How do I install the Challenge That Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/challenge-that/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 / General / general-misc

Challenge That

Category: General · Sub-category: general-misc · Last updated: 2026-05-21

lang:ruby

Force critical evaluation of any proposal, decision, or approach from 5 adversarial perspectives. Use when you've just agreed to something, accepted a plan, or want to stress-test an idea before committing. Triggers on: 'challenge this', 'stress test', 'devil's advocate', 'what could go wrong', 'poke holes', 'is this a good idea', 'evaluate this critically'.

From the source SKILL.md

Force critical evaluation by analyzing from multiple adversarial perspectives.

What this skill does

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

When to invoke it: Use when you've just agreed to something, accepted a plan, or want to stress-test an idea before committing. Triggers on: 'challenge this', 'stress test', 'devil's advocate', 'what could go wrong', 'poke holes', 'is this a good idea', 'evaluate this critically'.

Who uses this skill

The Challenge That Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. 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/challenge-that
curl -L https://claudskills.com/skills/challenge-that/SKILL.md \
  -o ~/.claude/skills/challenge-that/SKILL.md

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

Skills live at ~/.claude/skills/challenge-that/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\challenge-that\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/challenge-that/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

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel

Challenge That

From the source SKILL.md

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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