proposition-checking

Verify legal and factual propositions against cited authorities and record sources.

46|25|Updated May 7, 2026
One-click install
npx skills add https://github.com/LegalQuants/lq-skills --skill proposition-checking
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: proposition-checking
Source: https://github.com/LegalQuants/lq-skills/tree/main/skills/proposition-checking
Command: npx skills add https://github.com/LegalQuants/lq-skills --skill proposition-checking

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

It prevents legal and factual errors by checking whether each stated proposition is actually supported (or contradicted) by the cited case, statute, or record material, rather than assuming “the cite is enough.”

Core Features & Use Cases

  • Proposition-to-source mapping: Extract propositions paragraph-by-paragraph and link each one to the specific cited authority or record reference (including direct quotations).
  • Support grading with traceability: Classify support as supported, partially-supported, unsupported, contradicted, quote-inaccurate, or unverified when source text is missing.
  • Dependency risk summary: Identify which arguments rely on unsupported or misused propositions so you can escalate for lawyer review.

Quick Start

Use the proposition-checking skill to check whether each cited case, statute, exhibit, or quoted passage in the draft actually supports the proposition it is used for, using the supplied source text where available.

Frequently Asked Questions about proposition-checking

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I verify legal citations actually support my propositions?

To verify legal citations, you extract propositions paragraph-by-paragraph, link each to its cited authority, retrieve source text, pinpoint excerpts, and output a proposition-by-proposition support classification with dependency risk.

What is citation verification and how does it work for legal drafts?

Citation verification checks whether cited judgments, statutes, or exhibits truly support stated legal or factual propositions. The mechanism extracts claims, matches them to user-supplied source text, and grades support levels including contradicted or quote-inaccurate findings.

How do I detect hallucination and unsupported quotes in litigation drafts?

Detect hallucination and unsupported quotes by applying quote accuracy checks to your litigation drafts. The process maps direct quotations to record references like transcripts or pleadings, classifying any mismatched text as quote-inaccurate or unsupported.

Can I use proposition-checking for evidence summaries and record review?

Yes, you can use proposition-checking for evidence summaries and record review. The task applies to litigation drafts where propositions depend on citations such as exhibits, transcripts, pleadings, or correspondence, pinpointing relevant excerpts to grade support.

What is the best way to identify dependency risk in legal reasoning?

Identify dependency risk by generating a summary that flags which legal arguments rely on unsupported, partially-supported, or contradicted propositions. This traceability allows you to escalate vulnerable arguments for lawyer review.

What happens when source text is missing during citation verification?

When source text is missing during citation verification, the support classification outputs an unverified status for that specific proposition. This constraint ensures you know exactly which cited authority requires further manual retrieval to confirm quote accuracy.