ToolHijacker

MCP tool from AgentNull by ThirdKeyAI

Inject malicious tool documents to compel agent tool selection, 96.43% ASR (NDSS 2026, arXiv:2504.19793)

How to use it

ToolHijacker is exposed by the AgentNull MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the ToolHijacker tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

FULL AGENTNULL LISTING

Other tools in AgentNull (1)

UDora

Reasoning trace hijacking via automated injection point discovery (arXiv:2503.01908, February 2025)