Full-Stack Developer's Coding Assistant: Multi-Server MCP Integration

1. Introduction
This tutorial demonstrates how full-stack developers can leverage multiple MCP servers to create a comprehensive development workflow. By integrating GitHub, Context7, MongoDB, Supabase, Sequential Thinking, and DuckDuckGo Search servers, developers can streamline documentation access, manage databases, implement authentication, debug complex issues systematically, and find solutions efficiently.

**Key Benefits:**

- Real-time access to latest framework documentation via Context7
- Direct database querying and analytics from MongoDB
- Seamless authentication and real-time features with Supabase
- Systematic debugging approach using Sequential Thinking
- Quick solution discovery through DuckDuckGo Search
- Integrated development workflow across multiple tools

**Target Users:**

- Full-stack developers
- SaaS application builders
- DevOps engineers
- Technical leads
- Anyone building modern web applications
2. System Prompt
You are an advanced AI coding assistant specializing in full-stack development with expertise in modern web technologies, databases, and cloud services. You have integrated access to multiple development tools and resources through MCP servers.

Your capabilities include:

**Documentation & Learning:**

- Fetching latest framework documentation from Context7
- Accessing up-to-date API references and guides
- Finding code examples and best practices
- Tracking framework updates and changes

**Database Management:**

- Querying MongoDB for analytics and user data
- Analyzing database performance and logs
- Creating and optimizing database queries
- Managing data schemas and migrations

**Authentication & Real-time Features:**

- Implementing Supabase authentication flows
- Setting up real-time subscriptions
- Managing user sessions and permissions
- Configuring row-level security

**Debugging & Problem Solving:**

- Systematic debugging using Sequential Thinking
- Breaking down complex issues into manageable steps
- Creating reproducible test cases
- Identifying root causes of bugs

**Solution Discovery:**

- Searching for error solutions via DuckDuckGo
- Finding community discussions and fixes
- Discovering relevant Stack Overflow answers
- Locating GitHub issues and resolutions

**Code Management:**

- Reviewing code repositories on GitHub
- Tracking issues and pull requests
- Managing version control workflows
- Collaborating on code reviews

When assisting with development, always:

- Prioritize secure and efficient code practices
- Use latest stable versions of frameworks
- Follow established design patterns
- Consider performance implications
- Maintain clean, readable code
- Provide comprehensive error handling
3. MCP Servers in this Agent Flow
1. GitHub MCP Server
2. Context7 MCP Server
3. MongoDB MCP Server
4. Supabase MCP Server
5. Sequential Thinking MCP Server
6. DuckDuckGo Search MCP Server

4. MCP Server Setup Prompt

Prerequisites

  • Claude AI access (Claude 3.5 Sonnet or newer recommended)
  • Node.js 18+ installed
  • Database connections and API keys for services
  • Git installed and configured
  • Basic understanding of full-stack development

Environment Preparation

  1. API Keys and Accounts
    • GitHub personal access token from https://github.com/settings/tokens
    • Context7 API access (if required)
    • MongoDB connection string
    • Supabase project URL and API keys
    • No API key needed for DuckDuckGo
  2. MCP Server Installation
# Install all required MCP servers
    npm install -g @github/mcp-server
    npm install -g @context7/mcp-server
    npm install -g @mongodb/mcp-server
    npm install -g @supabase/mcp-server
    npm install -g @sequential-thinking/mcp-server
    npm install -g @duckduckgo/mcp-server

Claude Configuration

Add the following to your Claude MCP configuration:

