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Hybrid AI orchestration stack combining local LLMs (Ollama), vector search (Qdrant), and Azure AI Foundry for scalable RAG, Agentic AI, and Vision. Built with .NET 8 and Python.

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DocuMind Engineering

🚀 Comprehensive AI Orchestration Platform combining local LLMs, cloud AI services, and advanced agent frameworks for intelligent document processing and multi-modal AI workflows.

🏗️ Architecture Overview

🎯 Core Services

┌─────────────────────────────────────────────────────────────┐
│                    Frontend Layer                           │
│  Web UI  │  REST Clients  │  Swagger/OpenAPI Documentation │
└─────────────────────────┬───────────────────────────────────┘
                          │
┌─────────────────────────▼───────────────────────────────────┐
│                    .NET Services                            │
│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ ┌─────────┐ │
│ │DocuMind.Api │ │Vision:7002  │ │Semantic:5076│ │Agent:8082│ │
│ │    :5266    │ │             │ │    Kernel   │ │Framework │ │
│ └─────────────┘ └─────────────┘ └─────────────┘ └─────────┘ │
└─────────────────────────┬───────────────────────────────────┘
                          │
┌─────────────────────────▼───────────────────────────────────┐
│                 Python AI Services                         │
│  ┌─────────────┐ ┌─────────────┐ ┌─────────────┐          │
│  │ RAG API     │ │ Embeddings  │ │ Reranking   │          │
│  │   :7001     │ │   BAAI/bge  │ │    Jina     │          │
│  └─────────────┘ └─────────────┘ └─────────────┘          │
└─────────────────────────┬───────────────────────────────────┘
                          │
┌─────────────────────────▼───────────────────────────────────┐
│              Storage & AI Infrastructure                    │
│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ ┌─────────┐ │
│ │ Qdrant:6333 │ │ Ollama LLM  │ │Azure OpenAI │ │Azure    │ │
│ │Vector Store │ │ Phi-3.5 3.8B│ │ GPT-4o-mini │ │Vision   │ │
│ └─────────────┘ └─────────────┘ └─────────────┘ └─────────┘ │
└─────────────────────────────────────────────────────────────┘

🚀 Service Portfolio

Service Port Description Status
DocuMind.Api 5266 Main orchestration service ✅ Operational
Documind.Vision 7002 Azure AI Vision integration ✅ Operational
Semantic Kernel 5076 Educational AI workflows ✅ Ready
Agent Framework 8082 Next-gen agent orchestration ✅ Operational
🆕 MCP Server 9090 .NET 10 Model Context Protocol 🚀 New!
Legacy Agents 8081 Original agent service ✅ Running
Python RAG API 7001 AI processing engine ✅ CUDA Enabled
Qdrant Vector DB 6333 Vector storage ✅ Memory Mode

🆕 .NET 10 with Model Context Protocol (MCP)

🎯 MCP Framework Integration

Microsoft has integrated the Model Context Protocol (MCP) natively into .NET 10, providing a standardized way for AI applications to interact with external tools, resources, and data sources.

🔥 Key Features:

  • Native MCP Support: Built directly into .NET 10 framework
  • Tool Execution: Dynamic registration and execution of AI tools
  • Resource Management: Secure access to external data sources
  • Prompt Templates: Advanced template system for AI interactions
  • Integration: Seamless integration with Semantic Kernel and Agent Framework

🚀 MCP Service (Port 9090):

# Start .NET 10 services with MCP
bash scripts/start-dotnet10-mcp.sh

# Test MCP capabilities
curl -X POST http://localhost:9090/mcp/tools/document_analysis \
  -H "Content-Type: application/json" \
  -d '{"content": "Sample text", "analysis_type": "summary"}'

📊 Enhanced Services with MCP

Framework MCP Integration Capabilities
Semantic Kernel ✅ Enhanced SK plugins → MCP tools
Agent Framework ✅ Native Multi-agent MCP coordination
Vision Service ✅ Enabled Image processing via MCP
Main API ✅ Orchestration MCP-aware request routing

Technology Stack

🛠️ Technology Stack

🔧 Backend Services

  • 🆕 .NET 10 / ASP.NET Core: Enhanced with native MCP framework support
  • .NET 8 / ASP.NET Core: Main orchestration with Swagger documentation (Legacy)
  • Python 3.11 / FastAPI: RAG processing and AI model inference
  • Docker: Containerized services and vector database

