Your AI agent said it blocked the attack. I read the source of 5 tools that check if it's lying.

AI agents are increasingly vulnerable to prompt injection attacks that can bypass standard security guardrails. A recent analysis of five open-source security tools—Promptfoo, OWASP ASRH, RAMPART, Pipelock, and ConsequenceBench—reveals a critical gap in the industry: the difference between an agent claiming to block an attack and the actual verification of side effects in real-world systems. While tools like Promptfoo excel at pre-deployment red-teaming and Pipelock provides runtime enforcement with signed receipts, none currently offer a turnkey, out-of-band solution for verifying real-world outcomes independently. The author emphasizes that the current security landscape relies on a combination of these tools, noting that true safety requires moving beyond simple output monitoring toward independent, runtime verification of system-level side effects. The analysis concludes that while the ecosystem is maturing, the 'last mile' of verifying that a prohibited action truly did not occur remains an open challenge.