{ "id": "mcp_server:filesystem", "name": "Filesystem MCP Server", "kind": "MCP Server", "runtime": "node", "transport": "stdio", "sandbox": true, "start_command": "npx -y @modelcontextprotocol/server-filesystem /tmp", "source": "@modelcontextprotocol/server-filesystem", "license": "MIT", "desc": "Read/write files under an allowed root. Good first sandbox to test mcp.test." }