🤖 AI & ML Stack

  • 🆕 Model Context Protocol: Native .NET 10 framework for AI tool integration
  • Local LLM: Ollama Phi-3.5 3.8B (CUDA acceleration)
  • Cloud LLM: Azure OpenAI GPT-4o-mini
  • Embeddings: BAAI/bge-m3 (1024-dimensional vectors)
  • Reranking: Jina reranker v1-turbo-en (cross-encoder)
  • Vision: Azure AI Vision for OCR and image analysis
  • Frameworks: Microsoft Semantic Kernel + Agent Framework (both MCP-enhanced)

📊 Database & Storage

  • Vector Database: Qdrant (cosine similarity, persistent storage)
  • Document Storage: Local file system with staging support
  • Configuration: JSON-based with environment overrides

🚀 Quick Start Guide

📋 Prerequisites

System Requirements:

  • Ubuntu 20.04+ / Windows 11 with WSL2
  • NVIDIA GPU with CUDA 12.1+ (for local AI)
  • Docker & Docker Compose
  • 🆕 .NET 10 SDK (for MCP framework support)
  • .NET 8 SDK (fallback compatibility)
  • Python 3.10+

Verify CUDA & .NET Support:

nvidia-smi  # Should show GPU details
nvcc --version  # CUDA compiler version
dotnet --version  # Should be 10.x.x for full MCP support

⚡ One-Line Setup

# Complete environment setup (automated)
bash scripts/provision/workspace-infra-setup/setup-workspace.bash

🛠️ Manual Setup (Development)

1. Clone & Navigate

git clone <repository-url>
cd documind-engineering

2. Infrastructure Setup

# Start all Docker services
./scripts/dev-up.sh

# Verify Qdrant vector database
curl http://localhost:6333/health

3. Python Environment

# Create conda environment
conda env create -f src/python/environment.yml
conda activate documind

# Install additional packages
pip install -r src/python/requirements.txt

4. .NET Dependencies

cd src/dotnet/DocuMind.Api
dotnet restore

🎯 Service Startup

Start All Services (Production Mode):

# Start infrastructure
./scripts/dev-up.sh

# Start Python RAG API with CUDA
cd src/python
uvicorn services.rag_api.app:app --host 0.0.0.0 --port 7001

# Start .NET main API
cd src/dotnet/DocuMind.Api/DocuMind.Api
dotnet run --urls "http://localhost:5266"

# Start Vision API
cd src/dotnet/DocuMind.Api/Documind.Vision
dotnet run --urls "http://localhost:7002"

Educational Workflows:

# Start Semantic Kernel service
cd src/dotnet/DocuMind.Api/DocuMind.Agents.SemanticKernel
dotnet run --urls "http://localhost:5076"

# Start Agent Framework service
cd src/dotnet/DocuMind.Api/DocuMind.Agents.AgentFramework
dotnet run --urls "http://localhost:8082"

🧪 Health Verification

Service Health Check:

# Check all services
curl http://localhost:5266/health  # Main API
curl http://localhost:7001/health  # Python RAG
curl http://localhost:7002/health  # Vision API
curl http://localhost:5076/health  # Semantic Kernel
curl http://localhost:8082/health  # Agent Framework
curl http://localhost:6333/health  # Qdrant Vector DB

Quick AI Test:

# Test RAG processing
curl -X POST "http://localhost:5266/api/ask" \
  -H "Content-Type: application/json" \
  -d '{"question": "What is artificial intelligence?"}'

# Test agent frameworks comparison
curl "http://localhost:5076/semantickernel/workflows/list"
curl "http://localhost:8082/agentframework/workflows/list"

📚 Educational Framework Comparison

🎓 Agent Framework Learning

This project includes educational implementations comparing Microsoft's Semantic Kernel and Agent Framework approaches:

Semantic Kernel (Port 5076):

  • Traditional function composition
  • Direct kernel service integration
  • Compatible with production packages
  • Proven stability for enterprise use

Agent Framework (Port 8082):

  • Next-generation agent orchestration
  • Multi-agent collaboration patterns
  • Educational compatibility layer
  • Future-ready architecture concepts

🔬 Learning Endpoints

# List available workflows
curl "http://localhost:5076/semantickernel/workflows/list"
curl "http://localhost:8082/agentframework/workflows/list"

