legal-fact-checker

legal-fact-checker is a skill for Claude Code, Codex from lawyerllsx-dotcom/Legal-Workflow-Chain. It costs 143 tokens per session (3,943 once invoked), scanned A, original, MIT.

A Chinese-language fact-checking guide for legal documents such as contracts, case analyses, legal opinions, and legal assignments. It checks provided drafts against factual and legal support without inventing laws, cases, or facts.

In plain words
What is it for?
Use it to verify an existing Chinese legal document, especially its facts, citations, legal rules, and conclusions.
Why use it?
It helps catch unsupported claims, incorrect legal references, and factual errors in an existing legal draft. It also routes research or specialized reasoning work to the appropriate separate process.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions CLAUDE.md.

Good fit Use it to verify an existing Chinese legal document, especially its facts, citations, legal rules, and conclusions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/lawyerllsx-dotcom/legal-workflow-chain/legal-fact-checker
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add lawyerllsx-dotcom/Legal-Workflow-Chain --skill legal-fact-checker
Clone the repo
git clone --depth 1 https://github.com/lawyerllsx-dotcom/Legal-Workflow-Chain

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for legal-fact-checker

README.md
[![agentmods](https://agentmods.dev/badge/skills/lawyerllsx-dotcom/legal-workflow-chain/legal-fact-checker/github.svg)](https://agentmods.dev/skills/lawyerllsx-dotcom/legal-workflow-chain/legal-fact-checker)
Your own site
<a href="https://agentmods.dev/skills/lawyerllsx-dotcom/legal-workflow-chain/legal-fact-checker"><img src="https://agentmods.dev/badge/skills/lawyerllsx-dotcom/legal-workflow-chain/legal-fact-checker/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for legal-fact-checker

Your own site · 80×15
<a href="https://agentmods.dev/skills/lawyerllsx-dotcom/legal-workflow-chain/legal-fact-checker"><img src="https://agentmods.dev/badge/skills/lawyerllsx-dotcom/legal-workflow-chain/legal-fact-checker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 143 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,943 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00143 $0.03943
Opus 5 $0.00072 $0.01972
Sonnet 5 $0.00029 $0.00789
Haiku 4.5 $0.00014 $0.00394

Measured 12d ago against content hash a17970280616, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

legal-fact-checker scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/legal-fact-checker/SKILL.md · 293 lines

How it starts

The opening of the file, as written. The whole thing — 293 lines — stays where its author put it; the contents beside it link to each section on GitHub.

接力模式检测(所有 skill 通用规则)

加载后静默检查:若上下文存在 [Skill接力: legal-fact-checker]接力模式

  • 跳过用户身份询问、新手引导、输出格式选择
  • 从上一 skill 的"接力上下文"+"待办"字段直接获取输入
  • 聚焦完成待办任务,不主动扩展分析范围

不触发情况(强制排除 —— 满足任一即不触发)

用户意图 应交由
从零检索法条/案例/法规(未提供已有文书) legal-research
仅格式化脚注/引注 legal-citation-comprehensive
仅整理证据材料到模板 evidence-catalog-generator
仅识别/梳理争议焦点(无已有草稿) dispute-issue-identification
仅做三段论推理/涵摄分析 deductive-reasoning
仅编辑 .docx 文件格式 docx-editing
仅解决法条竞合/规范冲突/证据矛盾 conflict-resolution

判定口诀:用户提供了已有文书/草稿且要求"核查/检查/验证"→ 本 skill;用户只是"找/写/格式化/整理"→ 不触发。

多 Skill 协作接力协议(2026-07-17 更新)

加载后立即执行:检查用户请求是否同时需要本 skill 不覆盖的能力。

前置接力(先检索/推理再核查)

如果用户请求包含"检索/查找法条/找案例"且未提供已有材料 → 本 skill 无法凭空核查,必须先由 legal-research 检索:

[Skill接力: legal-research]
接力上下文: 需要先检索相关法条和案例作为核查基准
待办: 检索后回到 legal-fact-checker 进行事实核查

如果用户请求涉及复杂案件但争议焦点未梳理 → 先识别争议焦点:

[Skill接力: dispute-issue-identification]
接力上下文: 需要先梳理案件争议焦点,确定核查重点
待办: 识别完成后回到 legal-fact-checker 进行核查

核查中发现问题的分流

核查过程中发现的问题需要分流到专门的推理 skill 处理:

核查中发现 接力到 说明
推理链存在逻辑谬误(肯定后件/否定前件等) deductive-reasoning 由推理 skill 修正后回到核查
引用了冲突或已失效的法条 conflict-resolution 解决规范冲突后回到核查
多个法条可适用但未做竞合分析 conflict-resolution 确定优先适用规范后回到核查

后置接力(核查完成后格式化引注)

用户请求还包含 接力到 关键词
规范脚注/引注格式 legal-citation-comprehensive 脚注、引注、引用格式、规范引注

接力前自检(输出接力标记前强制执行)

□ 接力目标是否正确?(核查发现问题 → deductive/conflict;核查完成 → citation) □ "待办"字段是否附上了核查发现的具体问题清单,让下一个 skill 知道修什么? □ 本 skill 的核心任务(事实核查)是否确实已完成?

执行自检通过后在接力标记前输出确认行:✅ 接力自检通过: 目标正确([skill-name]) | 待办完整 | 本skill任务已完成

接力标记格式

[Skill接力: next-skill-name]
接力上下文:
- 结论: {一句话核心结论}
- 依据: {关键法条/事实/证据,分条列出}
- 置信度: {高/中/低 + 理由}
- 待核验项: {需下一 skill 或人工核实的点;无则填"无"}
待办: {下一个 skill 需要完成的具体任务}

核心原则

一切法律产出必须有事实依据。禁止编纂案例、法规或事实。

本技能在法律相关任务中强制执行三道防线:

  1. 用户材料锚定——优先核对用户放在任务文件夹里的法规、案例、PDF、网页截图、数据库结果和 Word 文档
  2. 可用时回源——有北大法宝 MCP 或网页权限时再做回源核验;没有权限时标 [待补: 来源],不得声称已验证
  3. 无据声明——提交前自检,单独输出无据内容清单

Read the full file on GitHub · 293 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 293 lines · 143 tokens per session scan A a17970280616

Subscribe to this mod's changes

legal-fact-checker is a skill published in the GitHub repository lawyerllsx-dotcom/Legal-Workflow-Chain (5 stars, last pushed 2d ago), licensed MIT. It adds 143 tokens to every session and 3,943 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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