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firecrawl-mcp: Instructions file for Claude Code

CLAUDE.md

firecrawl-mcp CLAUDE.md is an instructions file for Claude Code from DaisukeHori/firecrawl-mcp. It costs 783 tokens per session, scanned A, original, MIT.

A set of project instructions for maintaining a TypeScript MCP server deployed on Vercel, including its coding rules and repair process.

In plain words
What is it for?
Use it when maintaining this MCP server: investigate automated issues, update API schemas or endpoints, run builds, and prepare linked pull requests.
Why use it?
It gives an agent repository-specific guidance for diagnosing upstream API changes, making fixes, and checking the build.

Instructions file for Claude Code

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

This is DaisukeHori/firecrawl-mcp's own configuration. It tells Claude Code how to work on firecrawl-mcp 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 firecrawl-mcp configures →

not rated 1repo 2mo ago A scan 783 tokens original MIT
View source ↗ DaisukeHori/firecrawl-mcp firecrawl-mcp-omega.vercel.app
Reuse

Borrowing it

Nothing to install: this file belongs to DaisukeHori/firecrawl-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.

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

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 firecrawl-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/daisukehori/firecrawl-mcp/claude-md.svg)](https://agentmods.dev/instructions/daisukehori/firecrawl-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/daisukehori/firecrawl-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/daisukehori/firecrawl-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 783 This file is loaded in full into every session.
When invoked 783 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 $0.00783 $0.00783
Opus 5 $0.00392 $0.00392
Sonnet 5 $0.00157 $0.00157
Haiku 4.5 $0.00078 $0.00078

Measured 7d ago against content hash 3274ff1b40e3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

firecrawl-mcp 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 7d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

CLAUDE.md · 63 lines

What it actually says

CLAUDE.md - MCP サーバー自動修復ガイド

プロジェクト概要

このリポジトリは MCP (Model Context Protocol) サーバーであり、Vercel にデプロイされている。 Streamable HTTP トランスポートを使用し、Claude.ai から直接接続して利用される。

技術スタック

  • 言語: TypeScript
  • ランタイム: Node.js 22+
  • デプロイ: Vercel (Serverless Functions)
  • トランスポート: Streamable HTTP (/api/mcp エンドポイント)
  • 認証: x-api-key ヘッダーによる API キー認証

コード規約

  • TypeScript strict mode 必須
  • ESM ("type": "module")
  • エラーメッセージは英語、コメントは日本語可
  • すべてのツールに明確な description を付与
  • ツール名は snake_case で リソース_アクション 形式（例: contact_search, dns_create_record）

Issue 対応フロー（mcp-doctor からの自動起票 Issue）

1. Issue の分析

  • Issue 本文のチェンジログ URL を確認
  • 上流 API の変更内容を特定
  • 影響を受けるツール（関数）を列挙

2. ブランチ作成

  • ブランチ名: fix/api-update-YYYY-MM-DD または fix/health-{server-name}-YYYY-MM-DD
  • main ブランチから作成

3. コード修正

  • 上流 API の変更に合わせてリクエスト/レスポンスのスキーマを更新
  • 非推奨になった API エンドポイントを新しいものに置換
  • 新しい API が追加された場合は対応するツールを追加
  • 削除された API があればツールを削除し、README を更新

4. テスト

  • npm run build が成功することを確認
  • TypeScript の型エラーがないことを確認
  • 可能であればドライランテスト（副作用のないツールの呼び出し）

5. PR 作成

  • PRタイトル: fix: [API名] API変更対応 または fix: health check failure
  • PR本文に変更内容のサマリーを記載
  • 対応する Issue を Closes #XX で紐付け
  • ラベル: mcp-doctor

ディレクトリ構造

src/
├── index.ts          # Vercel エントリポイント（/api/mcp）
├── tools/            # ツール定義（1ファイル1ツールまたは機能グループ）
├── types/            # 型定義
└── utils/            # ユーティリティ（認証、エラーハンドリング等）

重要な注意事項

  • 認証情報をコードにハードコードしない
  • Vercel の環境変数で管理されるシークレットには触れない
  • package.json の依存関係を変更した場合は npm install → package-lock.json もコミット
  • README.md のツール数やツール一覧も更新する
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. 7d ago First seen · 63 lines · 783 tokens per session scan A 3274ff1b40e3

Subscribe to this mod's changes

firecrawl-mcp CLAUDE.md is an instructions file published in the GitHub repository DaisukeHori/firecrawl-mcp (1 stars, last pushed 2mo ago), licensed MIT. It adds 783 tokens to every session, about $0.0039 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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