ProjGraph MCP Server

ProjGraph

.NET tool ecosystem for visualizing project dependencies, database schemas, and class hierarchies.

ProjGraph is a .NET tool ecosystem for visualizing project dependencies, database schemas, and class hierarchies. It provides both a CLI for manual analysis and an MCP server for AI-assisted exploration of your codebase architecture.

🚀 Quick Start

CLI Tool

Install and use the command-line tool for immediate visualization:

# Install
dotnet tool install -g ProjGraph.Cli

# Visualize project dependencies
projgraph visualize ./MySolution.slnx

# Generate Entity Relationship Diagram (from DbContext or ModelSnapshot)
projgraph erd ./Data/MyDbContext.cs

# Generate Class Diagram for a class and its hierarchy
projgraph classdiagram ./Models/User.cs

# Compute key solution metrics (project counts, depth, hotspots)
projgraph stats ./MySolution.slnx

📖 Full CLI Documentation

MCP Server

Configure your MCP client (e.g., GitHub Copilot, Claude) with the following settings:

Find the latest version number on NuGet

{
  "servers": {
    "ProjGraph.Mcp": {
      "type": "stdio",
      "command": "dnx",
      "args": ["ProjGraph.Mcp@x.x.x", "--yes"]
    }
  }
}

📖 Full MCP Documentation

✨ Key Features

• 📊 Multiple Output Formats: ASCII tree and Mermaid.js diagrams
• 🗄️ Entity Relationship Diagrams: Generate ERDs from EF Core DbContext or ModelSnapshot files
• 🏗️ Class Hierarchies: Visualize class diagrams with inheritance and dependencies
• 📈 Solution Metrics: Project counts, type breakdown, dependency depth, and hotspot detection
• 📁 Modern .NET Support: Full support for .slnx, .sln, and .csproj files
• 🤖 AI Integration: MCP server for GitHub Copilot, Claude, and other AI assistants
• ⚡ Fast & Reliable: Efficient parsing and graph algorithms

🛠️ Development

Prerequisites

• .NET 10.0 SDK or later

Run Locally

# CLI
dotnet run --project src/ProjGraph.Cli -- visualize ./ProjGraph.slnx

# Stats
dotnet run --project src/ProjGraph.Cli -- stats ./ProjGraph.slnx

# MCP Server
dotnet run --project src/ProjGraph.Mcp

📝 Usage Examples

Analyze Project Dependencies

# Mermaid format (default)
projgraph visualize ./MySolution.sln

# ASCII tree format
projgraph visualize ./MySolution.sln --format tree

# Mermaid format for documentation
projgraph visualize ./MySolution.slnx --format mermaid --output docs/dependencies.mmd

Generate Database Diagrams

# Generate ERD from DbContext
projgraph erd ./Data/MyDbContext.cs

# Generate ERD from ModelSnapshot (leveraging migrations)
projgraph erd ./Migrations/MyDbContextModelSnapshot.cs

# Output to Markdown for documentation
projgraph erd ./Data/MyDbContext.cs --output docs/database-schema.md

Shortened. The full README is on GitHub.