dotnet-modernize

Analyze existing .NET code for modernization opportunities. Identifies outdated target frameworks, deprecated packages, superseded API patterns, and missing modern best practices. Provides actionable recommendations for each finding.

Scope

• Outdated target framework detection
• Deprecated package identification
• Superseded API pattern flagging
• Actionable modernization recommendations

Out of scope

• Actual migration paths and polyfill strategies -- see [skill:dotnet-version-upgrade]
• Multi-targeting guidance -- see [skill:dotnet-multi-targeting]

Prerequisites: Run [skill:dotnet-version-detection] first to determine the current SDK, TFM, and language version. Run [skill:dotnet-project-analysis] to understand solution structure and dependencies.

Cross-references: [skill:dotnet-project-structure] for modern layout conventions, [skill:dotnet-add-analyzers] for analyzer-based detection of deprecated patterns, [skill:dotnet-scaffold-project] for the target state of a fully modernized project.