{
  "servers": {
    "github": {
      "command": "npx",
      "args": ["@github/mcp-server"],
      "env": {
        "GITHUB_ACCESS_TOKEN": "your_github_token"
      }
    },
    "context7": {
      "command": "npx",
      "args": ["@context7/mcp-server"],
      "env": {
        "CONTEXT7_API_KEY": "your_context7_key_if_required"
      }
    },
    "mongodb": {
      "command": "npx",
      "args": ["@mongodb/mcp-server"],
      "env": {
        "MONGODB_URI": "mongodb://username:password@host:port/database"
      }
    },
    "supabase": {
      "command": "npx",
      "args": ["@supabase/mcp-server"],
      "env": {
        "SUPABASE_URL": "<https://your-project.supabase.co>",
        "SUPABASE_SERVICE_KEY": "your_service_key"
      }
    },
    "sequential-thinking": {
      "command": "npx",
      "args": ["@sequential-thinking/mcp-server"],
      "env": {}
    },
    "duckduckgo": {
      "command": "npx",
      "args": ["@duckduckgo/mcp-server"],
      "env": {}
    }
  }
}

5. Step-by-step User Guide

Step 1: Initial Setup and Testing

  1. Verify All Servers Are Connected

    "Please verify that all MCP servers are connected: GitHub, Context7, MongoDB, Supabase, Sequential Thinking, and DuckDuckGo."

  2. Test Each Server Individually

    • GitHub: “Check my recent repositories and their status”
    • Context7: “Fetch the latest React hooks documentation”
    • MongoDB: “Connect to my database and show collections”
    • Supabase: “List my Supabase project tables”
    • Sequential Thinking: “Help me plan a new feature systematically”
    • DuckDuckGo: “Search for ‘Next.js best practices 2024’”

Step 2: Documentation and Learning

Fetch Framework Documentation:

"Use Context7 to get the latest Next.js documentation on:
- App Router
- Server Components
- Data fetching methods
- Caching strategies"

Compare Framework Versions:

"Get documentation for both Next.js 13 and 14, highlighting the key differences in:
- Routing system
- Data fetching
- Performance optimizations"

Find Code Examples:

"Search Context7 for React examples of:
- Custom hooks with TypeScript
- Context API with reducers
- Optimistic UI updates
- Error boundaries"

Step 3: Database Operations

MongoDB Analytics Queries:

"Query my MongoDB 'users' collection to:
1. Count active users in the last 30 days
2. Get user growth by month
3. Find top 10 users by activity
4. Calculate average session duration"

Database Performance Analysis:

"Analyze MongoDB performance:
1. Check slow query logs
2. Review index usage
3. Find collections over 1GB
4. Identify missing indexes"

Error Log Investigation:

"Search MongoDB logs for:
- Connection errors in the last hour
- Failed authentication attempts
- Timeout errors
- Query execution times over 1000ms"

Step 4: Supabase Integration

Authentication Setup:

"Help me implement Supabase authentication:
1. Set up email/password auth
2. Add Google OAuth provider
3. Configure JWT expiration
4. Implement password reset flow"

Real-time Features:

"Create Supabase real-time subscriptions for:
- New user registrations
- Comment updates on posts
- Live collaboration features
- Notification system"

Database Security:

"Configure Supabase RLS policies:
1. Users can only read their own profiles
2. Authenticated users can create posts
3. Post authors can edit/delete their posts
4. Admins have full access"

Step 5: Debugging Complex Issues

Hydration Error Example:

"I'm getting a hydration mismatch error in my Next.js app. Please:
1. Use Context7 to get the latest Next.js hydration docs
2. Search DuckDuckGo for similar issues and solutions
3. Check my MongoDB logs for any related API errors in the last hour
4. Use Sequential Thinking to debug this systematically"

Sequential Debugging Process:

"Using Sequential Thinking, help me debug this issue:
1. Identify all possible causes of hydration mismatches
2. Create a checklist to verify each cause
3. Provide code snippets to test each scenario
4. Suggest debugging tools and techniques
5. Create a step-by-step resolution plan"

Step 6: Solution Discovery

Error-Specific Searches:

"Search DuckDuckGo for:
- 'TypeError: Cannot read property of undefined React'
- Include Stack Overflow results
- Filter for solutions from 2023-2024
- Focus on Next.js specific contexts"

Best Practices Research:

"Research current best practices for:
- React Server Components performance
- MongoDB connection pooling in serverless
- Supabase real-time scaling
- Next.js deployment strategies"

Step 7: Integrated Development Workflow

Feature Development Flow:

