Cross Reference Claim

Quality score: 70/100 · Category: General · Sub-category: general-misc

Finds and cites a primary source for each substacker draft claim — original arXiv paper, official documentation, RFC, canonical textbook. Source hierarchy enforced: primary > secondary > tertiary > not-a-source. Records URL, title, passage/result that settles the claim. Use after classify-claim; runs once per claim unless classification is simplified-correct with high confidence on standard undergrad material. Trigger keywords: cross-reference, primary source, citation, arXiv, RFC, paper lookup, source hierarchy.

What this skill does

Cross Reference Claim is a production-ready Claude Code skill (quality score 70/100) in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/cross-reference-claim/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Cross Reference Claim 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 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

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

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

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

More General skills

Browse all General skills in the ClaudSkills registry, or explore these top-rated 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