How do I install the Double Cross Check Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/double-cross-check/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 / research-misc

Double Cross Check

FeaturedCategory: General · Sub-category: research-misc · Last updated: 2026-05-10

Ověř výsledek nezávislým modelem od jiného providera — Codex (OpenAI), Gemini (Google) nebo Claude Code (Anthropic). Použij na fráze: 'získej druhý názor', 'ověř z jiného modelu', 'zkontroluj přes Codex/Gemini/Claude Code', 'porovnej názory modelů', 'cross-check', 'dvojitá kontrola', 'fact-check', 'ověř fakta'. Vhodné pro ověřování faktografických dat a investigativní rešerše, kontrolu architektonických rozhodnutí, bezpečnostní audit kódu, porovnávání implementačních přístupů a multi-model konsenzus u rozhodnutí s vyššími stakes. Pro běžný dotaz, kde stačí jedna odpověď, skill nepoužívej — je drahý a pomalý. Používej cíleně.

From the source SKILL.md

Získej nezávislý pohled od OpenAI (přes Codex CLI), Google (přes Gemini CLI) nebo Anthropic (přes Claude Code CLI) na výsledek, který sám/sama produkuješ. Smysl: chytit chyby, na které jsi slepý/á — ne potvrdit si vlastní odpověď.

What this skill does

Double Cross Check is a community-contributed Claude Code skill in the research-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/double-cross-check/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Double Cross Check skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It is part of the open ClaudSkills registry, a community-curated catalog of 62,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

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

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

Skills live at ~/.claude/skills/double-cross-check/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\double-cross-check\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

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Browse all General skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all General skills → Top 100 skills

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

Part of Acreator Store — Adam Lankamer's AI tools: GifPerfect · AspectPerfect · SlomoPerfect · Ucaption · UTagger · AutoXPoster · TestYourSkills

Double Cross Check

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

More General skills

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