# Execute educational workflows
curl -X POST "http://localhost:5076/semantickernel/execute/simple" \
  -H "Content-Type: application/json" \
  -d '{"input": "learning example"}'

curl -X POST "http://localhost:8082/agentframework/execute/collaborative" \
  -H "Content-Type: application/json" \
  -d '{"query": "multi-agent example"}'

📖 Key Learning Concepts:

  • Function composition vs agent orchestration
  • Sequential vs parallel processing
  • State management approaches
  • Error handling strategies
  • Performance optimization patterns

🔧 Configuration Management

🌍 Environment Variables

Create .env file in project root:

# Azure OpenAI Configuration
AZURE_OPENAI_ENDPOINT=https://documind-openai.openai.azure.com/
AZURE_OPENAI_API_KEY=your_api_key_here
AZURE_OPENAI_DEPLOYMENT_NAME=gpt-4o-mini

# Azure Vision Configuration
AZURE_VISION_ENDPOINT=https://your-vision-resource.cognitiveservices.azure.com/
AZURE_VISION_API_KEY=your_vision_key_here

# Vector Database
QDRANT_URL=http://localhost:6333
QDRANT_COLLECTION_NAME=documents

# Local LLM Configuration
OLLAMA_HOST=http://localhost:11434
OLLAMA_MODEL=phi3.5:3.8b

⚙️ Service Configuration

appsettings.json locations:

src/dotnet/DocuMind.Api/DocuMind.Api/appsettings.json               # Main API
src/dotnet/DocuMind.Api/Documind.Vision/appsettings.json           # Vision Service
src/dotnet/DocuMind.Api/DocuMind.Agents.SemanticKernel/appsettings.json    # Semantic Kernel
src/dotnet/DocuMind.Api/DocuMind.Agents.AgentFramework/appsettings.json    # Agent Framework

📡 API Documentation

🎯 Main Orchestration API (Port 5266)

Core Endpoints:

GET    /health                           # Service health check
POST   /api/ask                          # Intelligent Q&A processing
GET    /api/documents                    # List processed documents
POST   /api/documents/upload             # Upload new documents
DELETE /api/documents/{id}               # Remove documents

Swagger UI: http://localhost:5266/swagger

🖼️ Vision API (Port 7002)

Vision Endpoints:

GET    /health                           # Vision service health
POST   /api/vision/analyze               # Image analysis
POST   /api/vision/ocr                   # Text extraction from images
POST   /api/vision/describe              # Image description

🧠 Python RAG API (Port 7001)

RAG Processing:

GET    /health                           # RAG service health
POST   /query                            # Direct RAG query processing
GET    /models/status                    # Model loading status
POST   /embeddings                       # Generate embeddings
POST   /rerank                           # Rerank search results

🗂️ Project Structure Deep Dive

📁 Directory Organization

documind-engineering/
├── 🐳 docker/                           # Docker Compose configurations
│   └── compose.yml                      # Qdrant vector database setup
├── 🏗️ infra/                           # Kubernetes & Infrastructure
│   └── k8s/                            # K8s deployment manifests
├── 📊 IaC/                             # Infrastructure as Code
│   ├── main.bicep                      # Azure Bicep templates
│   └── parameters.json                 # Deployment parameters
├── 📚 data/                            # Data storage
│   ├── docs/                           # Document ingestion
│   └── staging/                        # Processing workspace
├── 🧪 notebooks/                       # Jupyter analysis notebooks
├── 📦 models/                          # Local model storage
├── 📜 scripts/                         # Automation scripts
│   ├── dev-up.sh                       # Start development environment
│   ├── dev-down.sh                     # Stop services
│   ├── dev-reset.sh                    # Reset environment
│   └── provision/                      # Setup automation
├── 🐍 src/python/                      # Python AI services
│   ├── environment.yml                 # Conda environment
│   ├── requirements.txt                # Pip dependencies
│   ├── services/rag_api/               # FastAPI RAG service
│   └── tests/                          # Python test suite
└── 🔷 src/dotnet/                      # .NET service collection
    └── DocuMind.Api.sln                # Main solution file
        ├── DocuMind.Api/               # Main orchestration API
        ├── Documind.Vision/            # Vision processing service
        ├── DocuMind.Agents.SemanticKernel/     # Educational SK workflows
        └── DocuMind.Agents.AgentFramework/     # Educational AF workflows

Manual Installation

1. System Dependencies

Ubuntu/Debian:

sudo apt-get update
sudo apt-get install -y build-essential git curl wget unzip jq \
    software-properties-common apt-transport-https ca-certificates

macOS:

