
Overview
Klavis Guardrails is a comprehensive security layer designed to protect MCP (Model Context Protocol) integrations from emerging threats. It operates as an intelligent proxy between MCP clients and servers, providing real-time threat detection and policy enforcement.The Security Challenge
MCP’s architecture amplifies security risks by exposing tools, resources, and prompts directly to AI agents. Recent vulnerabilities demonstrate critical flaws:- Prompt Injection via Tool Descriptions: Malicious instructions embedded in MCP tool metadata
- Cross-Repository Information Leakage: Agents coerced into accessing private repositories
- Command Injection and RCE: Basic security flaws allowing arbitrary code execution
- Credential Theft: MCP servers storing OAuth tokens become high-value targets

Security Architecture
