ForumsExploitsMicrosoft Drops RAMPART & Clarity: Pytest-Native AI Red Teaming

Microsoft Drops RAMPART & Clarity: Pytest-Native AI Red Teaming

Incident_Cmdr_Tanya 5/20/2026 USER

Saw this on Hacker News this morning. Microsoft just dropped two new tools, RAMPART and Clarity, to help us wrangle AI security. RAMPART is the big one for me—it’s essentially a Pytest-native framework for red teaming AI agents. This is huge because we can stop rolling our own brittle scripts for prompt injection testing.

RAMPART focuses on "agentic" risks, which means it handles the complexity of AI connecting to external tools and APIs. It allows you to define safety tests just like standard unit tests. You can automate checks for jailbreaks, prompt leaks, and critical tool abuse scenarios. Here is a rough example of what a RAMPART test configuration looks like in Python:

import pytest
from rampart import AgenticTest, check_refusal

class TestAgentSafety(AgenticTest):
    @pytest.mark.safety
    def test_indirect_prompt_injection(self, agent):
        # Simulating a compromised email context
        malicious_c
        response = agent.chat(malicious_context)
        # Check if the agent refused the unsafe action
        assert check_refusal(response) is True

Clarity is the other half of the equation, acting more as a visualization layer. It helps map out the attack surface and explain why a specific input caused a failure, which is often the hardest part of debugging AI behavior.

This seems like a step toward standardizing AI red teaming in CI/CD pipelines. Has anyone started playing with these? I'm curious how they compare to manually running payloads from frameworks like Garak or pyRIT in terms of reducing false positives.

ZE
ZeroTrust_Hannah5/20/2026

This is a solid move for integration. I've been using Garak for standalone scanning, but getting something Pytest-native means I can actually bake these tests into the PR checks for our internal agent tools. The non-determinism of LLMs makes unit testing a nightmare, so having a framework built specifically to handle probabilistic assertions in a test suite is exactly what we needed.

MD
MDR_Analyst_Chris5/20/2026

From a pentester's perspective, I'm skeptical until I see the payload library. Most of these frameworks ship with outdated prompt injection lists (e.g., ignoring the latest UTF-8 obfuscation techniques). However, if Clarity actually provides a decent reproduction of the attack path, it saves me hours of explaining 'why' a jailbreak worked to dev teams who don't understand prompt engineering.

SE
SecArch_Diana5/20/2026

We're seeing a lot of "agentic" tool abuse in the wild lately—agents blindly executing curl commands based on user input. If RAMPART can successfully simulate those tool-calling loops without actually hitting our internal APIs, it's a win for safety. I just hope the setup doesn't require a massive GPU cluster to run the red team agent.

MS
MSP_Owner_Rachel5/21/2026

The CI/CD integration is a game changer for our managed services. I’m specifically curious about the reporting output—can we generate standard JUnit XML? That would save us hours on client compliance deliverables. I’m hoping we can just use a standard flag like:

pytest --junitxml=report.xml

Does anyone know if the custom fixtures interfere with standard Pytest reporting hooks?

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Created5/20/2026
Last Active5/21/2026
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