# Install Homebrew if not already installed
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
brew install git curl wget jq

🚨 Troubleshooting Guide

🔍 Common Issues & Solutions

❌ Service Port Conflicts

# Check port usage
netstat -tlnp | grep -E ":(5266|7001|7002|5076|8082|6333)"

# Kill processes using ports
sudo lsof -ti:5266 | xargs sudo kill -9

❌ CUDA/GPU Issues

# Verify GPU availability
nvidia-smi
python -c "import torch; print(f'CUDA: {torch.cuda.is_available()}')"

# Reset CUDA context
sudo nvidia-smi --gpu-reset

❌ Docker Permission Denied

# Add user to docker group
sudo usermod -aG docker $USER
newgrp docker  # Refresh group membership

❌ Qdrant Connection Issues

# Check Qdrant status
docker ps | grep qdrant
curl http://localhost:6333/health

# Restart Qdrant
docker restart qdrant

❌ .NET Build Failures

# Clear NuGet cache
dotnet nuget locals all --clear

# Restore packages
cd src/dotnet/DocuMind.Api
dotnet clean && dotnet restore

❌ Python Environment Issues

# Recreate conda environment
conda env remove -n documind
conda env create -f src/python/environment.yml
conda activate documind

📋 Health Check Commands

Comprehensive System Check:

# Check all services
./scripts/health-check.sh

# Manual verification
ps aux | grep -E "(dotnet|python|qdrant)" | grep -v grep
netstat -tlnp | grep -E ":(5266|7001|7002|5076|8082|6333)"

Service-Specific Health:

# Main API health
curl -f http://localhost:5266/health || echo "Main API down"

# RAG API health
curl -f http://localhost:7001/health || echo "RAG API down"

# Vision API health
curl -f http://localhost:7002/health || echo "Vision API down"

# Educational services
curl -f http://localhost:5076/health || echo "Semantic Kernel down"
curl -f http://localhost:8082/health || echo "Agent Framework down"

# Vector database
curl -f http://localhost:6333/health || echo "Qdrant down"

📋 Automated Setup Scripts

🎛️ Available Scripts

Script Purpose Usage
dev-up.sh Start Docker infrastructure ./scripts/dev-up.sh
dev-down.sh Stop all services ./scripts/dev-down.sh
dev-reset.sh Reset environment completely ./scripts/dev-reset.sh
run-rag-api.sh Start Python RAG API ./scripts/run-rag-api.sh
setup-workspace.bash Complete environment setup ./scripts/provision/workspace-infra-setup/setup-workspace.bash

🔧 Create Enhanced Setup Scripts

Let's create some additional automation scripts for easier management:

# Create start-all.sh
cat > scripts/start-all.sh << 'EOF'
#!/bin/bash
set -e

echo "🚀 Starting DocuMind Engineering Platform..."

# Start infrastructure
echo "📦 Starting Docker services..."
./scripts/dev-up.sh

# Wait for Qdrant to be ready
echo "⏳ Waiting for Qdrant to be ready..."
until curl -sf http://localhost:6333/health > /dev/null; do
    sleep 2
done
echo "✅ Qdrant is ready"

# Start Python RAG API in background
echo "🐍 Starting Python RAG API..."
cd src/python
uvicorn services.rag_api.app:app --host 0.0.0.0 --port 7001 &
RAG_PID=$!
cd ../..

# Start .NET services
echo "🔷 Starting .NET services..."

# Main API
cd src/dotnet/DocuMind.Api/DocuMind.Api
dotnet run --urls "http://localhost:5266" &
MAIN_PID=$!
cd ../../../..

# Vision API
cd src/dotnet/DocuMind.Api/Documind.Vision
dotnet run --urls "http://localhost:7002" &
VISION_PID=$!
cd ../../../..

