03 | MCP Setup and First Connectivity Check

What You Will Learn

After this article, your AI client should call tools directly instead of returning plain text only.

Prerequisites

• Python and IDE setup already completed
• pip is available in your terminal

Step 1: Install MCP Command

pip install "cwprep[mcp]"

Then verify:

cwprep-mcp --help

Step 2: Configure MCP Server

Add this to your MCP client config:

{
  "mcpServers": {
    "cwprep": {
      "command": "cwprep-mcp",
      "args": []
    }
  }
}

cwtwb follows the same pattern with your local executable path.

Step 3: Restart Client and Validate

• Restart Claude/Cursor/VS Code plugin
• Confirm cwprep and cwtwb appear in tool list
• Run a minimal test prompt

Suggested prompt:

Use cwprep to generate a minimal flow:
read orders table, filter sales > 100, output a tfl file.

Validation Checklist

• A real tool call is triggered
• Structured output or file path is returned
• Not just "I cannot access local tools"

Common Issues

• command not found: cwprep-mcp: use absolute executable path
• Invalid config: check JSON commas and quotes
• Tool not shown: restart client and check again

Next Step

Move to basic cases: script first, then MCP.