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csharp-refactoring

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By microsoft/testfx (GitHub) · coding · 1,059 stars · scanned at commit 8dd78e1

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, even a small extract, inline, or rename, or merging near-identical types; green builds miss drift in #if branches, generated partials, and reflection/config names. When a changed member is visible outside the assembly (PublicAPI.*.txt, InternalsVisibleTo, shipped package), also invoke dotnet-breaking-changes; local…

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'csharp-refactoring' ] || [ -L ~/.agents/skills/'csharp-refactoring' ]; then echo 'A skill folder named csharp-refactoring already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/microsoft/testfx' "$d" && git -C "$d" checkout --quiet '8dd78e1347417e400c3ef8d786059a8bb346162f' -- '.agents/skills/csharp-refactoring' && mkdir -p ~/.agents/skills && cp -R "$d"/'.agents/skills/csharp-refactoring' ~/.agents/skills/'csharp-refactoring' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'csharp-refactoring' ~/.claude/skills/'csharp-refactoring' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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