# Educational services
cd src/dotnet/DocuMind.Api/DocuMind.Agents.SemanticKernel
dotnet run --urls "http://localhost:5076" &
SK_PID=$!
cd ../../../..

cd src/dotnet/DocuMind.Api/DocuMind.Agents.AgentFramework
dotnet run --urls "http://localhost:8082" &
AF_PID=$!
cd ../../../..

echo "⏳ Waiting for services to start..."
sleep 10

echo "🧪 Running health checks..."
./scripts/health-check.sh

echo "✅ All services started successfully!"
echo "📚 Access Swagger UI: http://localhost:5266/swagger"
echo "🔧 Educational endpoints available on ports 5076 and 8082"

# Store PIDs for cleanup
echo "$RAG_PID $MAIN_PID $VISION_PID $SK_PID $AF_PID" > .service_pids
EOF

chmod +x scripts/start-all.sh
# Create health-check.sh
cat > scripts/health-check.sh << 'EOF'
#!/bin/bash

echo "🧪 DocuMind Health Check..."
echo "=========================="

services=(
    "Main API:5266:http://localhost:5266/health"
    "RAG API:7001:http://localhost:7001/health"
    "Vision API:7002:http://localhost:7002/health"
    "Semantic Kernel:5076:http://localhost:5076/health"
    "Agent Framework:8082:http://localhost:8082/health"
    "Qdrant DB:6333:http://localhost:6333/health"
)

all_healthy=true

for service in "${services[@]}"; do
    IFS=':' read -r name port url <<< "$service"
    printf "%-20s " "$name"

    if curl -sf "$url" > /dev/null 2>&1; then
        echo "✅ Healthy (Port $port)"
    else
        echo "❌ Unhealthy (Port $port)"
        all_healthy=false
    fi
done

echo "=========================="
if $all_healthy; then
    echo "🎉 All services are healthy!"
    exit 0
else
    echo "⚠️  Some services are unhealthy"
    exit 1
fi
EOF

chmod +x scripts/health-check.sh
# Create stop-all.sh
cat > scripts/stop-all.sh << 'EOF'
#!/bin/bash

echo "🛑 Stopping DocuMind Engineering Platform..."

# Kill services by PIDs if available
if [ -f .service_pids ]; then
    echo "📋 Stopping services using stored PIDs..."
    read -r pids < .service_pids
    for pid in $pids; do
        if kill -0 "$pid" 2>/dev/null; then
            echo "🔻 Stopping PID $pid"
            kill "$pid"
        fi
    done
    rm .service_pids
fi

# Kill by port/process name as backup
echo "🔍 Cleaning up remaining processes..."
pkill -f "uvicorn.*rag_api" || true
pkill -f "dotnet.*DocuMind" || true

# Stop Docker services
echo "🐳 Stopping Docker services..."
./scripts/dev-down.sh

echo "✅ All services stopped"
EOF

chmod +x scripts/stop-all.sh

🎯 Usage Examples & Workflows

🤖 AI Query Processing

Basic RAG Query:

curl -X POST "http://localhost:5266/api/ask" \
  -H "Content-Type: application/json" \
  -d '{
    "question": "What are the key benefits of vector databases?",
    "useLocalModel": false,
    "includeContext": true
  }'

Complex Multi-Modal Query:

# Upload and analyze document
curl -X POST "http://localhost:5266/api/documents/upload" \
  -F "file=@document.pdf" \
  -F "description=Technical specification"

# Query with vision analysis
curl -X POST "http://localhost:7002/api/vision/analyze" \
  -F "image=@diagram.png"

🎓 Educational Framework Learning

Semantic Kernel Workflows:

# List available workflows
curl "http://localhost:5076/semantickernel/workflows/list"

# Execute simple workflow
curl -X POST "http://localhost:5076/semantickernel/execute/simple" \
  -H "Content-Type: application/json" \
  -d '{"input": "Explain neural networks"}'

Agent Framework Patterns:

# List agent framework capabilities
curl "http://localhost:8082/agentframework/workflows/list"

# Execute collaborative workflow
curl -X POST "http://localhost:8082/agentframework/execute/collaborative" \
  -H "Content-Type: application/json" \
  -d '{"query": "Research and summarize machine learning trends"}'

🔧 Development & Customization

🎨 Adding New Features

1. Extend RAG Processing:

# In src/python/services/rag_api/rag_core.py
def custom_preprocessing(query: str) -> str:
    # Add your custom query preprocessing
    return enhanced_query

2. Add New .NET Controllers:

// In src/dotnet/DocuMind.Api/DocuMind.Api/Controllers/
[ApiController]
[Route("api/[controller]")]
public class CustomController : ControllerBase
{
    // Your custom endpoints
}

3. Educational Workflow Extensions:

// In DocuMind.Agents.SemanticKernel or AgentFramework
public async Task<string> CustomLearningWorkflow(string input)
{
    // Implement your educational pattern
}

