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mcp-server-multi-fetch: Instructions file for Claude Code

CLAUDE.md

mcp-server-multi-fetch CLAUDE.md is an instructions file for Claude Code from alexyangjie/mcp-server-multi-fetch. It costs 863 tokens per session, scanned A, a copy of mcp-server-multi-fetch AGENTS.md, MIT.

A set of project instructions for an MCP server that fetches web pages and converts them to Markdown for language models. MCP is a standard way for an AI application to call tools provided by another program.

In plain words
What is it for?
Use it when working on this Python server, especially its HTTP fetching, HTML-to-Markdown conversion, command-line entry point, packaging, tests, or Docker setup.
Why use it?
It gives the coding agent the project's structure, dependencies, build process, and conventions before it changes the code. This reduces the risk of adding code in the wrong place or using the wrong commands.

Instructions file for Claude Code

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

This is alexyangjie/mcp-server-multi-fetch's own configuration. It tells Claude Code how to work on mcp-server-multi-fetch 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 mcp-server-multi-fetch configures →

not rated 1repo 1y ago A scan 863 tokens copy · 97% MIT
View source ↗ alexyangjie/mcp-server-multi-fetch
Reuse

Borrowing it

Nothing to install: this file belongs to alexyangjie/mcp-server-multi-fetch. 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/alexyangjie/mcp-server-multi-fetch/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/alexyangjie/mcp-server-multi-fetch

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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.

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Per session 863 This file is loaded in full into every session.
When invoked 863 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 97% copy Near-identical to another mod 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 $0.00863 $0.00863
Opus 5 $0.00432 $0.00432
Sonnet 5 $0.00173 $0.00173
Haiku 4.5 $0.00086 $0.00086

Measured 10d ago against content hash 39dc355b227e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

mcp-server-multi-fetch 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 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.

Origin

This is a copy

97% identical to mcp-server-multi-fetch AGENTS.md — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CLAUDE.md · 82 lines

What it actually says

Claude Code

Project Overview

  • Name: mcp-server-multi-fetch
  • Description: A Model Context Protocol (MCP) server providing tools to fetch and convert web content for usage by LLMs.
  • License: MIT

Repository Structure

LICENSE            # MIT License
pyproject.toml     # PEP 621 project metadata and dependencies
uv.lock            # Locked dependencies for uv dev environment
README.md          # User guide and configuration examples
src/
  mcp_server_multi_fetch/
    __init__.py    # CLI entrypoint (main, serve)
    __main__.py    # Module entry for `python -m mcp_server_fetch`
    server.py      # Core server logic: tool & prompt registration, HTTP fetching, HTML-to-Markdown conversion

Build & Packaging

  • Build backend: hatchling ([build-system] in pyproject.toml)
  • Dev dependencies managed with uv and locked in uv.lock (e.g., pyright, ruff)
  • Docker build: multi-stage, uses ghcr.io/astral-sh/uv, then Python 3.12-slim
  • Entry point in container: mcp-server-multi-fetch

Dependencies & Frameworks

  • Python ≥3.10 (3.12 in Docker)
  • Async HTTP client: httpx
  • HTML simplification: readabilipy (Readability)
  • Markdown conversion: markdownify
  • Robots.txt parsing: protego
  • JSON schemas & validation: pydantic v2
  • MCP integration: mcp library (mcp.server, mcp.types, mcp.shared.exceptions)
  • CLI & concurrency: argparse, asyncio
  • Linting & type checking (dev): ruff, pyright

Core Components

  • CLI (src/mcp_server_fetch/__init__.py):
    • Parses flags: --user-agent, --ignore-robots-txt, --proxy-url
    • Calls serve() (async)
  • Server (src/mcp_server_fetch/server.py):
    • Registers MCP tools & prompts:
    • Tool: fetch (Pydantic model Fetch)
    • Prompt: fetch
    • Tool: fetch_multi (Pydantic model FetchMulti)
    • Prompt: fetch_multi
    • Tool: search (Pydantic model Search)
    • Prompt: search
    • Implements:
      • check_may_autonomously_fetch_url(): respects robots.txt or raises McpError
      • fetch_url(): HTTP GET, error handling, choose raw vs. markdown
      • Tool handler (call_tool): enforce schema, fetch content in chunks
      • Prompt handler (get_prompt): user-initiated fetch
    • Runs via STDIO server: mcp.server.stdio.stdio_server

Usage

  • CLI: mcp-server-multi-fetch [--user-agent UA] [--ignore-robots-txt] [--proxy-url PROXY_URL]
  • Python module: python -m mcp_server_multi_fetch
  • UVX: uvx mcp-server-multi-fetch

Development Workflow

  • Install dependencies: uv sync (dev+prod), or pip install .
  • Lint: ruff src/
  • Type check: pyright

Notable Conventions & Tips

  • HTTP timeouts: 30s
  • Default persona User-Agent vs. Autonomous UA
  • Chunked fetching via max_length (default 50000) and start_index
  • McpError used for controlled error signaling over MCP wire
  • No unit tests included (add as needed)

For the AI Assistant

Refer to this file when:

  • Exploring or modifying the server logic (server.py)
  • Updating CLI flags or tooling configuration
  • Adjusting dependency versions or build settings
  • Understanding request-handling flow and error semantics

Keep this codex up-to-date with any structural or conceptual changes.

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. 10d ago First seen · 82 lines · 863 tokens per session scan A 39dc355b227e

Subscribe to this mod's changes

mcp-server-multi-fetch CLAUDE.md is an instructions file published in the GitHub repository alexyangjie/mcp-server-multi-fetch (1 stars, last pushed 1y ago), licensed MIT. It adds 863 tokens to every session, about $0.0043 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to mcp-server-multi-fetch AGENTS.md, differing in 2 lines, and is treated as a copy.

Research
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