Local guardrail proxy for AI coding agents. Wraps any MCP server (stdio or Streamable HTTP) and blocks destructive tool calls — DROP TABLE, rm -rf, force-push — before they execute. TOFU catalog pinning against rug pulls, plus tool-poisoning and result-injection scanning. Single Rust binary, Apache-2.0.
Server Config
{
"mcpServers": {
"postgres": {
"command": "aperion-shield",
"args": [
"--",
"npx",
"-y",
"@modelcontextprotocol/server-postgres",
"postgres://localhost/mydb"
]
}
}
}