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Citation Verification Pattern

Category: Science & Research  ·  Sub-category: research-methods  ·  Last updated:
type:review
4-layer response shape for MCP tools that emit claims linked to sources — source-exists, claim-derivable, no-over-extension, no-hallucinated-cite. Design pattern for research / synthesis / doc-generation / claim-emitting MCP servers. Use when: designing an MCP tool that returns sourced facts, summaries, citations, retrieved snippets, or any output where the user will trust 'because the source says so'; when readers will follow a link or open a file based on the tool's claim; when reviewing an existing tool whose responses include URLs, file paths, or memory IDs as evidence. Do not use for: pure retrieval tools that return raw matches without claims, structural tools (list, count, enumerate), or tools whose output never asserts truth about the source content.

What this skill does

Citation Verification Pattern 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/citation-verification-pattern/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when: designing an MCP tool that returns sourced facts, summaries, citations, retrieved snippets, or any output where the user will trust 'because the source says so'; when readers will follow a link or open a file based on the tool's claim; when reviewing an existing tool whose responses include URLs, file paths, or memory IDs as evidence. Do not use for: pure retrieval tools that return raw matches without claims, structural tools (list, count, enumerate), or tools whose output never asserts truth about the source content.

Who uses this skill

The Citation Verification Pattern 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 70,000+ 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/citation-verification-pattern
curl -L https://claudskills.com/skills/citation-verification-pattern/SKILL.md \
  -o ~/.claude/skills/citation-verification-pattern/SKILL.md

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

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

Pro

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Cite this skill

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

APA
ClaudSkills. (2026). Citation Verification Pattern [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/citation-verification-pattern/
BibTeX
@misc{citation-verification-pattern-2026,
  author    = {ClaudSkills},
  title     = {Citation Verification Pattern [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/citation-verification-pattern/}
}

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