Individual skill

csharp-refactoring

Safely refactors C#/.NET code without changing behavior. USE FOR any request to refactor, rename, move, extract, inline, merge, consolidate, deduplicate, split, or modernize C# code, including partial/generated declarations, wrappers, public APIs, serialization/reflection/configuration names, friend assemblies, conditional compilation, and multi-targeted projects. Also use when a request calls a feature, bug fix, package/framework upgrade, or public nullability change a refactor and the behavior-changing part must be separated or declined. DO NOT USE FOR ordinary feature or bug fixes not presented as refactoring; standalone upgrades after reclassification (use dotnet-upgrade); adding tests; or formatting-only work.

plugins/dotnet/skills/csharp-refactoring/SKILL.md

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Last checked: Nov 4, 2026

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Repository stars (not skill ratings): 5,856
Repository last updated: Nov 8, 2026
License: MIT

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# C# Refactoring (behavior-preserving)

A refactor changes **structure**, never observable **behavior**. Do the edit with binding-aware tools,
then confirm behavior held with a build + the relevant tests. Keep the effort proportional to the change:
a one-line local rename does not need the ceremony a public multi-targeted change does.

## Mandatory gate: classify before validation or editing

Read only enough repository context to classify **each requested operation**. Do this before restoring,
building, or making an edit. Classification precedence is:

- If the request explicitly asks for at least one separable behavior-preserving operation, complete
  that structural work and defer only the behavior-changing or contract-changing operations. Do not
  invent or infer structural work to avoid the stop response.