migrating-csharp-nullable-references Skill

Source

• Creator: microsoft
• Repository: microsoft/upgrade-agent-plugins
• Skill file: plugins/upgrade-agent/extenders/upgrade-dotnet/upgrade/skills/lazy/common/migrating-csharp-nullable-references/SKILL.md

What it does

Enable nullable reference types in a C project and systematically resolve all warnings. Use when adopting NRTs in existing codebases, performing file-by-file or project-wide nullable migration, fixing CS8602/CS8618/CS86xx warnings, annotating APIs for nullability, cleaning up null-forgiving operators, or upgrading depe

Skill instructions

Nullable Reference Migration Enable C nullable reference types (NRTs) in an existing codebase and systematically resolve all warnings. The outcome is a project (or solution) with <Nullableenable</Nullable, zero nullable warnings, and accurately annotated public API surfaces — giving both the compiler and consumers reliable nullability information. When to Use - Enabling nullable reference types in an existing C project or solution - Systematically resolving CS86xx nullable warnings after enabling the feature - Annotating a library's public API surface so consumers get accurate nullability information - Upgrading a dependency that has added nullable annotations and new warnings appear - Analyzing suppressions in a code base that has already enabled NRTs to determine whether they can be removed When Not to Use - The project already has <Nullableenable</Nullable and zero warnings — the migration is done unless the user wants to re-examine suppressions with a view to removing unnecessary o