Borrowing it
Nothing to install: this file belongs to loosephoto/tokyo-transit-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/loosephoto/tokyo-transit-mcp/main/.claude/agents/landmark-data.mdgit clone --depth 1 https://github.com/loosephoto/tokyo-transit-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/agents/loosephoto/tokyo-transit-mcp/landmark-data)<a href="https://agentmods.dev/agents/loosephoto/tokyo-transit-mcp/landmark-data"><img src="https://agentmods.dev/badge/agents/loosephoto/tokyo-transit-mcp/landmark-data/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.
<a href="https://agentmods.dev/agents/loosephoto/tokyo-transit-mcp/landmark-data"><img src="https://agentmods.dev/badge/agents/loosephoto/tokyo-transit-mcp/landmark-data.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00053 | $0.00459 |
| Opus 5 | $0.00026 | $0.00230 |
| Sonnet 5 | $0.00011 | $0.00092 |
| Haiku 4.5 | $0.00005 | $0.00046 |
Grade A, and why
landmark-data 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 10d 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
ランドマークデータエージェント
src/data/ のランドマーク・文化施設・公園データと src/data/misc.mjs を所有する。駅名・路線グラフ・バス・フェリーのファイルには触れないこと。
所有ファイル
src/data/landmarks.mjs— ランドマーク・観光施設・文化施設・公園src/data/misc.mjs— 事業者マップ・その他データscripts/probe-landmark-all-lang.mjs/scripts/test-landmark-*— ランドマーク回帰テスト
実行手順
- 施設・公園・ランドマークを
landmarks.mjsに追加（必ず ja / en / zh の別名を付与） - 最寄り駅の解決を確認（
search_route経由でランドマーク→最寄り駅が引けること） - 検証を実行:
node --check src/data/landmarks.mjs && node --check src/data/misc.mjs node scripts/probe-landmark-all-lang.mjs
注意
- 訪日客向けランドマーク・テーマパーク・文化施設・公園を ja/en/zh 別名付きで追加する。
- 最寄り駅が路線グラフにない場合は推測せず、保留または理由付き代替を求める。
- 公式データ・公開情報を先に調査してから追加する（推測で施設情報を捏造しない）。
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.
- 10d ago First seen · 29 lines · 53 tokens per session scan A f662e6fe1cea
landmark-data is an agent published in the GitHub repository loosephoto/tokyo-transit-mcp (1 stars, last pushed 3d ago), licensed MIT. It adds 53 tokens to every session and 459 once invoked, about $0.0003 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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