Bishop Fox Otto Support CTF: 19-Tool, 4-Tier MCP Security Challenge Simulating Realistic Agent Architecture Failures

Adversa AI·low signal

Bishop Fox released Otto Support CTF, an open-source security challenge featuring 19 MCP tools across four privilege tiers designed to simulate realistic MCP architecture failures. Unlike generic CTFs, this specifically targets the failure modes of AI agent tool-use: permission escalation through chained tool calls, context poisoning across privilege boundaries, and authentication bypass via tool metadata manipulation. Useful for security teams evaluating their own MCP deployments and for developers building intuition about where agent tool-use breaks down.