ThumbGate — PreToolUse Agent Firewall for Cursor
io.github.igorganapolsky/thumbgate
Sub-ms PreToolUse firewall, feedback memory, and single-use permits for AI coding agents.
client:Cursor
transport:stdio
runtime:npm
Install ThumbGate — PreToolUse Agent Firewall in Cursor
~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json
{
"mcpServers": {
"thumbgate": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"thumbgate"
]
}
}
}Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs