Security Firewall for Agents — Ryan Dahl, Deno
Deno treats AI agents as untrusted software, requiring external security firewalls beyond model alignment
“Security can't just be wishful thinking that Opus will always obey your wishes.”
Ryan Dahl (Node.js creator, Deno CEO) describes giving Claude Opus full write access to production systems for automated incident response, but argues model alignment alone is insufficient security. Because agents are connected to support systems, they are vulnerable to prompt injection from external actors, leading Deno to treat agents themselves as untrusted software requiring external guardrails. This is a significant engineering pattern emerging for production agentic systems.