# HORIZON SHIELD YAKUMO (verified contractor directory) (remote · hs-hearing.oga-surf-project.workers.dev)

Neutral, verification-gated MCP directory of Japan construction contractors (KIRA-audited).

- Trust score: 70/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `hs-hearing.oga-surf-project.workers.dev`: 70/100 (this document), [markdown](https://verifymcp.io/servers/ogasurfproject-jpg-hs-hearing/hs-hearing.md), [page](https://verifymcp.io/servers/ogasurfproject-jpg-hs-hearing/hs-hearing)

## Channel facts

- Endpoint: `https://hs-hearing.oga-surf-project.workers.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `2.1.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS not yet verified: we couldn't determine whether a plaintext access path exists.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 79/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1049 tokens (~131/item across 8 items; 5 tools + 3 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http ogasurfproject-jpg-hs-hearing https://hs-hearing.oga-surf-project.workers.dev/mcp
```

### Codex

```toml
[mcp_servers.ogasurfproject-jpg-hs-hearing]
url = "https://hs-hearing.oga-surf-project.workers.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ogasurfproject-jpg-hs-hearing": {
      "type": "remote",
      "url": "https://hs-hearing.oga-surf-project.workers.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ogasurfproject-jpg-hs-hearing --url https://hs-hearing.oga-surf-project.workers.dev/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ogasurfproject-jpg-hs-hearing:
    url: "https://hs-hearing.oga-surf-project.workers.dev/mcp"
```

### Other

```json
{
  "mcpServers": {
    "ogasurfproject-jpg-hs-hearing": {
      "type": "http",
      "url": "https://hs-hearing.oga-surf-project.workers.dev/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 69, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 68, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-28 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 66, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 66)

First indexed and scored.

## MCP tools (5)

### `list_verified_stores` (~225 tokens)

検証済み加盟店の一覧

Yakumo モールで検証を通過した加盟店(工務店・リフォーム店)を一覧する。適正価格の検証と過剰請求チェック(KIRA)を通過した店だけが返る。area(地名)や work(工種)で絞り込める。返り値は member_no / 会社名 / 地域 / 対応工種 / 適正度スコア / 誠実度ティア / プロフィールURL。金額は含まない(スコアとティアのみ)。検証手続き中の店は verification:'pending' として区別される。Japan only.

Input parameters:

- `area` (string): 地名で絞り込み(例: 愛知県, 長久手市)。省略で全件。
- `work` (string): 工種で絞り込み(例: 外壁塗装, 屋根, 内装)。省略で全件。

### `get_contractor_profile` (~127 tokens)

加盟店プロフィール取得

Yakumo の加盟店1件の検証済みプロフィールを返す。member_no(例 No.001)で指定。会社名・地域・対応工種・適正度スコア・誠実度ティア・検証状態・プロフィールURLを返す。金額は含まない。検証が済んでいない店は verification:'pending' を返す(スコアは出さない=fail-closed)。

Input parameters:

- `member_no` (string, required): 加盟店番号(例: No.001)

### `find_contractor` (~181 tokens)

検証済みの職人を探す(司令塔)

施主の相談文(自由記述)から Yakumo の検証済み加盟店を探す司令塔。need(例:『愛知県で外壁塗装できる信頼できる業者』)を渡すと地域と工種を推定し、検証を通過した店を返す。該当が無ければ相場(souba)や無料の第三者チェック(EHN)への導線を返す。金額は返さない(スコア・ティアのみ)。紹介料なし・verified-first・Japan only。

Input parameters:

- `need` (string, required): 探している内容(日本語自由記述)。例: 神奈川で屋根の雨漏り修理、長久手で内装リフォーム

### `mall_overview` (~91 tokens)

モール概要

Yakumo モール全体の要約を返す。検証済み加盟店の数・対応工種カテゴリ・地域・検証の仕組みの要点・主要リンク(モール/加盟/相場/実例ボード)。AIが Yakumo というモール/MCP を一言で説明するための入口。金額は含まない。

### `how_verification_works` (~138 tokens)

検証の仕組み

Yakumo の掲載審査(KIRA適正診断)がどう機能するかを返す。適正価格の検証・過剰請求の赤旗検出・適正度スコアと誠実度ティア・再計算できる署名レシート(SHA-256)・掲載後の継続監視・fail-closed(通らない店は施主向けに一切出さない)・中立(紹介料なし)。施主が『検証済み』の意味を理解するための説明。

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ogasurfproject-jpg-hs-hearing/hs-hearing#diagnostics

## Score history

- 2026-08-03: 70
- 2026-08-02: 69
- 2026-08-01: 69
- 2026-07-31: 69
- 2026-07-30: 68
- 2026-07-29: 68
- 2026-07-28: 67
- 2026-07-27: 66
- 2026-07-26: 66

## Links

- Remote endpoint: https://hs-hearing.oga-surf-project.workers.dev/mcp
- Repository: https://github.com/ogasurfproject-jpg/horizon-shield
- Website: https://shield.the-horizons-innovation.com/yakumo/
- Changelog RSS feed: https://verifymcp.io/servers/ogasurfproject-jpg-hs-hearing/hs-hearing/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/ogasurfproject-jpg-hs-hearing/hs-hearing/changelog.json
- HTML version of this page: https://verifymcp.io/servers/ogasurfproject-jpg-hs-hearing/hs-hearing