MCP for AWS Security Engineers: Build a Read-Only Security Hub Triage Agent

Short summary

A practical guide to building a read-only AWS Security Hub triage agent using Model Context Protocol (MCP). The author recommends starting with AWS's managed MCP Server and Agent Toolkit, maintaining a strict read-only posture: no production writes, no secrets, no auto-remediation. MCP gives the agent access to context while IAM, SCPs, and human review define the real security boundary. The agent can read findings, group them, draft remediation tickets, and produce evidence files without modifying AWS.

• •Use AWS managed MCP Server + Agent Toolkit for security work, not custom servers
• •Strict read-only posture: no writes, no secrets, no auto-remediation, human review required
• •MCP gives the agent hands; IAM decides what those hands can touch

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