# @codeagentjp/law-diff-mcp

> Use this tool when you need to track changes in Japanese e-Gov laws and compare different versions of law texts. It solves problems related to legal research and compliance by providing a way to retrieve and diff law revisions by law history ID. The tool takes a law history ID as input and outputs the diffed law text, making it useful for legal professionals and researchers who need to stay up-to-date on law changes.

Canonical page: https://skillsregistry.net/skills/shayouworld-law-diff-mcp  
JSON: https://api.skillsregistry.net/v1/skills/shayouworld-law-diff-mcp

## Description

Enables finding Japanese e-Gov law revisions and diffing law text by law history ID.

## Trust

- **Trust score (0–1):** 0.99
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-28

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/md4byh7lfb)
- **Repository:** <https://github.com/SHAYOUWORLD/law-diff-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "shayouworld-law-diff-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/shayouworld-law-diff-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/shayouworld-law-diff-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt