Add .NET Migration Assistant Tools

Description

Help users migrate from .NET Framework to modern .NET with automated analysis and guidance.

Motivation

Many teams still need to migrate:

• .NET Framework → .NET 9+
• Older .NET versions → Latest
• Detect breaking changes
• API compatibility checking

Proposed Tools

New MCP Tools

• dotnet_migration_analyze

  • Analyze .NET Framework projects
  • Identify blocking issues
  • Estimate effort

• dotnet_migration_suggest

  • Suggest migration path
  • Breaking changes list
  • Modern alternatives for deprecated APIs

• dotnet_migration_validate

  • Check API compatibility
  • Framework feature availability
  • Third-party package compatibility

Implementation Notes

• Use .NET Upgrade Assistant APIs
• Analyze code with Roslyn
• Check API compatibility
• Provide actionable guidance

Success Criteria

• Migration analysis
• Breaking change detection
• Alternative suggestions
• Compatibility checking
• Tests
• Documentation

Related

• Part of: Phase 3 roadmap
• Experimental feature
• May leverage existing tools

No files, tests, or entry points are named. Start by locating the repository's existing MCP tools and .NET SDK integration, then review the proposed .NET Upgrade Assistant APIs, Roslyn analysis, and API compatibility checks. Done means the listed migration analysis, suggestions, validation, tests, and documentation are implemented.