/

🚀 Features

1. Complete Git Command Reference

Covers every Git command from basic to advanced:

• Basic Operations: init, clone, add, commit, push, pull, status, log, diff
• Branching: branch, switch, checkout, merge strategies
• Advanced: rebase (interactive & non-interactive), cherry-pick, reflog
• Dangerous: reset –hard, force push, filter-repo, history rewriting
• Recovery: reflog recovery, fsck, lost commit recovery
• Maintenance: gc, prune, repack, optimization
• Collaboration: Pull requests, merge requests, code review workflows

2. Safety Guardrails

Every dangerous operation includes:

• ⚠️ Explicit warnings about risks
• 🔒 Confirmation prompts before execution
• 💾 Automatic backup branch creation
• 🔄 Recovery instructions if something goes wrong
• 📋 Pre-flight checklists for critical operations

Example safety protocol for git reset --hard:

⚠️  WARNING: This operation is DESTRUCTIVE and will:
   - Permanently delete uncommitted changes
   - Cannot be undone (except via reflog)

Safety recommendation: Creating backup branch first...
✓ Created: backup-before-reset-20251023-143022

To recover if needed: git reset --hard backup-before-reset-20251023-143022

Are you SURE you want to proceed? (yes/NO): _

3. User Preference Management

First question on any Git task:

Would you like me to:
1. Create commits automatically with appropriate messages
2. Stage changes only (you handle commits manually)
3. Just provide guidance (no automatic operations)

Your choice: _

Claude respects your choice throughout the session.

4. Platform-Specific Expertise

Windows (Git Bash/PowerShell):

• Line ending configuration (CRLF vs LF)
• Windows Credential Manager integration
• Git Bash/MINGW path conversion handling
• Path separator handling
• Case sensitivity considerations
• Shell detection ($MSYSTEM, uname -s)

Git Bash Path Conversion (Critical for Windows): Git Bash automatically converts Unix-style paths, which can affect Git operations:

• Provides MSYS_NO_PATHCONV environment variable control
• Includes cygpath conversion utilities
• Offers workarounds for common path issues
• Documents path quoting requirements
• Explains shell detection patterns

Linux/macOS:

• SSH key management
• Permission handling
• Shell-specific configurations
• Package manager integration

Cloud Platforms:

• GitHub: PR workflows, GitHub Actions, GitHub CLI (gh)
• Azure DevOps: Azure Repos, Azure Pipelines, branch policies
• Bitbucket: Bitbucket Pipelines, Jira integration
• GitLab: GitLab CI/CD, merge request workflows

5. Comprehensive Slash Commands

/git-master:git-cleanup

Clean up repository safely:

• Remove merged branches
• Prune remote-tracking branches
• Run garbage collection
• Optimize repository size

/git-master:git-safe-rebase

Interactive rebase with safety:

• Automatic backup branch creation
• Shared branch detection
• Step-by-step guidance
• Recovery instructions

/git-master:git-recover

Recover from Git mistakes:

• Find lost commits via reflog
• Recover deleted branches
• Restore deleted files
• Undo accidental force push
• Repair corrupted repository

/git-master:git-history-rewrite

⚠️ EXTREMELY DANGEROUS - History rewriting with maximum safety:

• Comprehensive pre-flight checks
• Full repository backup
• Team coordination verification
• Remove sensitive files
• Remove large files
• Change author information
• Complete rollback procedures

6. Workflow Strategies

Git Flow:

main/master (production)
  ├── develop (integration)
  │   ├── feature/user-auth
  │   ├── feature/api-integration
  │   └── feature/ui-redesign
  ├── release/v1.2.0
  └── hotfix/security-patch

GitHub Flow:

main (always deployable)
 

...(truncated)

## Included Skills

This plugin includes 5 skill definitions:

### git-2-49-features

> Git 2.49+ features including git-backfill, path-walk API, and performance improvements

<details>
<summary>View skill definition</summary>

# Git 2.49+ Features (2025)

## git-backfill Command (New in 2.49)

**What:** Efficiently download missing objects in partial clones using the path-walk API.

**Why:** Dramatically improves delta compression when fetching objects from partial clones, resulting in smaller downloads and better performance.

### Basic Usage

```bash
# Check if you have a partial clone
git config extensions.partialClone

# Download missing objects in background
git backfill

# Download with custom batch size
git backfill --batch-size=1000

# Respect sparse-checkout patterns (only fetch needed files)
git backfill --sparse

# Check progress
git backfill --verbose

When to Use

Scenario 1: After cloning with –filter=blob:none

# Clone without blobs
git clone --filter=blob:none https://github.com/large/repo.git
cd repo

# Later, prefetch all missing objects efficiently
git backfill

Scenario 2: Sparse-checkout + Partial clone

# Clone with both optimizations
git clone --filter=blob:none --sparse https://github.com/monorepo.git
cd monorepo
git sparse-checkout set src/api

# Fetch only needed objects
git backfill --sparse

Scenario 3: CI/CD Optimization

# In CI pipeline - fetch only what's needed
git clone --filter=blob:none --depth=1 repo
git backfill --sparse
# Much faster than full clone

Performance Comparison

Traditional partial clone fetch:

git fetch --unshallow
# Downloads 500MB in random order
# Poor delta compression

git-2025-features

Git 2.49+ features including reftables, sparse-checkout, partial clone, git-backfill, and worktrees

git-master

“Complete Git expertise system for ALL git operations. PROACTIVELY activate for: (1) ANY Git task (basic/advanced/dangerous), (2) Repository management, (3) Branch strategies and workflows, (4) Conflict resolution, (5) History rewriting/recovery, (6) Platform-specific operations (GitHub/Azure DevOps/Bitbucket), (7) Advanced commands (rebase/cherry-pick/filter-repo). Provides: complete Git command reference, safety guardrails for destructive operations, platform best practices, workflow strategies, reflog recovery techniques, and expert guidance for even the most risky operations. Always asks user preference for automatic commits vs manual control.”

# ALWAYS check status first
git status
git log --oneline -10

# For risky operations, create a safety branch
git branch backup-$(date +%Y%m%d-%H%M%S)

# Remember: git reflog is your safety net (90 days default)
git reflog

git-security-2025

Git security best practices for 2025 including signed commits, zero-trust workflows, secret scanning, and verification

github-actions-2025

GitHub Actions 2025 features including 1 vCPU runners, immutable releases, and Node24 migration

# .github/workflows/automation.yml
name: Lightweight Automation

on:
  issues:
    types: [opened, labeled]

jobs:
  triage:
    runs-on: ubuntu-latest-1-core  # New 1 vCPU runner
    timeout-minutes: 10  # Max 15 minutes
    steps:
      - name: Triage Issue
        run: |
          echo "Triaging issue..."
          gh issue edit ${{ github.event.issue.number }} --add-label "needs-review"          

# Before: Using 2 vCPU runner for simple task
jobs:
  label:
    runs-on: ubuntu-latest  # 2 vCPU, higher cost
    steps:
      - name: Add label
        run: gh pr edit ${{ github.event.number }} --add-label "reviewed"

# After: Using 1 vCPU runner (lower cost)
jobs:
  label:
    runs-on: ubuntu-latest-1-core  # 1 vCPU, 50% cost reduction
    timeout-minutes: 5
    steps:
      - name: Add label
        run: gh pr edit ${{ github.event.number }} --ad

...(truncated)

</details>

## Source

[View on GitHub](https://github.com/JosiahSiegel/claude-code-marketplace)