bitbank-mcp-server: Instructions file for Claude Code

CLAUDE.md

bitbank-mcp-server CLAUDE.md is an instructions file for Claude Code from bitbankinc/bitbank-mcp-server. It costs 716 tokens per session, scanned A, original, MIT.

Project instructions for bitbank-mcp-server, a TypeScript service that retrieves public market data from the Bitbank cryptocurrency exchange. They describe its technology, commands, file structure, and coding rules.

In plain words
What is it for?
Use them when developing, testing, formatting, or extending the Bitbank market-data service, including ticker, candle, order-book, and transaction tools.
Why use it?
They give an agent the project context needed to make consistent changes and run the correct checks.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions AGENTS.md.

This is bitbankinc/bitbank-mcp-server's own configuration. It tells Claude Code how to work on bitbank-mcp-server itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything bitbank-mcp-server configures →

Reuse

Borrowing it

Nothing to install: this file belongs to bitbankinc/bitbank-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/bitbankinc/bitbank-mcp-server/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/bitbankinc/bitbank-mcp-server

Made for: Claude Code.

Wrote 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.

agentmods badge for bitbank-mcp-server CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/bitbankinc/bitbank-mcp-server/claude-md/github.svg)](https://agentmods.dev/instructions/bitbankinc/bitbank-mcp-server/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/bitbankinc/bitbank-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/bitbankinc/bitbank-mcp-server/claude-md/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.

agentmods 80×15 button for bitbank-mcp-server CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/bitbankinc/bitbank-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/bitbankinc/bitbank-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 716 This file is loaded in full into every session.
When invoked 716 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00716 $0.00716
Opus 5 $0.00358 $0.00358
Sonnet 5 $0.00143 $0.00143
Haiku 4.5 $0.00072 $0.00072

Measured 9d ago against content hash 53ebe69fd422, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

bitbank-mcp-server CLAUDE.md 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 9d 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.

CLAUDE.md · 68 lines

What it actually says

Rules for bitbank-mcp-server

プロジェクト概要

bitbank 暗号資産取引所の公開APIからマーケットデータを取得する MCP (Model Context Protocol) サーバー。

技術スタック

  • TypeScript (ES2022, Node16 module)
  • MCP SDK (@modelcontextprotocol/sdk)
  • dayjs(日時処理)
  • Zod(バリデーション)
  • BigNumber.js(精密な数値計算)
  • Biome(フォーマッタ・リンター)
  • Vitest(テスト)

コマンド

  • npm run build — TypeScript コンパイル
  • npm run format:check — Biome によるフォーマット・リントチェック
  • npm run format:fix — Biome による自動修正
  • npm test — Vitest によるユニットテスト実行

アーキテクチャ

src/
  index.ts              — エントリーポイント(サーバー起動・ツール登録のみ)
  client.ts             — HTTP クライアント(fetchJson)
  types.ts              — 型定義
  config/
    pair.ts             — ペアバリデーション(regex)
  tools/
    get-ticker.ts       — 単一ペアのティッカー取得
    get-tickers-jpy.ts  — 全JPYペア一括取得(キャッシュ付き)
    get-candles.ts      — ローソク足データ取得
    get-depth.ts        — 板情報取得
    get-transactions.ts — 約定履歴取得
  utils/
    datetime.ts         — 日時変換(dayjs ベース)
    format.ts           — 表示フォーマット

実装ルール

  • 日時処理には Date ではなく dayjs を使用すること。
  • ペアのバリデーションは Zod スキーマ(pairRegex)+ ensurePair で行う。normalizePair に形式変換ロジックは持たせない。
  • 新しいツールは src/tools/ に独立したファイルとして追加し、index.ts で登録する。
  • index.ts にビジネスロジックを書かない。
  • import パスには .js 拡張子を付ける(Node16 module resolution)。

コーディング規約

  • Biome 準拠(シングルクォート、スペースインデント、行幅 140)
  • テストは __tests__/ ディレクトリに配置(*.test.ts
  • 大きな変更を行う場合は README も更新すること。

メンテナンスルール

  • CLAUDE.md(本体)と AGENTS.md は同じ内容を維持すること。
  • AGENTS.mdCLAUDE.md への symlink。
  • 編集時は CLAUDE.md を更新する。

参考

Changes

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.

  1. 9d ago First seen · 68 lines · 716 tokens per session scan A 53ebe69fd422

Subscribe to this mod's changes

bitbank-mcp-server CLAUDE.md is an instructions file published in the GitHub repository bitbankinc/bitbank-mcp-server (0 stars, last pushed 5mo ago), licensed MIT. It adds 716 tokens to every session, about $0.0036 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.

Related

Other instructions, from other repositories

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

deepseek-harness AGENTS.md

AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.

deepseek-ai/deepseek-harness · 3,735 tokens