PolarisAGI Knowledge Base MCP

An official Model Context Protocol (MCP) server plugin for PolarisAGI, enabling agents to securely read local files and directories.

Features

• List Files: Explore directory structures.
• Read Content: Read the textual contents of local files for RAG or context injection.
• Sandboxed: Restricts file reading strictly to a permitted directory via environment variables.

Architecture

This plugin is a zero-dependency, pure TypeScript implementation utilizing native Node.js fs APIs.

Usage with PolarisAGI

Configure your AI agent with the following MCP server setting, replacing /your/allowed/dir with the absolute path you wish to expose to the agent:

{
  "mcpServers": {
    "polarisagi-knowledge-base": {
      "command": "npx",
      "args": ["-y", "polarisagi-knowledge-base@latest"],
      "env": {
        "POLARISAGI_KB_ALLOWED_DIR": "/your/allowed/dir"
      }
    }
  }
}

Requirements

• Node.js v18 or newer.