tool poisoning scanner for Claude Desktop
io.github.guardbee/tool-poisoning-scanner
Scans MCP tool definitions for hidden instructions and confused-deputy sinks
client:Claude Desktop
transport:stdio
runtime:npm
Install tool poisoning scanner in Claude Desktop
~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json
{
"mcpServers": {
"tool-poisoning-scanner": {
"command": "npx",
"args": [
"-y",
"@guardbee/mcp-tool-poisoning-scanner"
]
}
}
}Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs