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crap-score

100 / 100 · Low risk

Fine to try.

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

Calculates CRAP (Change Risk Anti-Patterns) for a named .NET method, class, or file. USE FOR: explicit CRAP calculation or coverage-and-complexity risk within that named target, including which tests to prioritize. DO NOT USE FOR: project-wide coverage/CRAP, plateaus, or project-wide blockers/priorities (coverage-analysis); behavioral/pseudo-mutation gaps (test-gap-analysis); writing tests; test runs without CRAP context.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

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

if [ -e ~/.agents/skills/'crap-score' ] || [ -L ~/.agents/skills/'crap-score' ]; then echo 'A skill folder named crap-score 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 "$d" checkout --quiet '8dd78e1347417e400c3ef8d786059a8bb346162f' -- '.agents/skills/crap-score' && mkdir -p ~/.agents/skills && cp -R "$d"/'.agents/skills/crap-score' ~/.agents/skills/'crap-score' && 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/'crap-score' ~/.claude/skills/'crap-score' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

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Score history

Also found in

Identical copies of this skill exist at:

• stanfish06/skillquarium/skills/crap-score