📚 Model Customization

Local Model Updates:

# Change Ollama model
ollama pull llama3.1:8b
# Update configuration in appsettings.json

Azure OpenAI Configuration:

{
  "AzureOpenAI": {
    "Endpoint": "https://your-resource.openai.azure.com/",
    "ApiKey": "your-api-key",
    "DeploymentName": "gpt-4"
  }
}

🚀 Production Deployment

🐳 Docker Production Setup

Create production Docker Compose:

# docker/production.yml
version: '3.8'
services:
  documind-api:
    build: ./src/dotnet
    ports:
      - "80:5266"
    environment:
      - ASPNETCORE_ENVIRONMENT=Production

  rag-api:
    build: ./src/python
    ports:
      - "8000:7001"
    deploy:
      resources:
        reservations:
          devices:
            - driver: nvidia
              count: 1
              capabilities: [gpu]

☁️ Azure Deployment

Infrastructure as Code (Bicep):

# Deploy using Azure Bicep
az deployment group create \
  --resource-group documind-rg \
  --template-file IaC/main.bicep \
  --parameters @IaC/parameters.json

Kubernetes Deployment:

# Apply K8s manifests
kubectl apply -f infra/k8s/

📊 Monitoring & Observability

📈 Performance Metrics

Service Monitoring:

# Check resource usage
docker stats

# Monitor GPU usage
nvidia-smi -l 1

# Check service logs
docker logs qdrant
tail -f logs/rag_api.log

Health Monitoring Script:

# Continuous health monitoring
watch -n 30 './scripts/health-check.sh'

🐛 Debugging

Enable Debug Logging:

// In appsettings.Development.json
{
  "Logging": {
    "LogLevel": {
      "Default": "Debug",
      "Microsoft.SemanticKernel": "Trace"
    }
  }
}

Python Debug Mode:

# Start RAG API with debug logging
cd src/python
uvicorn services.rag_api.app:app --host 0.0.0.0 --port 7001 --log-level debug

🤝 Contributing

📝 Development Guidelines

1. Code Structure:

  • Follow .NET naming conventions for C# code
  • Use Python PEP 8 for Python code
  • Add comprehensive XML documentation for public APIs
  • Include unit tests for new features

2. Testing:

# Run .NET tests
cd src/dotnet/DocuMind.Api
dotnet test

# Run Python tests
cd src/python
pytest tests/

3. Pull Request Process:

  • Fork the repository
  • Create feature branch: git checkout -b feature/amazing-feature
  • Commit changes: git commit -m 'Add amazing feature'
  • Push to branch: git push origin feature/amazing-feature
  • Open Pull Request

🔧 Development Setup

VS Code Extensions (Recommended):

  • C# Dev Kit
  • Python Extension Pack
  • Docker Extension
  • REST Client
  • GitLens

📞 Support & Resources

🆘 Getting Help

Common Solutions:

  1. Port conflicts: Use ./scripts/stop-all.sh then restart
  2. GPU issues: Check CUDA installation with nvidia-smi
  3. Docker issues: Restart Docker daemon: sudo systemctl restart docker
  4. Package conflicts: Recreate conda environment

Documentation Links:

📧 Contact & Community

Reporting Issues:

  • Create GitHub issue with reproduction steps
  • Include system information and logs
  • Use appropriate issue templates

Feature Requests:

  • Describe the use case clearly
  • Provide examples and mockups
  • Consider contributing the implementation

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🙏 Acknowledgments

Technologies & Frameworks:

  • Microsoft Semantic Kernel & Agent Framework teams
  • FastAPI and Pydantic communities
  • Qdrant vector database developers
  • NVIDIA CUDA and PyTorch teams
  • Azure AI Services team

Special Thanks:

  • Open source AI/ML community
  • Contributors and testers
  • Documentation reviewers

📊 Project Status:Fully Operational - All 6 services running with educational framework comparison

🚀 Quick Start: ./scripts/start-all.sh./scripts/health-check.sh → Open http://localhost:5266/swagger cd src/dotnet/DocuMind.Api/DocuMind.Api dotnet run


