How do I install the Testrunner Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/testrunner/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

ClaudSkills / Engineering / engineering-misc

Testrunner

Category: Engineering · Sub-category: engineering-misc · Last updated: 2026-05-21

lang:csharp

Handle flaky tests, crashing tests, hanging tests, out of memory tests, stack overflow tests, test isolation, test suite stability issues in .NET projects. Use when dotnet test hangs, crashes, produces OOM or stack overflow errors, or when the user has an unstable/flaky test suite. Do NOT use for normal test runs — only when standard dotnet test is insufficient.

What this skill does

Testrunner is a community-contributed Claude Code skill in the engineering-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/testrunner/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when dotnet test hangs, crashes, produces OOM or stack overflow errors, or when the user has an unstable/flaky test suite. Do NOT use for normal test runs — only when standard dotnet test is insufficient.

Who uses this skill

The Testrunner Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 69,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/testrunner
curl -L https://claudskills.com/skills/testrunner/SKILL.md \
  -o ~/.claude/skills/testrunner/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/testrunner/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/testrunner/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\testrunner\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Attribution & license

Source: https://github.com/onfire7777/universal-ai-skills-library/blob/HEAD/skills/testrunner/SKILL.md
License: MIT
Author: onfire7777

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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Testrunner

What this skill does

Who uses this skill

How to install

Manual install (2 steps)

One-click install via the desktop app

Attribution & license

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