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b612 (hakuto AI) MCP Server

not responding

b612 (hakuto AI) is listed as active in the registry but did not answer our last check. It exposes 10 tools.

Design-review copilot: industry design checkpoints, edge cases, and Japanese legal notes.

Uptime history 57 days of history · worst day 0%
57 days agonow
0.0%
Uptime 24h
0 of 91 checks
10
Tools
read from the server
332 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 3

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 23 September 2026. No other catalogue keeps this.

8 Oct a tool description was rewritten b612_update
23 Sep 2 tools appeared b612_grow, b612_reference

b612 (hakuto AI) does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

run in your terminal
claude mcp add b612 --transport http https://mcp.hakuto-0209.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://mcp.hakuto-0209.com/mcp
~/.codex/config.toml
[mcp_servers.b612]
url = "https://mcp.hakuto-0209.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "b612": {
      "url": "https://mcp.hakuto-0209.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "b612": {
      "type": "http",
      "url": "https://mcp.hakuto-0209.com/mcp"
    }
  }
}

Available tools 10

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

b612
b612_design
ホームページ・LP・UI・チラシを作る前に必ず引く。生成AIが出しがちで顧客に「AIくさい」と言われる形(注記の左に色の縦棒・器と同じ色の面・均一な3列カード・全部同じ角丸と影)の禁止事項と、カードは角張らせる・並びの間隔は親のgapで持つ・複雑なSVGは無料素材を使う、などの必須事項を返す。あわせて、放っておくと生成AIが出さない6つ(斜めの帯・斜めの文字・派手なCTA・追従CTA・写真の上の文字・飾りの浮遊)と、そのまま貼れるCSS/JSの一覧を返す。snippet に名前を渡すとその実装を全文返す。
b612_domain_preset
業種/ドメイン別の必須モデル・エッジケース・必須法令・アンチパターンを返す。対応ドメイン: accounting, ai-chat, ai-content-ops, android, beauty, blog, booking, chat, community, corporate, corporate-story, crm, ec, event, fukushi, game, healthcare, hr, instagram, inventory, ios, line, llmo, lms, lp, pos, project, rag, realestate, restaurant, retrogame, saas, seo, subscription, survey, task
b612_grow
作った HP/LP/商品/コンテンツを、SNS(X / Instagram / Threads)・note・AI検索(AEO)で広めて売るための戦略の作り方を返す。「集客したい」「SNS戦略」「売り方」「AEO」「AIの回答に出したい」「note を読まれたい」等で使う。7つの汎用原則+チャネル別の型+AEOの型に加え、生成AIが出しがちな戦略が抜かす『日本の法令ガード(ステマ規制・景表法・薬機法・特商法)』と『計測の実装(UTM・4指標)』を必ず含む。product に何を・誰に・いくらで売るか、goal に目標、channel に重点媒体を渡すと、その条件に当てて返す。
b612_notes
利用者が hakuto の公式LINE に送ったメモを読み込む。「今日のメモをまとめて」「昨日のメモ見せて」「今週のアイデア整理して」などと言われたらこれを使う。days で遡る日数を指定する(既定は1=今日ぶん)。返ってくるのは日付ごとに並べた生のメモ。要約・分類・タスク化は、この結果を読んで自分で行うこと。
b612_patterns
b612 の実戦ノウハウ(典型エラー・推測実装の傾向・過去に効いた意思決定)を返す。案件固有名は含まない公開版。全文は約88,000字あるため、既定は見出し索引のみを返す。query に検索語を渡すと一致した節だけを返す(推奨)。
b612_principles
b612 メソッドの思考の核(NO SPECULATION・実装前の3問自問・5原則・握りつぶし禁止)を返す。レビューや実装を始める前に読み、原則に沿って進めること。
b612_reference
HP・LP・UI を作る前に、実在の公開サイトを参考として引く。業種や雰囲気(例:「カフェのLP」「士業のコーポレート」「買取サービス」)を渡すと、日本で実際に公開されている LP/HP を数件、URL と実測した配色(+分かればフォント)で返す。生成AIが出しがちな『それっぽいだけ』のデザインを、実在サイトの型に寄せるために使う。さらに、その業種で使える無料画像(ボーの素材やさん)の直リンクを最大60点まとめて返す。画像が要る HP/LP/UI 制作では必ずこれを呼び、返ってきた画像を各セクションに置くこと。業種を省くと、収録している業種の一覧を返す。
b612_review_checklist
対象の種類に応じた b612 のレビュー観点を返す。返ってきた観点を使って呼び出し側の AI が実レビューを行う。対応: lp, hp, ec, api, saas, game, form, generic
b612_rules
コードに当てる検出ルール(ID・重大度・なぜ危険か・直し方)の一覧を返す。**呼び出し側の AI がこのルールを手元のコードに当てて検査する**(コードは b612 サーバーに送らない)。握りつぶし / 秘密の直書き / 0行更新の見逃し / タイマー多重起動 / 印刷崩れ / 破壊的SQL / XSS 等。ルールID: swallow-empty-catch, swallow-catch-comment-only, swallow-nullish-default, swallow-nullish-any, supabase-update-without-select, hardcoded-secret, console-log-secret, raf-loop-not-idempotent, setinterval-no-clear, top-level-sdk-client, next-force-dynamic, print-transform-scale, global-element-selector, img-no-dimensions, destructive-sql, bulk-update-no-where, dangerous-html, eval-use, mcp-stdout-log, line-postback-encode, dark-body-light-surface, print-white-text, last-child-visual, aspect-ratio-with-object-position, tap-target-too-small, leftover-min-height, overflow-hidden-full-height, empty-element-no-fallback, fail-open-secret-check, charge-before-persist, fetch-result-ignored
b612_update
b612 のアップデート。エージェント・法令ファイル・業種プリセット・雛形・参照ドキュメントを最新に更新する手順を返す。「b612 をアップデートして」「b612 を最新にして」と言われたらこれを使う。返すのは利用者本人が自分で実行する更新手順で、実行すると手元と違うファイルだけが置き換わる(既存は .bak を残す)。新しい専門エージェントが増えたときや、法令が改正されたときに実行する。

Endpoints

URLTransportStateLatencyChecked
https://mcp.hakuto-0209.com/mcp streamable-http answering 332 ms 7 min ago

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b612 (hakuto AI) — questions

Answers built from our own checks of this server.

What can b612 (hakuto AI) do?
It exposes 10 tools, read directly from the server on our last check. Among them: b612_design, b612_domain_preset, b612_grow, b612_notes, b612_patterns, b612_principles and 4 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is b612 (hakuto AI) working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 332 ms. The bar chart above shows every period we have measured.
The registry lists b612 (hakuto AI) as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect b612 (hakuto AI)?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does b612 (hakuto AI) need an API key?
No. b612 (hakuto AI) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.