Add MCP (Model Context Protocol) configuration for GitHub API and .NET server integration

[Copilot]

This PR adds comprehensive MCP (Model Context Protocol) configuration support to the RepoHelper PowerShell module, enabling seamless integration with GitHub API and .NET MCP servers running in Docker containers.

🚀 Features Added

Core Configuration (mcp-config.json)

• GitHub Server: Configured with @modelcontextprotocol/server-github via npx
• .NET MCP Server: ASP.NET Core 8.0 server running in Docker container
• Token Authentication: Secure GitHub Personal Access Token handling
• Environment Variables: Proper token expansion and environment setup
• Logging & Defaults: Configurable timeout, retry logic, and structured logging

PowerShell Functions (public/mcp-config.ps1)

# Set up GitHub token securely
$token = Read-Host "GitHub Token" -AsSecureString
Set-MCPConfiguration -GitHubToken $token

# Test configuration
Test-MCPConfiguration

# Start MCP servers
Start-MCPServers -ServerName "github"

Security & Best Practices

• SecureString: GitHub tokens handled securely without plain text exposure
• Environment Variables: Process-scoped token storage (not persisted)
• Validation: Comprehensive configuration and dependency checking
• Error Handling: Informative error messages and proper exception handling

📋 Files Added

File	Purpose
mcp-config.json	Main MCP server configuration with GitHub and .NET definitions
public/mcp-config.ps1	PowerShell helper functions for MCP management
MCP-README.md	Complete setup and usage documentation
Test/public/mcp-config.test.ps1	Comprehensive test suite (9 tests)
examples/mcp-usage-example.ps1	Practical usage demonstration
.gitignore	Exclude logs and build artifacts

🛠️ Configuration Structure

The MCP configuration supports:

{
  "mcpServers": {
    "github": {
      "command": "npx",
      "args": ["@modelcontextprotocol/server-github"],
      "env": {
        "GITHUB_PERSONAL_ACCESS_TOKEN": "${GITHUB_PERSONAL_ACCESS_TOKEN}"
      }
    },
    "dotnet-mcp": {
      "command": "docker",
      "args": ["run", "--rm", "-p", "3001:3001", "..."]
    }
  }
}

🧪 Testing

All tests pass successfully:

• ✅ JSON configuration validation
• ✅ PowerShell function operations
• ✅ Environment variable handling
• ✅ SecureString token management
• ✅ Docker dependency checking

Tests Passed: 9, Failed: 0, Skipped: 0

📚 Usage Example

# Import RepoHelper module
Import-Module ./RepoHelper.psd1

# Configure GitHub token
$token = Read-Host "Enter GitHub Token" -AsSecureString
Set-MCPConfiguration -GitHubToken $token

# Test setup
if (Test-MCPConfiguration) {
    Write-Host "MCP configuration is valid!"
    Start-MCPServers
}

🔧 Requirements

• Node.js: For GitHub MCP server (@modelcontextprotocol/server-github)
• Docker: For .NET MCP server container
• PowerShell 7+: For RepoHelper module
• GitHub Personal Access Token: With repo, read:org, read:user permissions

🎯 Integration

The MCP configuration integrates seamlessly with RepoHelper's existing GitHub API functionality, providing:

• Enhanced repository management through MCP protocol
• Standardized server communication patterns
• Extensible architecture for additional MCP servers
• Secure token management consistent with existing patterns

This implementation follows PowerShell best practices and maintains compatibility with the existing RepoHelper module structure.

Warning

Firewall rules blocked me from connecting to one or more addresses

I tried to connect to the following addresses, but was blocked by firewall rules:

• www.powershellgallery.com
  • Triggering command: pwsh -c ./test.ps1 (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to my firewall allow list

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