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.
git clone --depth 1 https://github.com/koizumikento/reinfolib-mcpWrote 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.
[](https://agentmods.dev/rules/koizumikento/reinfolib-mcp/project-structure)<a href="https://agentmods.dev/rules/koizumikento/reinfolib-mcp/project-structure"><img src="https://agentmods.dev/badge/rules/koizumikento/reinfolib-mcp/project-structure.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00543 | $0.00543 |
| Opus 5 | $0.00271 | $0.00271 |
| Sonnet 5 | $0.00109 | $0.00109 |
| Haiku 4.5 | $0.00054 | $0.00054 |
Grade A, and why
project-structure 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 8d 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.
What it actually says
不動産情報ライブラリMCPプロジェクト構造
このプロジェクトは、国土交通省の不動産情報ライブラリAPIを使用したMCPサーバーとPythonライブラリを提供します。
プロジェクト構造
reinfolib-mcp/
├── pyproject.toml # uvベースのプロジェクト設定
├── uv.lock # 依存関係のロックファイル
├── README.md # プロジェクトの説明
├── src/
│ └── reinfolib_mcp/
│ ├── __init__.py
│ ├── client.py # API クライアント
│ ├── models.py # データモデル
│ ├── exceptions.py # カスタム例外
│ └── mcp_server.py # MCPサーバー実装
├── tests/
│ ├── __init__.py
│ ├── test_client.py
│ ├── test_models.py
│ └── test_mcp_server.py
└── examples/
├── basic_usage.py
└── mcp_client_example.py
重要な方針
- 開発環境: uvを使用した現代的なPython環境構築
- API仕様: 不動産情報ライブラリAPIに準拠
- 出力形式: JSON・GeoJSON・バイナリベクトルタイルに対応
- API数: 30種類のAPIエンドポイントをサポート
- 認証: APIキーベースの認証
- 言語: 日本語（一部英語対応）のデータを扱う
主要APIカテゴリ
- 不動産価格（取引価格・成約価格）情報
- 地価公示・地価調査
- 都市計画決定GISデータ
- 国土数値情報（学校、医療機関、福祉施設等）
- 災害リスク情報
- 交通インフラ情報
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.
- 8d ago First seen · 51 lines · 543 tokens per session scan A 5b634d145529
project-structure is a cursor rule published in the GitHub repository koizumikento/reinfolib-mcp (2 stars, last pushed 12d ago), licensed MIT. It adds 543 tokens to every session, about $0.0027 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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