Spelungit MCP Server

A Model Context Protocol (MCP) server for exploring Git commit history using semantic search. Search through commits with natural language commands like "Search git history to find out why was this class added?"

✨ Features

• 🔍 Semantic Search: Natural language queries over Git commit history
• 🌳 Multi-Repository Support: Automatically detects and isolates different repositories
• ⚡ Zero-Config Installation: Works out of the box with SQLite + local embeddings
• 🎯 Code-Aware Search: Hybrid embeddings optimized for code changes and technical content
• 📊 Git Worktree Support: Handles complex Git setups including worktrees
• 🚀 Claude Code Integration: Automatic configuration for Claude Code

🚀 Quick Install

One-line installation (recommended for end users):

curl -sSL https://raw.githubusercontent.com/haacked/spelungit/main/install-remote.sh | bash

This command will:

• Download and install Spelungit automatically
• Set up a Python virtual environment
• Install dependencies (sentence-transformers, SQLite, numpy)
• Configure Claude Code automatically
• Test the installation

Requirements: Python 3.8+ and curl/wget

🔧 Advanced Installation

Option 1: Clone and Install

For developers or users who prefer to clone the repository:

git clone https://github.com/haacked/spelungit.git
cd spelungit
./install.sh

Option 2: Manual Installation

# Create virtual environment
python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate

# Install dependencies
pip install -r requirements.txt

# Test the installation
python -m spelungit.server --test

Add to your Claude Code configuration (~/.config/claude/claude_desktop_config.json):

{
  "mcpServers": {
    "spelungit": {
      "command": "/path/to/venv/bin/python",
      "args": ["-m", "spelungit.server"],
      "env": {
        "PYTHONPATH": "/path/to/spelungit/src"
      }
    }
  }
}

📖 Usage

Available Tools

1. search_commits - Search commits using natural language
2. index_repository - Index a repository for search
3. repository_status - Check indexing status
4. get_database_info - View database statistics
5. search_blame - Search code blame data using natural language
6. who_wrote - Find authors who wrote code matching a query
7. configure_auto_update - Configure automatic index update behavior
8. get_auto_update_config - Get current automatic index update configuration

Example Queries

# Search for authentication-related changes
search_commits(query="authentication login changes", limit=5)

# Find database migration commits
search_commits(query="database schema migration", author_filter="john")

# Look for bug fixes
search_commits(query="fix error exception handling")

# Search blame information for specific code
search_blame(query="authentication middleware setup")

# Find who wrote specific functionality
who_wrote(query="database connection pooling", limit=3)

First Time Setup

1. Index your repository:

   index_repository()
   

   This processes all commits and creates embeddings for search.

2. Check status:

   repository_status()
   

3. Start searching:

   search_commits(query="your search query")
   

🏗️ Architecture

Zero-Config Design

• SQLite Database: No external database setup required
• Local Embeddings: Uses sentence-transformers + code pattern matching
• Automatic Detection: Discovers repositories and handles Git worktrees
• Hybrid Search: Combines semantic understanding with code-specific patterns

Code-Aware Features

• Function/Class Detection: Recognizes code structure changes
• File Type Weighting: Prioritizes different file types appropriately
• Directory Analysis: Understands project structure (test/, auth/, api/, etc.)
• **Co-autho

... View full README on GitHub