Attachments

What it does

Attachments provides a unified way to give high-fidelity context to LLMs. It acts as a general funnel that transforms a vast array of file formats—including PDFs, Office documents, spreadsheets, HTML, and even audio files—into a standardized set of artifacts (text + images) that can be injected directly into a prompt.

Tools

• att: The primary tool to process files, directories, globs, zip/tar archives, URLs, and GitHub repositories. It supports a DSL for precise control (e.g., selecting specific PDF pages or Excel sheets).
• att_options: Allows the agent to discover available processing options for specific file formats to optimize extraction.

Installation

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "attachments": {
      "command": "uvx",
      "args": [
        "--from",
        "attachments[mcp]",
        "attachments-mcp"
      ]
    }
  }
}

Supported hosts

• Claude Desktop
• Claude Code