News Brief

Microsoft open-sources Rampart and Clarity for agent security

Historical record This story connects to a documented entry in the Agentic History timeline. As agents increasingly consume external tool outputs and documents via MCP-like patterns, cross-prompt injection becomes a practical red-team target.

Microsoft released two red teaming tools, Rampart and Clarity, aimed at securing agentic software development and supporting incident response.

CyberScoop reported that Rampart is built on PyRIT and is designed to continuously test code during development. The tool focuses on cross-prompt injection risks in workflows where agents process poisoned content from sources such as documents or emails.

CyberScoop reported that Clarity provides security engineering guidance through a desktop app, a web experience, or embedding into a coding agent. The tool helps track objectives and highlight downstream security implications and safer alternatives.

Source: Source


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