Scans MCP tool definitions for hidden instructions and confused-deputy sinks
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add tool-poisoning-scanner -- npx -y @guardbee/mcp-tool-poisoning-scanner~/.codex/config.toml
[mcp_servers.tool-poisoning-scanner]
command = "npx"
args = ["-y", "@guardbee/mcp-tool-poisoning-scanner"]
# codex mcp add tool-poisoning-scanner -- npx -y @guardbee/mcp-tool-poisoning-scanner~/.cursor/mcp.json
{
"mcpServers": {
"tool-poisoning-scanner": {
"command": "npx",
"args": [
"-y",
"@guardbee/mcp-tool-poisoning-scanner"
]
}
}
}.vscode/mcp.json
{
"servers": {
"tool-poisoning-scanner": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@guardbee/mcp-tool-poisoning-scanner"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"tool-poisoning-scanner": {
"command": "npx",
"args": [
"-y",
"@guardbee/mcp-tool-poisoning-scanner"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"tool-poisoning-scanner": {
"command": "npx",
"args": [
"-y",
"@guardbee/mcp-tool-poisoning-scanner"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"tool-poisoning-scanner": {
"command": "npx",
"args": [
"-y",
"@guardbee/mcp-tool-poisoning-scanner"
]
}
}
}