Detection Isn't Blocking: How to Actually Verify Your AI Agent's Security Guard
shoumikgoswami · reddit · 2026-10-28
A practical guide on verifying agent guardrails: StackOne's open-source Defender defaults blockHighRisk to false, meaning detections can be flagged without ever being blocked. Key checks: does a high-risk finding produce a block verdict; does your app enforce it or just log it; what happens when the optional LLM reviewer refuses or returns malformed output; are you trusting cleaned text instead of the verdict. The real test is the full path—submit a known malicious tool result and confirm enforcement. A log warning is not enforcement.
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