### Verify Installation

```bash
# Quick health check
./scripts/dev/quick-test.sh

# Comprehensive tests
./scripts/dev/test.sh

# Manual checks
curl http://localhost:6333/        # Qdrant
curl http://localhost:7001/healthz # Python RAG API
curl http://localhost:5266/healthz # .NET API

API Documentation

Swagger/OpenAPI

Interactive Documentation:

Main API Endpoints:

DocuMind API (Port 5266):

  • GET /healthz - Service health check
  • POST /ask - Query processing with intelligent routing
  • POST /ask/complex - Force cloud AI processing
  • POST /ingest - Document ingestion and indexing

Vision API (Port 5266/vision):

  • POST /vision/analyze - Image analysis from URL
  • POST /vision/analyze-file - File upload processing
  • GET /vision/healthz - Vision service health

Python RAG API (Port 7001):

  • GET /healthz - RAG service health
  • POST /search - Vector similarity search
  • POST /ask - RAG query processing

Response Format

All APIs return standardized responses:

{
  "success": true,
  "data": { ... },
  "correlationId": "uuid",
  "timestamp": "2025-10-05T10:30:00Z"
}

Error responses:

{
  "success": false,
  "message": "Error description",
  "correlationId": "uuid",
  "details": { ... }
}

API Usage

Service Endpoints

Basic API Calls

Simple Query:

curl "http://localhost:5266/ask?q=What%20is%20the%20backup%20policy?"

Complex Analysis:

curl -X POST -H "Content-Type: application/json" \
  -d '{"q": "Analyze the security implications of our DR strategy"}' \
  http://localhost:5266/ask

Vision Analysis:

curl -X POST -H "Content-Type: multipart/form-data" \
  -F "image=@/path/to/image.jpg" \
  http://localhost:5266/vision/analyze

Response Format

{
  "route": "local|cloud",
  "answer": "Response text with citations [1][2]",
  "contextMap": [
    {
      "index": 1,
      "doc_id": "document.pdf",
      "chunk_id": "123456789",
      "score": 0.85
    }
  ],
  "timings": {
    "localMs": 1250,
    "cloudMs": 0
  }
}

Configuration

Environment Variables

Create .env file in project root:

# Service URLs
QDRANT_URL=http://127.0.0.1:6333
RAG_API_URL=http://127.0.0.1:7001
DOTNET_API_URL=http://127.0.0.1:5266

# Model Configuration
OLLAMA_MODEL=phi3.5:3.8b-mini-instruct-q4_0
EMBED_MODEL=BAAI/bge-m3
RERANK_MODEL=jinaai/jina-reranker-v1-turbo-en

# Azure AI (Optional)
AZURE_AI_VISION_ENDPOINT=https://your-region.cognitiveservices.azure.com
AZURE_AI_VISION_KEY=your-key
AZURE_OPENAI_ENDPOINT=https://your-resource.openai.azure.com
AZURE_OPENAI_KEY=your-key

# Feature Flags
FeatureFlags__UseRagFirst=true
FeatureFlags__RagRequired=false

Query Routing Configuration

The system automatically routes queries based on complexity:

  • Simple queries → Local RAG (faster, cost-effective)
  • Complex analysis → Cloud AI (higher quality, more expensive)

Routing is determined by:

  • Query length and complexity
  • Domain-specific keywords
  • Intent classification
  • Confidence thresholds

Development

Project Structure

documind-engineering/
├── src/
│   ├── dotnet/                 # .NET 8 API services
│   │   ├── DocuMind.Api/      # Main orchestrator API
│   │   ├── Documind.Vision/   # Azure Vision service
│   │   └── Documind.Contracts/ # Shared contracts
│   └── python/                # Python AI services
│       └── services/rag_api/  # RAG processing API
├── scripts/                   # Automation scripts
│   ├── setup.sh              # Universal setup
│   ├── start.sh              # Service management
│   ├── stop.sh               # Clean shutdown
│   └── dev/                  # Development tools
├── docker/                   # Container configurations
├── data/                     # Document storage
└── docs/                     # Documentation

Development Commands

# Reset development environment
./scripts/dev/reset.sh

# Run integration tests
./scripts/dev/test.sh

# Setup CUDA acceleration
./scripts/dev/setup-cuda.sh

# Format .NET code
cd src/dotnet && dotnet format DocuMind.Api.sln

# Python code formatting
cd src/python && python -m black .

Testing

The project includes comprehensive test suites:

Health Checks:

./scripts/dev/quick-test.sh

Integration Tests:

./scripts/dev/test.sh --full

Performance Tests:

./scripts/dev/test.sh --performance

