ClaudSkills / Science & Research / research-methods

Authority Verification

Q: What is a Claude Code skill and how does the Authority Verification skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Authority Verification is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Science & Research · Sub-category: research-methods · Last updated: 2026-06-06

Verifies legal citations and retrieves source material using the case.dev Legal Research API and CLI. Use when validating a citation, confirming a case exists, pulling source text, finding related authorities, extracting citations from a brief or opinion, or building a filing-ready authority check without branded citator terminology.

About this skill (catalog notes)

Authority Verification is published as a SKILL.md file in this catalog. The SKILL.md is on the shorter side at about 425 words.

License: Apache-2.0
Original author: CaseMark
Indexed lastmod: 2026-06-06
Catalog position: Science & Research · research-methods
Indexed related skills: 10

How Authority Verification fits the catalog

Authority Verification sits in the Science & Research category under the research-methods sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Use case.dev legal research endpoints to verify citations, retrieve source text, and expand to related authorities. Keep the language generic: "verified citation," "candidate authority," "related authority," and "manual treatment review."

What this skill does

Authority Verification is a community-contributed Claude Code skill in the research-methods sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/authority-verification/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when validating a citation, confirming a case exists, pulling source text, finding related authorities, extracting citations from a brief or opinion, or building a filing-ready authority check without branded citator terminology.

Who uses this skill

The Authority Verification Claude Code skill is built for researchers, data scientists, academics, and analysts working with complex data and scientific literature. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 93,000+ 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/authority-verification
curl -L https://claudskills.com/skills/authority-verification/SKILL.md \
  -o ~/.claude/skills/authority-verification/SKILL.md

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

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

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

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

Frequently asked questions

How do I install the Authority Verification Claude Code skill?

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

What does the Authority Verification skill do?

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.

When should I use the Authority Verification skill?

Use Authority Verification when your Claude Code task falls under the Science & Research category — specifically in the research methods area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Authority Verification" or describe the task and let Claude pick). Browse related skills at /category/science/.

What is a Claude Code skill and how does the Authority Verification skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Authority Verification is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://github.com/ThomasMoreAI/legal-skills-open/blob/HEAD/general/general/skills/authority-verification/SKILL.md
License: Apache-2.0
Author: CaseMark

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

CaseMark. (2026). Authority Verification [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/authority-verification/

BibTeX

@misc{authority-verification-2026,
  author    = {CaseMark},
  title     = {Authority Verification [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/authority-verification/}
}

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