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simple-fetch

yoloshii
Updated Today
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Metamcp

About

The simple-fetch skill demonstrates the basic CLI execution pattern for fetching URL content, serving as a template for custom skill development. It accepts a required --url parameter, calls the MCP fetch tool, and returns the result. Use this skill to learn foundational patterns or fetch web content directly from Claude Code.

Documentation

Simple Fetch Skill

When to Use This Skill

Use this Skill to:

  • Learn the basic skill pattern
  • Fetch content from a URL
  • Use as a template for creating custom skills

This is a demonstration skill showing the minimal CLI-based pattern.

What This Skill Does

Demonstrates the core skill pattern:

  1. Accept CLI arguments (--url)
  2. Call an MCP tool (fetch__fetch)
  3. Return result

Instructions

When you need to fetch content from a URL, execute:

cd /home/khitomer/Projects/mcp-code-execution-enhanced

uv run python -m runtime.harness scripts/simple_fetch.py \
    --url "https://example.com"

Parameters

  • --url: The URL to fetch (required)

Example Usage

# Fetch a webpage
uv run python -m runtime.harness scripts/simple_fetch.py \
    --url "https://docs.example.com/api"

# Fetch documentation
uv run python -m runtime.harness scripts/simple_fetch.py \
    --url "https://github.com/owner/repo/README.md"

Expected Output

The skill returns the fetched content and prints:

  • Success message with byte count
  • Or error message if fetch fails

MCP Servers Required

Configure a fetch-capable MCP server in mcp_config.json:

{
  "mcpServers": {
    "fetch": {
      "type": "stdio",
      "command": "uvx",
      "args": ["mcp-server-fetch"]
    }
  }
}

Technical Notes

  • Pattern: CLI args → MCP call → Result
  • Token cost: ~110 tokens (discover + read + execute)
  • Time: <10 seconds
  • Immutable: Parameters via CLI, no file editing needed

This skill demonstrates the foundation for creating more complex MCP workflows.

Quick Install

/plugin add https://github.com/yoloshii/mcp-code-execution-enhanced/tree/main/simple-fetch

Copy and paste this command in Claude Code to install this skill

GitHub 仓库

yoloshii/mcp-code-execution-enhanced
Path: .claude/skills/simple-fetch

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