API Testing: Use the provided HTTP test file:

src/dotnet/DocuMind.Api/DocuMind.Api.http

Troubleshooting

Common Issues

Docker Permission Error:

sudo usermod -aG docker $USER
# Log out and back in

Python Dependencies:

# If conda fails, try pip
pip install -r src/python/requirements.txt

Port Conflicts:

# Check port usage
sudo lsof -i :6333,7001,5266

# Kill conflicting processes
sudo pkill -f "qdrant|uvicorn|dotnet"

GPU Not Detected:

# Verify CUDA installation
nvidia-smi

# Reinstall CUDA PyTorch
./scripts/dev/setup-cuda.sh

Models Not Downloading:

# Manual model download
python -c "from sentence_transformers import SentenceTransformer; SentenceTransformer('BAAI/bge-m3')"
ollama pull phi3.5:3.8b-mini-instruct-q4_0

Logs and Monitoring

Service Logs:

# Background service logs
tail -f .run/logs/rag.log
tail -f .run/logs/dotnet.log

# Docker logs
docker logs qdrant

Health Monitoring:

# Continuous health check
watch -n 5 ./scripts/dev/quick-test.sh

Technical Details

Enhanced Query Orchestration

QueryAnalyzer: Classifies queries by complexity, domain, and intent

  • Simple questions → Local RAG processing
  • Complex analysis → Cloud AI escalation
  • Multi-dimensional analysis (technical depth, domain specificity, reasoning requirements)

ConfidenceScorer: Quality assessment for response validation

  • Citation quality verification
  • Context relevance scoring
  • Hallucination detection
  • Automatic escalation for low-confidence responses

Azure AI Vision Integration

Complete OCR Pipeline:

  • Azure Computer Vision API 2023-10-01
  • Multi-format support (images, PDFs)
  • Text extraction with confidence scores
  • Caption generation and tag classification
  • Bounding box coordinates for layout analysis

Key Features:

  • File upload processing (25MB limit)
  • URL-based image analysis
  • Language detection and specification
  • Structured response with correlation tracking

Vector Database Architecture

Qdrant Configuration:

  • 1024-dimensional embeddings (BAAI/bge-m3)
  • Cosine similarity with persistent storage
  • UUID-based deterministic document IDs
  • Auto-collection creation with retry logic

RAG Pipeline:

  1. Document chunking and embedding
  2. Vector search with configurable topk
  3. Jina reranker for relevance scoring
  4. Context assembly with citation tracking

Performance

Benchmarks

  • Simple queries: 800-1,700ms (local RAG)
  • Complex analysis: 4,000-5,000ms (cloud AI)
  • Vector search: 50-100ms typical
  • GPU acceleration: 10-100x faster inference

Optimization

GPU Acceleration:

  • Requires NVIDIA RTX 20xx+ with 8GB+ VRAM
  • Automatic detection and configuration
  • Fallback to CPU if GPU unavailable

Memory Usage:

  • Qdrant: ~500MB baseline
  • Python services: ~2-4GB with models loaded
  • .NET API: ~100-200MB

Security

API Security

  • HTTPS support (configure in production)
  • Rate limiting (implement as needed)
  • Input validation and sanitization
  • No sensitive data logging

Data Privacy

  • Local processing by default
  • Optional cloud escalation
  • Document data stays on-premises
  • Configurable data retention

Production Deployment

Requirements

  • CPU: 4+ cores recommended
  • RAM: 16GB minimum, 32GB recommended
  • Storage: SSD recommended, 50GB+ available
  • Network: Stable internet for cloud AI features

Configuration

  1. Environment Setup:

    export NODE_ENV=production
    export FeatureFlags__UseRagFirst=true
  2. SSL/TLS: Configure HTTPS certificates for APIs

  3. Monitoring: Implement logging and health check endpoints

  4. Backup: Regular backup of Qdrant data and documents

Scaling

  • Horizontal: Multiple API instances behind load balancer
  • Vertical: Increase CPU/RAM for better performance
  • GPU: Multiple GPUs for parallel processing
  • Cloud: Azure AI Foundry for unlimited scaling

License

[Add your license information here]

Support

For issues and questions:

  • Create GitHub issues for bugs
  • Check troubleshooting section first
  • Review logs for error details

About

Hybrid AI orchestration stack combining local LLMs (Ollama), vector search (Qdrant), and Azure AI Foundry for scalable RAG, Agentic AI, and Vision. Built with .NET 8 and Python.

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