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Migrate to Nullable References

Skill

Turn on C# nullable reference types and work through every CS86xx warning properly.

by .NETCoding & Dev Tools Listed Feb 3, 2026

Clone or download it from github.com, then drop the folder into ~/.claude/skills/ (Claude Code) or your agent's skills directory.

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About Migrate to Nullable References

From the official .NET team skills pack.

Walks the agent through adopting nullable reference types in an existing C# project, either file by file or across the whole solution. It runs a readiness scanner, annotates APIs, fixes warnings like CS8602 and CS8618 instead of suppressing them, and cleans up stray null-forgiving operators. Not meant for C# 7.3 or older projects.

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