docs: Add MCP servers documentation for Copilot agent development

[Copilot]

Documents MCP (Model Context Protocol) servers available for AI-assisted development, specifically the GitHub MCP Server which is already active in Copilot sessions.

Changes

• docs/mcp-servers.md - Comprehensive guide covering:

  • GitHub MCP Server capabilities (repo management, issue/PR automation, CI/CD intelligence, code analysis)
  • Installation: remote (OAuth/PAT) and local (Docker) configurations
  • Required token scopes: repo, read:org, read:packages
  • Toolset configuration (context, repos, issues, pull_requests, actions, code_security, etc.)
  • Practical use cases for this repository

• README.md - Added Development section linking to MCP documentation

• CONTRIBUTING.md - Added Copilot Agent Development section

Configuration Example

Remote server setup in .vscode/mcp.json:

{
  "servers": {
    "github": {
      "type": "http",
      "url": "https://api.githubcopilot.com/mcp/"
    }
  }
}

The GitHub MCP Server tools are prefixed with github-mcp-server- (e.g., github-mcp-server-list_issues, github-mcp-server-get_workflow_run) and provide programmatic access to GitHub APIs through natural language.

Original prompt

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This section details on the original issue you should resolve

<issue_title>MCP server check</issue_title>
<issue_description>Take a look at this repo. Are there any MCP servers available through GitHub we should be using for copilot agent development?</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes MCP server check #44

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.