"Help me build a user dashboard feature:
1. Search GitHub for similar dashboard implementations
2. Get Context7 docs for required React components
3. Design MongoDB schema for dashboard data
4. Set up Supabase real-time updates
5. Create step-by-step implementation plan"

Performance Optimization:

"Optimize my application performance:
1. Analyze MongoDB slow queries
2. Search for Next.js optimization techniques
3. Review Supabase query patterns
4. Create optimization checklist using Sequential Thinking
5. Find benchmarking tools via DuckDuckGo"

Advanced Workflows

Full-Stack Feature Implementation:

"Implement a commenting system:
1. Design database schema in MongoDB
2. Create Supabase tables and RLS policies
3. Get React component patterns from Context7
4. Search for real-time comment implementations
5. Plan architecture using Sequential Thinking"

Migration Planning:

"Plan migration from MongoDB to Supabase:
1. Analyze current MongoDB schema
2. Map to Supabase PostgreSQL structure
3. Search for migration tools and scripts
4. Create step-by-step migration plan
5. Find potential issues and solutions"

Security Audit:

"Perform security audit:
1. Check GitHub for exposed secrets
2. Review MongoDB access controls
3. Audit Supabase RLS policies
4. Search for common vulnerabilities
5. Create security checklist"

Debugging Workflows

API Debugging:

"Debug API endpoint issues:
1. Check MongoDB connection and queries
2. Review Supabase function logs
3. Search for similar API errors
4. Trace request flow systematically
5. Identify bottlenecks and failures"

State Management Debugging:

"Debug React state issues:
1. Get Context7 docs on state management
2. Search for common state bugs
3. Analyze component lifecycle
4. Create state flow diagram
5. Implement debugging tools"

Development Best Practices

Code Review Workflow:

"Review my pull request:
1. Check GitHub PR for code changes
2. Verify against documentation standards
3. Search for potential issues in changes
4. Analyze performance implications
5. Suggest improvements systematically"

Testing Strategy:

"Create comprehensive testing strategy:
1. Search for testing best practices
2. Get testing framework documentation
3. Design test database structure
4. Plan integration test scenarios
5. Create testing checklist"

Troubleshooting Common Issues

Connection Problems:

  • Verify all API keys and connection strings
  • Check network connectivity
  • Review service status pages
  • Test connections individually

Performance Issues:

  • Monitor database query times
  • Check API response times
  • Review real-time subscription efficiency
  • Optimize bundle sizes

Authentication Errors:

  • Verify Supabase JWT configuration
  • Check token expiration settings
  • Review CORS settings
  • Test auth flows systematically

Documentation Sync:

  • Ensure Context7 has latest versions
  • Cross-reference with official docs
  • Check for framework updates
  • Verify version compatibility

Best Practices

  1. Daily Development Routine:
    • Morning: Check GitHub notifications and PRs
    • Review overnight error logs in MongoDB
    • Update dependencies documentation
    • Plan day’s tasks systematically
  2. Debugging Protocol:
    • Always check logs first
    • Search for known issues
    • Isolate problems systematically
    • Document solutions found
  3. Performance Monitoring:
    • Regular database query analysis
    • API endpoint benchmarking
    • Real-time performance tracking
    • User experience metrics
  4. Security Practices:
    • Regular security audits
    • Keep dependencies updated
    • Monitor access patterns
    • Review authentication logs

Example Development Scenarios

Rapid Prototyping:

"Help me quickly prototype a todo app:
1. Get React starter template from Context7
2. Set up Supabase authentication
3. Create MongoDB schema for todos
4. Find UI component examples
5. Generate working prototype code"

Production Debugging:

"Production error: '500 Internal Server Error':
1. Check MongoDB connection status
2. Review Supabase function logs
3. Search for similar production errors
4. Create incident response plan
5. Implement monitoring improvements"

Feature Enhancement:

"Add real-time collaboration to document editor:
1. Research collaboration algorithms
2. Get WebSocket documentation
3. Design conflict resolution system
4. Implement with Supabase real-time
5. Test with multiple users"